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Description

Executive Summary

The web should be fast.

Performance Report for: http://www.studocu.com/ Report generated: Thu, Jun 23, 2016, 5:00 AM -0700 Test Server Region: Vancouver, Canada Using: Firefox (Desktop) 45.0.2, PageSpeed 1.12.16, YSlow 3.1.8 PageSpeed Score

YSlow Score

(97%)

(82%)

Page Load Time

Total Page Size

Requests

3.3s

1.42MB

28

Top 5 Priority Issues Minimize request size

E (57)

AVG SCORE: 98%

CONTENT

HIGH

Leverage browser caching

D (60)

AVG SCORE: 64%

SERVER

HIGH

Minimize redirects

D (64)

AVG SCORE: 92%

CONTENT

HIGH

Defer parsing of JavaScript

C (78)

AVG SCORE: 52%

JS

HIGH

Optimize the order of styles and scripts

B (85)

AVG SCORE: 92%

CSS/JS

HIGH

How does this affect me? Studies show that users leave a site if it hasn't loaded in 4 seconds; keep your users happy and engaged by providing a fast performing website.

What do these grades mean?

As if you didn't need more incentive, Google has announced that they are using page speed in their ranking algorithm.

This report is an analysis of your site with Google and Yahoo!'s metrics for how to best develop a site for optimized speed. The grades you see represent how well the scanned URL adheres to those rules.

About GTmetrix

Lower grades (C or lower) mean that the page can stand to be faster using better practices and optimizing your settings.

We can help you develop a faster, more efficient, and all-around improved website experience for your users. We use Google PageSpeed and Yahoo! YSlow to grade your site's performance and provide actionable recommendations to fix these issues.

What's in this report?

About the Developer GTmetrix is developed by the good folks at GT.net, a Vancouver-based performance hosting company with over 20 years experience in web technology.

This report covers basic to technical analyses on your page. It is categorized under many headings: Executive: Overall score information and Priority Issues History: Graphed history of past performance Waterfall: Graph of your site's loading timeline Technical: In-depth PageSpeed & YSlow information These will provide you with a snapshot of your performance.

https://gt.net/

Analyze your site at https://gtmetrix.com

Page 1 of 10

History History Page load times

HTML D/L Time

Page Load Time

Page sizes and request counts

Requests

HTML Size

Total Page Size

PageSpeed and YSlow scores

PageSpeed Score

YSlow Score

Analyze your site at https://gtmetrix.com

Page 2 of 10

Waterfall Chart Waterfall Chart The waterfall chart displays the loading behaviour of your site in your selected browser. It can be used to discover simple issues such as 404's or more complex issues such as external resources blocking page rendering. StuDocu - Free summaries, past exams & lecture notes GET www.studocu.c 200 OK studocu.co

7.4 KB

GET sass-0f4ff7bb6 200 OK d20ohkaloy GET 2680080260.js 200 OK cdn.optimiz

75.5 KB 70.5 KB

126ms 36ms

GET ga596849.js

200 OK studocu.co

10.4 KB

35ms

GET messages-146 200 OK studocu.co GET all-4397337cd 200 OK d20ohkaloy

22.2 KB 95.4 KB

GET main-d704a66 200 OK d20ohkaloy 266.4 KB GET Lato-Regular.w200 OK d20ohkaloy 178.4 KB GET fbevents.js

200 OK connect.fac

509ms

941ms 132ms 157ms 42ms

3.6 KB

92ms

GET gtm.js?id=GTM 200 OK googletagm 15.6 KB GET sprite-146668 200 OK d20ohkaloy 319.6 KB

71ms 56ms

GET hero-illustratio 200 OK d20ohkaloy 42.4 KB GET Lato-Light.wof 200 OK d20ohkaloy 177.2 KB

20ms 34ms

GET fontawesome- 200 OK d20ohkaloy

55.4 KB

GET tr?id=1612937 200 OK facebook.c GET conversion_as 200 OK googleadse

43 B 3.5 KB

GET prum.min.js GET analytics.js

200 OK rum-static.p 2.6 KB 200 OK google-ana 11.2 KB

GET mixpanel-2-lat 200 OK cdn.mxpnl.

17.6 KB

GET hotjar-131360 200 OK static.hotja GET widgets.js 200 OK platform.tw

2.2 KB 30.1 KB

41ms 998ms 73ms 10ms 47ms 22ms 150ms 68ms 34ms

POST ga596849.js? 200 OK studocu.co GET 974361489?ra 302 Fou googleads.

