Performance Optimization Report

Assessment Overview

Scan: www.quora.com 5/20/2013 1:49:28 PM

Visited URLs146
Total Issues349
Issues per URL2.39
Start Time5/20/2013 1:49:29 PM
End Time5/20/2013 1:50:31 PM

Zoompf Score

84

Conservative Bandwidth Savings

7.1%

Aggressive Bandwidth Savings

10.8%

Distinct Issues By Severity

This graph shows the number of distinct issues Zoompf found on your website, ordered by severity.

Content Analyzed By Type

This graph shows the types of content that Zoompf analyzed while assessing your website.

Good Gets Better

You can keep reading below to see the rest of Zoompf's awesome Free Performance Scan. But did you know this free scan is missing 95% of the features of our commercial product Zoompf WPO? Take a look at the table below to how WPO can help you find and fix even more performance issues.

  Free Scan Zoompf WPO
Analysis Scope Single Web Page Entire Website
Scan Limits 10 pages/day Unlimited Scans
Reporting Over 10 reports
Performance Issue Details
Issue Remediation Details
Automated Resource Optimization
Authenticated Scans
Mobile Browser Analysis
Private Scan Data
Customer Support
Learn More Learn More

Summary of Issues

Below is the list of performance issues and best practice violations that Zoompf detected in the www.quora.com website. For each issue detected, this report provides a summary of the issue, details about the issue, remediation advice, and a link to additional references.

SeverityIssue NameAffected pages
CritialSSL/TLS Version 2 Enabled1
HighJPEG Candidate Image (GIF)17
HighJPEG Candidate Image (PNG)2
HighJPEG Candidate Image (Transparent PNG)19
HighSlow SSL Cipher (3DES)3
HighUnoptimized Image (Animated GIF)1
HighUnoptimized Image (GIF)10
HighUnoptimized Image (JPEG)1
HighUnoptimized Image (PNG)39
HighUnoptimized Image (Progressive JPEG)1
HighFeed Not Using Last-Modified Header1
HighToo Many Selectors for IE1
HighCombinable CSS Images2
HighDomain Sharding Not Implemented1
MediumCSS Inlining Candidate2
MediumCSS Not Minified (External File)2
MediumDuplicate Resource (Image)3
MediumExcessive SSL Symmetric Key Size3
MediumHigh Quality JPEG Image2
MediumImage Tags Without Dimensions1
MediumIncorrect Server Time12
MediumJavaScript Debugging Statements (console.log())2
MediumJavaScript Not Minified (External File)2
MediumStatic HTML Not Minified1
MediumUnoptimized Resource Location (JavaScript)1
MediumCompressed Content without Vary header9
MediumCSS expression() Detected1
MediumDynamic HTML Not Minified1
MediumPNG8 Candidate Image (Color Count)2
MediumPNG8 Candidate Image (Pixel Area)34
Low<SCRIPT SRC> Without Defer1
LowAdjacent <SCRIPT> Blocks1
LowBeacon Image/Place Holder Detected3
LowExcessive <META> Tags1
LowExcessive CSS Rules (CSS File)2
LowJavaScript Not Minified (<SCRIPT> Block)1
LowJavaScript Scope Change (with)1
LowUncommon HTTP Header140
LowUnnecessary HTTP Caching Header (Pragma)3
LowExcessive Hidden Inputs (Number)1
LowJavaScript Dynamic Compilation (eval)1
LowJavaScript Dynamic Compilation (setTimeout)1
LowPotentially Cacheable Image (iPhone)1
InfoSSL Certificate without Extended Validation5
InfoUncacheable Response (iPhone)8
InfoWebP Candidate Image2

Critial SSL/TLS Version 2 Enabled

impact levelimpact levelimpact levelimpact level - Critical impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This web server is configured to allow the use of SSL/TLS Version 2. This is an insecure protocol and should not be used by any web server. In addition, using SSLv2 violated many compliance policies related to websites, such as PCI/DSS. Reconfigure this web server to only use SSL/TLS Version 3.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


High JPEG Candidate Image (GIF)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 17

Issue Summary

This unanimated image uses the GIF image format. Converting this GIF image to a JPEG formatted image would reduce its size by over 35%. Since the GIF format has different features and advantages than the JPEG format (such as fixed color palettes and Boolean transparency) you should evaluate each image to determine if it should be converted. Since converting to JPEG yields such a large saving you should make every effort to do so where appropriate. Converting these GIF images to JPEG images will improve page load times while reducing bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (17)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting this image to a JPEG image.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-d508ac4508109d7c.gif 1,15148757.689%
https://d1vgw4v7ja2ido.cloudfront.net/-130412424304b2ed.gif 82537754.303%
https://d1vgw4v7ja2ido.cloudfront.net/-0d551b42a05faea1.gif 1,19037168.824%
https://d1vgw4v7ja2ido.cloudfront.net/-1e8d0fc0a9bfb134.gif 82520774.909%
https://d1vgw4v7ja2ido.cloudfront.net/-5476f9098ba9c559.gif 1,19333571.920%
https://d1vgw4v7ja2ido.cloudfront.net/-261d53d6d95339cd.gif 2,01261569.433%
https://d1vgw4v7ja2ido.cloudfront.net/-d4c37186a50563c4.gif 1,18570440.591%
https://d1vgw4v7ja2ido.cloudfront.net/-18419c0940bb9fab.gif 1,18170340.474%
https://d1vgw4v7ja2ido.cloudfront.net/-336a369aa4be0da3.gif 1,20657652.239%
https://d1vgw4v7ja2ido.cloudfront.net/-d37f623fe4c81324.gif 1,20641066.003%
https://d1vgw4v7ja2ido.cloudfront.net/-187017c506a0b29b.gif 1,11022979.369%
https://d1vgw4v7ja2ido.cloudfront.net/-0138a9bd96cc79de.gif 1,11520781.435%
https://d1vgw4v7ja2ido.cloudfront.net/-b020eed9df7981f1.gif 1,19334970.746%
https://d1vgw4v7ja2ido.cloudfront.net/-bbf3e2e2412d1031.gif 1,11730073.142%
https://d1vgw4v7ja2ido.cloudfront.net/-bf7d8a9f6e26802a.gif 1,10338764.914%
https://d1vgw4v7ja2ido.cloudfront.net/-a36e90f232cd99f0.gif 1,11632271.147%
https://d1vgw4v7ja2ido.cloudfront.net/-045295f305a27589.gif 1,16030673.621%
Average
Savings:
65.381%

High JPEG Candidate Image (PNG)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This image uses the PNG image format. Converting this PNG image to a JPEG formatted image would reduce its size by over 35%. Since the PNG format has different features and advantages than the JPEG format (such as alpha transparency and sharp edges) you should evaluate each image to determine if it should be converted. Since converting to JPEG yields such a large saving you should make every effort to do so where appropriate. Converting these PNG images to JPEG images will improve page load times while reducing bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting this image to a JPEG image.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-c1e9eb193f358ca7.png 1,26247162.678%
https://d1vgw4v7ja2ido.cloudfront.net/-2fc57a38a629c495.png 1,78856068.680%
Average
Savings:
66.197%

High JPEG Candidate Image (Transparent PNG)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 19

Issue Summary

This image uses the PNG image format. Converting this PNG image to a JPEG formatted image would reduce its size by over 35%. Since the PNG format has different features and advantages than the JPEG format (such as alpha transparency and sharp edges) you should evaluate each image to determine if it should be converted. Since converting to JPEG yields such a large saving you should make every effort to do so where appropriate. Converting these PNG images to JPEG images will improve page load times while reducing bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (19)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting this image to a JPEG image.

URLOriginal SizeOptimized SizeSavings
https://qsf.is.quoracdn.net/-0221ae28fc359ca7.png 1,74161664.618%
https://qsf.is.quoracdn.net/-717943ea2ab806b1.png 1,48788640.417%
https://qsf.is.quoracdn.net/-634969e6796049f5.png 64,87714,12178.234%
https://d1vgw4v7ja2ido.cloudfront.net/-4a851be8e8b1f964.png 87042051.724%
https://d1vgw4v7ja2ido.cloudfront.net/-f5369c624463f0f6.png 99923976.076%
https://d1vgw4v7ja2ido.cloudfront.net/-35cabff06d4c4939.png 1,04543858.086%
https://d1vgw4v7ja2ido.cloudfront.net/-806126476c74e0be.png 1,04529471.866%
https://d1vgw4v7ja2ido.cloudfront.net/-38cf4fc9985f25dd.png 92616082.721%
https://d1vgw4v7ja2ido.cloudfront.net/-545c181229d33a69.png 2,8501,03863.579%
https://d1vgw4v7ja2ido.cloudfront.net/-36460bc42b25b0d5.png 1,33770547.270%
https://d1vgw4v7ja2ido.cloudfront.net/-58ea695178986068.png 1,95257470.594%
https://d1vgw4v7ja2ido.cloudfront.net/-035444f811e9b315.png 4,9231,63266.849%
https://d1vgw4v7ja2ido.cloudfront.net/-7a4ab72f08b1db65.png 1,54450367.422%
https://d1vgw4v7ja2ido.cloudfront.net/-69f2aa25931b96b9.png 1,67650569.869%
https://d1vgw4v7ja2ido.cloudfront.net/-dff601332759520c.png 1,54579448.608%
https://d1vgw4v7ja2ido.cloudfront.net/-5954f7fbcd0b2de7.png 1,41139771.864%
https://d1vgw4v7ja2ido.cloudfront.net/-8fdf98db52279257.png 1,32951061.625%
https://d1vgw4v7ja2ido.cloudfront.net/-808b583b4b30f6d6.png 1,36040470.294%
https://d1vgw4v7ja2ido.cloudfront.net/-13b3e3de6346e4a5.png 80,45418,17677.408%
Average
Savings:
75.537%