20 B 42 B

GET track?data=ey 200 OK api.mixpane

1B

29ms

GET track?data=ey 200 OK api.mixpane GET modules-e12a 200 OK script.hotja

1B 46 KB

29ms

GET 974361489?fm 302 Fou google.com

42 B

GET 974361489?fm 200 OK google.ca 28 Requests

42 B 1.4 MB

Analyze your site at https://gtmetrix.com

246ms

166ms 148ms 188ms 3.23s (onload: 3.28s)

Page 3 of 10

PageSpeed Recommendations PageSpeed Recommendations RECOMMENDATION

Minimize request size

GRADE E (57)

RELATIVE AVG SCORE: 98%

TYPE

PRIORITY

CONTENT

HIGH

The requests for the following URLs don't fit in a single packet. Reducing the size of these requests could reduce latency. http://www.studocu.com /ga596849.js ?PID=3119DF0B-3C06-308A-88B4-6118E4B86D16 has a request size of 3.8KiB Request URL: 75B Cookies: 822B Referer Url: 23B Other: 2.9KiB

Leverage browser caching

D (60)

AVG SCORE: 64%

SERVER

HIGH

The following cacheable resources have a short freshness lifetime. Specify an expiration at least one week in the future for the following resources: http://static.hotjar.com/c/hotjar-131360.js ?s v=5 (1 minute) http://cdn.optim izely.com /js/2680080260.js (2 minutes ) http://www.studocu.com /ga596849.js (4 minutes) http://www.googletagmanager.com/gtm.js?id=GTM-5L5Q5W (16 minutes 25 seconds) http://connect.facebook.net/en_US/fbevents.js (20 minutes) https://platform .twitter.com /widgets.js (30 minutes ) http://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js (1 hour) http://www.google-analytics.com /analytics .js (2 hours)

Minimize redirects

D (64)

AVG SCORE: 92%

CONTENT

HIGH

Remove the following redirect chain if possible: https://googleads.g.doubleclick.net/pagead/viewthroughconversion/974361489/?random=1466683237350&cv=8&fst=1466683237350&num=1&fmt=3&guid =ON&u_h=861&u_w=1024&u_ah=861&u_aw=1024&u_cd=24&u_his=1&u_tz=-420&u_java=false&u_nplug=1&u_nmim e=2&frm=0&url=http%3A//www.stud ocu.com /&tiba=StuDocu%20-%20Free%20sum maries %2C%20pas t%20exams%20%26%20lecture%20notes &as ync=1 https://www.google.com /ads /user-lists/974361489/?fmt=3&num=1&cv=8&frm=0&url=http%3A//www.studocu.com/&random=1298318741 https://www.google.ca/ads/user-lis ts/974361489/?fmt=3&num=1&cv=8&frm =0&url=http%3A//www.studocu.com/&random=1298318741&ipr=y

Defer parsing of JavaScript

C (78)

AVG SCORE: 52%

JS

HIGH

150.7KiB of JavaScript is parsed during initial page load. Defer parsing JavaScript to reduce blocking of page rendering. http://cdn.optim izely.com /js/2680080260.js (147.3KiB) http://www.studocu.com / (3.4KiB of inline JavaScript)

Optimize the order of styles and scripts

B (85)

AVG SCORE: 92%

CSS/JS

HIGH

The following inline script blocks were found in http://www.studocu.com/ between an external CSS file and another resource. To allow parallel downloading, move the inline script before the external CSS file, or after the next resource. Inline script block #1

Analyze your site at https://gtmetrix.com

Page 4 of 10

PageSpeed Recommendations Prefer asynchronous resources

B (85)

AVG SCORE: 97%

JS

MEDIUM

The following resources are loaded synchronously. Load them asynchronously to reduce blocking of page rendering. http://www.studocu.com / loads https://platform .twitter.com /widgets.js synchronously.

Remove query strings from static resources

A (90)

AVG SCORE: 85%

CONTENT

HIGH

Resources with a "?" in the URL are not cached by some proxy caching servers. Remove the query string and encode the parameters into the URL for the following resources: http://d20ohkaloym e4g.cloudfront.net/fonts/fontawesome-webfont.woff2?v=4.3.0 http://static.hotjar.com/c/hotjar-131360.js ?s v=5

Specify a cache validator

A (90)

AVG SCORE: 93%

SERVER

HIGH

The following resources are missing a cache validator. Resources that do not specify a cache validator cannot be refreshed efficiently. Specify a Last-Modified or ETag header to enable cache validation for the following resources: http://www.googletagmanager.com/gtm.js?id=GTM-5L5Q5W http://www.studocu.com /ga596849.js

Specify a Vary: Accept-Encoding header

A (95)

AVG SCORE: 92%

SERVER

HIGH

CSS

HIGH

The following publicly cacheable, compressible resources should have a "Vary: Accept-Encoding" header: https://script.hotjar.com/modules-e12a7ede294d22ffa3a8a711155156e3.js

Minify CSS

A (99)

AVG SCORE: 91%

Minifying the following CSS resources could reduce their size by 353B (1% reduction). Minifying http://d20ohkaloym e4g.cloudfront.net/build/cs s/studocu/sass-0f4ff7bb6c.css could save 353B (1% reduction) after com pression. See optimized ver sion

Minify JavaScript

A (99)