High Slow SSL Cipher (3DES)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 3

Issue Summary

This website is using 3DES instead of the faster RC4 encryption algorithm to encrypt data between the web server and a visitor's browser. SSL allows a variety of different algorithms and different strengths to be used. 3DES was originally designed to be implemented in hardware and is quite slow when implemented in software such as SSL. RC4 is a faster cipher than 3DES and uses less CPU resources all while providing the same level of security protections. You should configure your web server to use RC4 for SSL, and only falling back to 3DES if the visitor's browser does not support RC4 at an acceptable encryption key size. Doing so will reduce the load on you web server.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (3)


High Unoptimized Image (Animated GIF)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This animated GIF image can be further optimized to reduce the file size without reducing image quality. This will improve server performance while decreasing bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by using gifsicle to optimize the animated GIF.

URLOriginal SizeOptimized SizeSavings
https://qsf.is.quoracdn.net/-24b280cb3f0a234e.gif 1,8251,7285.315%

High Unoptimized Image (GIF)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 10

Issue Summary

This GIF image contains extra data such as comments and unused palette entries and also uses an older graphics compression technology. This image can be further optimized using free tools that will reduce the size of the file without changing or reducing the image quality. These image optimizations are especially important as other optimizations, such as HTTP compression, cannot be applied to images. Optimizing this image will improve server performance while decreasing bandwidth consumption and page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (10)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting the BMP images to a PNG and losslessly optimizing the resulting PNG.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-db865070861a00c7.gif 1,8111,47418.609%
https://d1vgw4v7ja2ido.cloudfront.net/-a1e54b2bcd1777c1.gif 1,3961,2907.593%
https://d1vgw4v7ja2ido.cloudfront.net/-958a0f5a5e40d253.gif 5,9584,90617.657%
https://d1vgw4v7ja2ido.cloudfront.net/-f9b585b8f6f8d7bc.gif 9,3478,25011.736%
https://d1vgw4v7ja2ido.cloudfront.net/-df7927883b1c5669.gif 5,3164,34218.322%
https://d1vgw4v7ja2ido.cloudfront.net/-130412424304b2ed.gif 82511186.545%
https://d1vgw4v7ja2ido.cloudfront.net/-042e9b3f5a72e3df.gif 6,3033,49144.614%
https://d1vgw4v7ja2ido.cloudfront.net/-1e8d0fc0a9bfb134.gif 82511186.545%
https://d1vgw4v7ja2ido.cloudfront.net/-e004dba31fd74669.gif 1,5361,16624.089%
https://d1vgw4v7ja2ido.cloudfront.net/-f09da297724cdba3.gif 1,1531,01112.316%
Average
Savings:
24.131%

High Unoptimized Image (JPEG)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This JPEG image is needlessly large. This is due to extra data inside the JPEG file such as comments, embedded thumbnails, or camera meta data. This image can optimized using free tools that would reduce the size of the file without changing or reducing the image quality. These image optimizations are especially important as other optimizations, such as HTTP compression, cannot be applied to images. Optimizing this JPEG image will improve server performance while decreasing bandwidth consumption and page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by using jpegtran to optimize the JPEG image.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-f71e4191f3796f91.jpg 18,39417,0987.046%

High Unoptimized Image (PNG)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 39

Issue Summary

This PNG image is needlessly large. This is due to extra data inside the PNG file such as comments or unused palette entries as well as the use of an inefficient DEFLATE compressor. This image can optimized using free tools that would reduce the size of the file without changing or reducing the image quality. These image optimizations are especially important as other optimizations, such as HTTP compression, cannot be applied to images. Optimizing this PNG image will improve server performance while decreasing bandwidth consumption and page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (39)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by using pngcrush to optimize the PNG image.

URLOriginal SizeOptimized SizeSavings
https://qsf.is.quoracdn.net/-0221ae28fc359ca7.png 1,74172658.300%
https://qsf.is.quoracdn.net/-717943ea2ab806b1.png 1,48751865.165%
https://qsf.is.quoracdn.net/-634969e6796049f5.png 64,87749,45623.770%
https://qsf.is.quoracdn.net/-8bfc7b614973123f.png 2,9851,09463.350%
https://d1vgw4v7ja2ido.cloudfront.net/-8f40b08cd9b102f7.png 1,11720781.468%
https://d1vgw4v7ja2ido.cloudfront.net/-4a851be8e8b1f964.png 8708492.414%
https://d1vgw4v7ja2ido.cloudfront.net/-deacbe037f57257f.png 2,86012695.594%
https://d1vgw4v7ja2ido.cloudfront.net/-f5369c624463f0f6.png 99911888.188%
https://d1vgw4v7ja2ido.cloudfront.net/-35cabff06d4c4939.png 1,04512488.134%
https://d1vgw4v7ja2ido.cloudfront.net/-d11296f7d2d19ff7.png 2,86411496.020%
https://d1vgw4v7ja2ido.cloudfront.net/-806126476c74e0be.png 1,04512488.134%
https://d1vgw4v7ja2ido.cloudfront.net/-38cf4fc9985f25dd.png 9267092.441%
https://d1vgw4v7ja2ido.cloudfront.net/-545c181229d33a69.png 2,8502,47113.298%
https://d1vgw4v7ja2ido.cloudfront.net/-36460bc42b25b0d5.png 1,33734973.897%
https://d1vgw4v7ja2ido.cloudfront.net/-55dbc313811bb3d8.png 1097035.780%
https://d1vgw4v7ja2ido.cloudfront.net/-dec1f2451ad29f76.png 1,13525277.797%
https://d1vgw4v7ja2ido.cloudfront.net/-035444f811e9b315.png 4,9234,06317.469%
https://d1vgw4v7ja2ido.cloudfront.net/-d77a5498f475b158.png 36723336.512%
https://d1vgw4v7ja2ido.cloudfront.net/-7a4ab72f08b1db65.png 1,54474551.749%
https://d1vgw4v7ja2ido.cloudfront.net/-c1e9eb193f358ca7.png 1,26238069.889%
https://d1vgw4v7ja2ido.cloudfront.net/-69f2aa25931b96b9.png 1,67679752.446%
https://d1vgw4v7ja2ido.cloudfront.net/-dff601332759520c.png 1,54558462.201%
https://d1vgw4v7ja2ido.cloudfront.net/-5954f7fbcd0b2de7.png 1,41143069.525%
https://d1vgw4v7ja2ido.cloudfront.net/-7483203c4fed497c.png 3,46476078.060%
https://d1vgw4v7ja2ido.cloudfront.net/-8fdf98db52279257.png 1,32938071.407%
https://d1vgw4v7ja2ido.cloudfront.net/-30922fb9cf2e66a8.png 19514127.692%
https://d1vgw4v7ja2ido.cloudfront.net/-1c9d519ce338ef6b.png 1,32633874.510%
https://d1vgw4v7ja2ido.cloudfront.net/-45bcf045c5eb0400.png 1417050.355%
https://d1vgw4v7ja2ido.cloudfront.net/-e6cbb0b55604241f.png 2,8118896.869%
https://d1vgw4v7ja2ido.cloudfront.net/-1a03d2a5954af231.png 87143450.172%
https://d1vgw4v7ja2ido.cloudfront.net/-808b583b4b30f6d6.png 1,36042868.529%
https://d1vgw4v7ja2ido.cloudfront.net/-138685b5d1bbeb9c.png 2,9531,01565.628%
https://d1vgw4v7ja2ido.cloudfront.net/-c300f9062836c2c0.png 49338222.515%
https://d1vgw4v7ja2ido.cloudfront.net/-13b3e3de6346e4a5.png 80,4542,11997.366%
https://d1vgw4v7ja2ido.cloudfront.net/-2fc57a38a629c495.png 1,78893447.763%
https://d1vgw4v7ja2ido.cloudfront.net/-0297edc04ea7365a.png 3,35953184.192%
https://d1vgw4v7ja2ido.cloudfront.net/-b1fc91f2220c5a48.png 3,40356083.544%
https://d1vgw4v7ja2ido.cloudfront.net/-fce0e35f067d54ce.png 5,3592,46054.096%
https://d1vgw4v7ja2ido.cloudfront.net/-a25600f99da4c41f.png 3,17237988.052%
Average
Savings:
64.901%

High Unoptimized Image (Progressive JPEG)

impact levelimpact levelimpact level - High impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This JPEG image is needlessly large. This is due to unnecessary nongraphical data inside of the file as well as how the graphical data is organized. By converting this JPG to a progressively rendered JPG you can reduce the size of the file without losing image quality. This optimization is especially important as other optimizations, such as HTTP compression, cannot be applied to images. Optimizing this JPEG image will improve server performance while decreasing bandwidth consumption and page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by using jpegtran to convert the image to a progressive JPEG image.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-e9efdb881e47c4b0.jpg 23,63222,1236.385%

High Feed Not Using Last-Modified Header

impact levelimpact levelimpact level - High impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

This feed does not using the Last-Modified HTTP header. If you use configure a Last-Modified header for this feed and set the header's value to the date and time the last item was published, then visitors will not need to download the entire feed if no new items have been published. This will reduce bandwidth consumption for the website.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


High Too Many Selectors for IE

impact levelimpact levelimpact level - High impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

This style sheet contains rules with over 4095 selectors. Internet Explorer 6, 7, 8, and 9 will not use properly apply style information on rules beyond the 4095th selector. Reducing the number of selectors on this page allow the web page to render correctly.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


High Combinable CSS Images

impact levelimpact levelimpact level - High impact

effort iconeffort iconeffort icon - Difficult to solve

URLs with Issue: 2

Issue Summary

This resource contains style information will too many individual background images. The browser must make an HTTP request for each background image that is used when rendering the web page. It is not uncommon for over half of all HTTP requests made for page resources to be for CSS background images. You can combine nearly all these background images into a handful of CSS Sprites. This will reduce the number of HTTP requests required to load this page which can significantly improve page load times while reducing web server load and bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)


High Domain Sharding Not Implemented

impact levelimpact levelimpact level - High impact

effort iconeffort iconeffort icon - Difficult to solve

URLs with Issue: 1

Issue Summary

This page does not use multiple domain names to take advantage of parallel downloading. Parallel downloading allows the browser to download all the resources that make up a web page faster by downloading them in parallel from multiple hostnames. This will improve page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Medium CSS Inlining Candidate

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This external CSS file is less than 2 KB in size. This is a small amount of content to require a complete round trip to the web server and back. You should consider inlining the contents of the CSS file by placing the style information directly into the web page inside of a <style> tag. While this will slightly increase the size of the HTML page, it will improve page load times by removing an HTTP request. Since browser don't render any content until all style information has been downloaded, inlining this CSS file will also cause the web page to render faster in the browser.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)


Medium CSS Not Minified (External File)

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This CSS file contains style information that has not been minified. Minifying style information reduces its the size by removing whitespace, comments, and duplicate rules allowing for faster download and parsing. Minifying your CSS files helps improve page load time and decreases bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by using a CSS minifier tool.

URLOriginal SizeOptimized SizeSavings
https://qsc.is.quoracdn.net/-f791fcfc8935e1ad.css 1,4351,3029.268%
https://qsc.is.quoracdn.net/-90e78786ffdcf5a9.css 1,9591,8435.921%
Average
Savings:
7.336%

Medium Duplicate Resource (Image)

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 3

Issue Summary

This image is identical to another image on the website but both pages are referenced using different URLs. Unfortunately, because the URLs are different, a visitor's web browser must request this image even though it might already have an identical copy of the image cached under a different URL. Duplicate content served from different URLs can also negatively affect search engine rankings. You should remove this duplicate image and use a single, consistent URL to reference the image.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (3)


Medium Excessive SSL Symmetric Key Size

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 3

Issue Summary

This website is creating an encrypted SSL connection using a 256 bit symmetric encryption key. 128 bit keys (or 168 bits for 3DES) is the recommended key size for most secure communications on the web, representing a good balance between maximum security and performance. 256 bit encryption is only recommended for the most advanced banking applications and government operations. You should reconfigure your web server or SSL concentrator to use 128 bit symmetric keys. Doing so will reduce the load on you web server.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (3)


Medium High Quality JPEG Image

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This JPEG image was saved with a quality setting greater than 80. JPEG images use a variable level of quality, the higher the number the greater the quality but the larger the file size. However this setting can be deceptive. A quality rating of 90 does not mean "keep 90% of the graphical data." The quality scale is purely arbitrary; it's not a percentage of anything. A general guideline for JPEG images on the web is to use a quality rating of 50-75. This quality range is a good compromise between image quality and file size. Reducing this high quality JPEG will reduce file size, which will decrease bandwidth consumption and improve page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by reducing the quality of the JPEG image to 70.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-e9efdb881e47c4b0.jpg 23,6326,33773.185%
https://d1vgw4v7ja2ido.cloudfront.net/-f71e4191f3796f91.jpg 18,39417,3325.774%
Average
Savings:
43.680%

Medium Image Tags Without Dimensions

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This web page contains <img> tags which are not using height or width attributes. If the browser knows the height and width of an image before it downloads and renders the image it can continue to render the web page. If the browser does not know the image size it must redraw the web page again after the image downloads. Adding height or width attributes will make this web page render faster.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Medium Incorrect Server Time

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 12

Issue Summary

The Date HTTP header that was returned for this response is not accurate, even when adjusted to the appropriate time zone. HTTP's caching depends on reasonable synchronization between clocks on the server and client. Clock errors in the Date header can cause responses that should be cacheable to be considered uncacheable. This is especially true for items with short caching lifetimes. It can also cause errors when using conditional HTTP requests.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (12)


Medium JavaScript Debugging Statements (console.log())

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This resource contains JavaScript code with debugging functions. Specifically this code contains call to the console.log() function. This function is useful during development to aid in debugging. However it should not appear in production code for several reasons: it increases the size of this response; it causes a runtime performance penalty; and it can cause runtime error messages in browser which do not have a console object. Removing code that uses console.log() will slightly improve performance for this response.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)


Medium JavaScript Not Minified (External File)

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This page contains JavaScript code that has not been minified. Minifying JavaScript reduces the size of the JavaScript allowing the browser to download, parse, and execute the code faster. This will improve application performance by decreasing page load time, bandwidth consumption, and web server load.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by using a JavaScript minifier tool.

URLOriginal SizeOptimized SizeSavings
https://qsc.is.quoracdn.net/-f15e3a68b398c880.js 12,10011,8022.463%
https://qsc.is.quoracdn.net/-0c46e4aa861b60e6.js 823,279809,6701.653%
Average
Savings:
1.665%

Medium Static HTML Not Minified

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This web page contains HTML that has not been minified. HTML can contain extra whitespace, comments, unrecognized HTML tags, unminified JavaScript code in <script> tags, and unminified CSS data in <style> tags. For this web page, minifying the HTML will reduce the size of the page by more than 5%. Since this appears to be a static web page, you only need to minify the static HTML file. This is much easier to do then if this was a dynamically generated web page. This solution will reduce bandwidth consumption while improving page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by minimizing the HTML by removing comments and whitespace and minifying any JavaScript or CSS blocks.

URLOriginal SizeOptimized SizeSavings
https://www.quora.com/ 22,72521,1317.014%

Medium Unoptimized Resource Location (JavaScript)

impact levelimpact level - Medium impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This page contains a reference to a external JavaScript file in a suboptimal location. Specifically it contains a <script src> tag that is not in the bottom 20% of the HTML. Browsers stop drawing the page and will not download any other files when they encounter JavaScript code. Moving <script src> tags to the bottom of the web page will improve client-side performance.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Medium Compressed Content without Vary header

impact levelimpact level - Medium impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 9

Issue Summary

This response uses HTTP compression, but does not use a Vary header to instruct downstream caches that multiple versions of the response exist depending on the value of the Accept-Encoding HTTP request header.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

Affected URLs (9)


Medium CSS expression() Detected

impact levelimpact level - Medium impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

CSS Expressions are a proprietary and computationally expensive way to dynamically set style information. They are not supported by most web browsers and can significantly impact your application's client-side performance. They should be avoided and removed.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Medium Dynamic HTML Not Minified

impact levelimpact level - Medium impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

This web page contains HTML that has not been minified. HTML can contain extra whitespace, comments, unrecognized HTML tags, unminified JavaScript code in <script> tags, and unminified CSS data in <style> tags. For this web page, minifying the HTML will reduce the size of the page by more than 5%. Since this appears to be a dynamically generated web page, you should minify the template used by your application for this page. This solution will reduce bandwidth consumption while improving page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by minimizing the HTML by removing comments and whitespace and minifying any JavaScript or CSS blocks.

URLOriginal SizeOptimized SizeSavings
http://www.quora.com/ 2272145.727%

Medium PNG8 Candidate Image (Color Count)

impact levelimpact level - Medium impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 2

Issue Summary

This true color PNG image contains less than 2500 distinct colors. Converting this image from a true color PNG to a palette-based PNG (also called a PNG8) should significantly reduce the size of the image. While PNG8 will not have as many distinct colors as the original image this difference is not usually noticeable for images with less than 2500 distinct colors. Converting this image to a PNG8 will reduce bandwidth consumption and improve page load speeds.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting this image to a PNG8 using pngquant.

URLOriginal SizeOptimized SizeSavings
https://qsf.is.quoracdn.net/-634969e6796049f5.png 64,87723,82663.275%
https://d1vgw4v7ja2ido.cloudfront.net/-13b3e3de6346e4a5.png 80,4541,96497.559%
Average
Savings:
82.254%

Medium PNG8 Candidate Image (Pixel Area)

impact levelimpact level - Medium impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 34

Issue Summary

This true color PNG image has a pixel area less than 100 pixels by 100 pixels. Converting this image from a true color PNG to a palette-based PNG (also called a PNG8) should significantly reduce the size of the image. While PNG8 will not have as many distinct colors as the original image this difference should not be noticeable on such a small sized image. Converting this image to a PNG8 will reduce bandwidth consumption and improve page load speeds.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (34)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting this image to a PNG8 using pngquant.

URLOriginal SizeOptimized SizeSavings
https://qsf.is.quoracdn.net/-0221ae28fc359ca7.png 1,74179354.451%
https://qsf.is.quoracdn.net/-717943ea2ab806b1.png 1,48782644.452%
https://qsf.is.quoracdn.net/-8bfc7b614973123f.png 2,98570476.415%
https://d1vgw4v7ja2ido.cloudfront.net/-8f40b08cd9b102f7.png 1,11719582.543%
https://d1vgw4v7ja2ido.cloudfront.net/-deacbe037f57257f.png 2,86014195.070%
https://d1vgw4v7ja2ido.cloudfront.net/-f5369c624463f0f6.png 99914285.786%
https://d1vgw4v7ja2ido.cloudfront.net/-d11296f7d2d19ff7.png 2,86411496.020%
https://d1vgw4v7ja2ido.cloudfront.net/-38cf4fc9985f25dd.png 9269589.741%
https://d1vgw4v7ja2ido.cloudfront.net/-545c181229d33a69.png 2,8502,20322.702%
https://d1vgw4v7ja2ido.cloudfront.net/-36460bc42b25b0d5.png 1,33735473.523%
https://d1vgw4v7ja2ido.cloudfront.net/-55dbc313811bb3d8.png 1099512.844%
https://d1vgw4v7ja2ido.cloudfront.net/-dec1f2451ad29f76.png 1,13520182.291%
https://d1vgw4v7ja2ido.cloudfront.net/-035444f811e9b315.png 4,9233,02638.533%
https://d1vgw4v7ja2ido.cloudfront.net/-d77a5498f475b158.png 36721740.872%
https://d1vgw4v7ja2ido.cloudfront.net/-7a4ab72f08b1db65.png 1,54480947.604%
https://d1vgw4v7ja2ido.cloudfront.net/-c1e9eb193f358ca7.png 1,26244364.897%
https://d1vgw4v7ja2ido.cloudfront.net/-69f2aa25931b96b9.png 1,67692844.630%
https://d1vgw4v7ja2ido.cloudfront.net/-dff601332759520c.png 1,54585744.531%
https://d1vgw4v7ja2ido.cloudfront.net/-5954f7fbcd0b2de7.png 1,41153062.438%
https://d1vgw4v7ja2ido.cloudfront.net/-7483203c4fed497c.png 3,46485775.260%
https://d1vgw4v7ja2ido.cloudfront.net/-8fdf98db52279257.png 1,32942268.247%
https://d1vgw4v7ja2ido.cloudfront.net/-30922fb9cf2e66a8.png 19515620.000%
https://d1vgw4v7ja2ido.cloudfront.net/-1c9d519ce338ef6b.png 1,32634873.756%
https://d1vgw4v7ja2ido.cloudfront.net/-45bcf045c5eb0400.png 1419532.624%
https://d1vgw4v7ja2ido.cloudfront.net/-e6cbb0b55604241f.png 2,8119996.478%
https://d1vgw4v7ja2ido.cloudfront.net/-1a03d2a5954af231.png 87144449.024%
https://d1vgw4v7ja2ido.cloudfront.net/-808b583b4b30f6d6.png 1,36061454.853%
https://d1vgw4v7ja2ido.cloudfront.net/-138685b5d1bbeb9c.png 2,95370076.295%
https://d1vgw4v7ja2ido.cloudfront.net/-c300f9062836c2c0.png 4934920.203%
https://d1vgw4v7ja2ido.cloudfront.net/-2fc57a38a629c495.png 1,78889350.056%
https://d1vgw4v7ja2ido.cloudfront.net/-0297edc04ea7365a.png 3,35944186.871%
https://d1vgw4v7ja2ido.cloudfront.net/-b1fc91f2220c5a48.png 3,40346186.453%
https://d1vgw4v7ja2ido.cloudfront.net/-fce0e35f067d54ce.png 5,3591,90064.546%
https://d1vgw4v7ja2ido.cloudfront.net/-a25600f99da4c41f.png 3,17235588.808%
Average
Savings:
67.849%

Low <SCRIPT SRC> Without Defer

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This web page contains a <script src> tag which loads an external JavaScript file but it does not use a defer attribute. Using the defer attribute is an easy way to enable parallel downloading of resource for older web browsers like Internet Explorer 7 and Firefox 3.1. If appropriate, you can use the defer attribute to tell the browser it does not need to stop and wait for this external script file to load before downloading or rendering more content. Care must be taken later <script> blocks may use code in deferred <script src> blocks. Solving this issue will improve page load times and client-side performance.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low Adjacent <SCRIPT> Blocks

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This web page contains <script> tags with JavaScript that are adjacent to each other. Since there is no other content between these multiple <script> tags all of their content can be combined into a single <script> tag. This solution will slightly reduce page size and bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

Affected URL (1)


Low Beacon Image/Place Holder Detected

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 3

Issue Summary

This image is a very small image which is less than 4 by 4 pixels in size. This image appears to be used as a place holder image to control page layout, or as a beacon image for a web analytics or advertising package. Both are older, obsolete techniques which can negatively impact web performance. You should determine how this image is used and attempt to remove it. Removing this beacon image/place holder image will reduce the number of requests the browser needs to make and improve page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (3)


Low Excessive <META> Tags

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This HTML page contains an excessive number of <meta> tags. <meta> tags are used to provide additional information about the HTML page such as keywords, descriptions, author information, content licenses, categorical information, index information, and other customized metadata about the HTML page. This nearly all of this data is ignored by a visitors web browser and is unneeded. Reducing the number of <meta> tags will slightly reduce bandwidth consumption and improve page load times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low Excessive CSS Rules (CSS File)

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 2

Issue Summary

This CSS file contains over 750 CSS rules. This is a large number of rules for a single CSS file. Some of these rules are most likely not used by the current page but are used elsewhere on the website, while other rules may not be used at all You should examine this CSS file, remove completely unused rules, and consider delay-loading rules that are not used by the current page. Reducing the number of rules in this CSS file will improve page load times, decrease bandwidth consumption, improve client-side performance, and improve page rendering times.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (2)


Low JavaScript Not Minified (<SCRIPT> Block)

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

This page contains a <script> tag containing JavaScript code that has not been minified. Minifying JavaScript reduces the size of the JavaScript, allowing for faster download and parsing while decreasing bandwidth and server loads.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low JavaScript Scope Change (with)

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 1

Issue Summary

The resource contains JavaScript code that is using the with keyword. JavaScript's with keyword changes modifies the scope chain to help programmers right less code. Modifying the scope chain slows down JavaScript execution in the user's browser so using with can reduce performance. You should avoid using the with; to improve client-side performance.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low Uncommon HTTP Header

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 140

Issue Summary

This resource uses an HTTP header that is not common or was unnecessary given the HTTP request. These are usually inserted for promotional or debugging purposes by the application tier, web server modules, or inline network devices such as load balancers. You can remove this extra an unnecessary HTTP header to slightly reduce bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (140)


Low Unnecessary HTTP Caching Header (Pragma)

impact level - Low impact

effort icon - Easy to solve

URLs with Issue: 3

Issue Summary

This response is using the HTTP header Pragma to attempt to control caching. Most caching proxies and some web browsers do not use the Pragma header to determine caching information. Since this response also uses the Expires or Cache-Control HTTP header the Pragma header is unnecessary. Removing the Pragma header from this response will slightly decrease bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URLs (3)


Low Excessive Hidden Inputs (Number)

impact level - Low impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

This page contains over eight <input type="hidden"> tags. This increases the size of the web page as well as requests from the client for web form submissions. Consider removing or consolidating these fields into a smaller number of hidden inputs or store some of this data on the server in session oriented storage. This will decrease page load time and bandwidth consumption.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low JavaScript Dynamic Compilation (eval)

impact level - Low impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

This resource contains JavaScript code that is using the eval() function. JavaScript's eval() function is used to dynamically compile and execute JavaScript code that is stored in a string. This process is expensive and generally it should be avoided. Avoiding the use of eval() will improve client-side performance.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low JavaScript Dynamic Compilation (setTimeout)

impact level - Low impact

effort iconeffort icon - Challenging to solve

URLs with Issue: 1

Issue Summary

JavaScript's setTimeout() function can be used to execute a JavaScript function after a certain amount of time. If you use pass a string to setTimeout() it must be dynamically compiled when used, which is a horrible performance hit. Pass a function to setTimeout() instead of a string.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Low Potentially Cacheable Image (iPhone)

impact level - Low impact

effort iconeffort iconeffort icon - Difficult to solve

URLs with Issue: 1

Issue Summary

The iPhone is only able to cache responses whose uncompressed size is less than 15 Kilobytes. This image is between 15K and 20K. Crunching the image (to remove meta data) or reducing image qualify might reduce this image to be less than 15K. Reducing the size of this image so it is cacheable on the iPhone will reduce web server load and improve page load speeds for iPhone visitors.

Details

Performance issue background, details, and common causes are only available to Zoompf WPO customers

Remediation

Full issue remediation information and code samples are only available to Zoompf WPO customers

References

Affected URL (1)


Info SSL Certificate without Extended Validation

Infomational Issue

URLs with Issue: 5

Issue Summary

This web server is SSL to encrypt traffic and has a standard SSL certificate to verify its identify. You should consider getting an Extended Validation (EV) SSL certificate. EV certificates are more trustworthy since the issuer performs verifies the identity of the purchaser. Web browsers display EV certificates predominantly to the user, highlighting the address bar green as a sign that a site can be trusted, giving the user with greater confidence in the website they are visiting.

Affected URLs (5)


Info Uncacheable Response (iPhone)

Infomational Issue

URLs with Issue: 8

Issue Summary

The iPhone is only able to cache web server responses whose uncompressed size is less than 15 Kilobytes. This response is greater than 20K. There is no easy way to make this response small enough to be cached by the iPhone. If this is an important resource that should be cached you should redesign the resource so it is small enough to be cached. Caching responses on the iPhone will reduce web server load and improve page load speeds for iPhone visitors.

Affected URLs (8)


Info WebP Candidate Image

Infomational Issue

URLs with Issue: 2

Issue Summary

This JPEG image could be converted to a WebP image that is over 50% smaller. WebP is a new image format created by Google and is only supported by the Chrome and Opera web browsers. If you wanted to convert this image, you would need to configure you web server or application to serve a different image for browsers that support WebP. The best solution would be to implement this logic so that the URL for this image can be rewritten to point to the WebP version of the image. This ensures there will be no caching problems.

Affected URLs (2)

The savings table details how much savings there is in optimizing these resources. We achieved these savings by converting this image to WebP using cwebp.

URLOriginal SizeOptimized SizeSavings
https://d1vgw4v7ja2ido.cloudfront.net/-e9efdb881e47c4b0.jpg 23,6321,68892.857%
https://d1vgw4v7ja2ido.cloudfront.net/-f71e4191f3796f91.jpg 18,3949,13050.364%
Average
Savings:
74.259%