AVG SCORE: 93%

JS

HIGH

Minifying the following JavaScript resources could reduce their size by 2.3KiB (1% reduction). Minifying Minifying ion Minifying Minifying Minifying Minifying Minifying Minifying Minifying Minifying Minifying

http://cdn.optim izely.com /js/2680080260.js could save 577B (1% reduction) after compres sion. See optim ized version https://script.hotjar.com/modules-e12a7ede294d22ffa3a8a711155156e3.js could save 565B (2% reduction) after compress ion. See optim ized vers http://www.googletagmanager.com/gtm.js?id=GTM-5L5Q5W could s ave 376B (3% reduction) after com pression. See optimized version https ://platform .twitter.com /widgets.js could save 238B (1% reduction) after com pression. See optimized version http://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js could s ave 207B (2% reduction) after compress ion. See optim ized version http://d20ohkaloym e4g.cloudfront.net/build/js/main-d704a66dce.redux.js could save 134B (1% reduction) after compress ion. See optim ized version http://connect.facebook.net/en_US/fbevents.js could save 127B (4% reduction) after compress ion. See optim ized version http://www.google-analytics.com /analytics .js could s ave 67B (1% reduction) after com pression. See optimized version http://static.hotjar.com/c/hotjar-131360.js ?s v=5 could save 18B (1% reduction) after com pression. See optimized version http://d20ohkaloym e4g.cloudfront.net/build/js/all-4397337cdd.js could save 17B (1% reduction) after compress ion. See optimized version http://www.googleadservices .com/pagead/conversion_async.js could save 15B (1% reduction) after compress ion. See optimized version

Analyze your site at https://gtmetrix.com

Page 5 of 10

PageSpeed Recommendations Minifying http://www.studocu.com /ga596849.js could save 15B (1% reduction) after com pression. See optimized version Minifying http://www.studocu.com /ass ets/js/lang/en/mes sages-1466609793.js could save 14B (1% reduction) after com pression. See optimized version

Minify HTML

A (96)

AVG SCORE: 94%

CONTENT

LOW

Minifying the following HTML resources could reduce their size by 621B (9% reduction). Minifying http://www.studocu.com / could save 621B (9% reduction) after com pression. See optimized version

Avoid bad requests

A (100)

AVG SCORE: 98%

CONTENT

HIGH

A (100)

AVG SCORE: 95%

CONTENT

HIGH

A (100)

AVG SCORE: 97%

SERVER

HIGH

A (100)

AVG SCORE: 88%

SERVER

HIGH

A (100)

AVG SCORE: 97%

SERVER

HIGH

A (100)

AVG SCORE: 95%

CSS

HIGH

A (100)

AVG SCORE: 97%

JS

HIGH

A (100)

AVG SCORE: 80%

IMAGES

HIGH

A (100)

AVG SCORE: 100%

CSS

HIGH

You scored 100% on this recommendation - nothing to do here! Avoid a character set in the meta tag You scored 100% on this recommendation - nothing to do here! Avoid landing page redirects You scored 100% on this recommendation - nothing to do here!

Enable gzip compression You scored 100% on this recommendation - nothing to do here! Enable Keep-Alive You scored 100% on this recommendation - nothing to do here! Inline small CSS You scored 100% on this recommendation - nothing to do here! Inline small JavaScript You scored 100% on this recommendation - nothing to do here! Optimize images You scored 100% on this recommendation - nothing to do here! Put CSS in the document head

Analyze your site at https://gtmetrix.com

Page 6 of 10

PageSpeed Recommendations You scored 100% on this recommendation - nothing to do here! Serve resources from a consistent URL

A (100)

AVG SCORE: 94%

CONTENT

HIGH

A (100)

AVG SCORE: 80%

IMAGES

HIGH

A (100)

AVG SCORE: 97%

CONTENT

HIGH

A (100)

AVG SCORE: 48%

IMAGES

HIGH

A (100)

AVG SCORE: 96%

CSS

MEDIUM

A (100)

AVG SCORE: 85%

IMAGES

MEDIUM

You scored 100% on this recommendation - nothing to do here! Serve scaled images You scored 100% on this recommendation - nothing to do here! Specify a character set early You scored 100% on this recommendation - nothing to do here! Specify image dimensions You scored 100% on this recommendation - nothing to do here! Avoid CSS @import You scored 100% on this recommendation - nothing to do here! Combine images using CSS sprites You scored 100% on this recommendation - nothing to do here!

Analyze your site at https://gtmetrix.com

Page 7 of 10

YSlow Recommendations YSlow Recommendations RECOMMENDATION

Add Expires headers

GRADE F (0)

RELATIVE AVG SCORE: 25%

TYPE

PRIORITY

SERVER

HIGH

There are 12 static components without a far-future expiration date. http://cdn.optim izely.com /js/2680080260.js http://www.studocu.com /ga596849.js http://connect.facebook.net/en_US/fbevents.js http://www.googletagmanager.com/gtm.js?id=GTM-5L5Q5W https://www.facebook.com/tr/?id=1612937968993502&ev=PageView&dl=http%3A%2F%2Fwww.studocu.com%2F&rl=&if=false&ts =1466683236585&v=2.5. 0&pv=visible http://www.googleadservices .com/pagead/conversion_async.js http://rum -static.pingdom .net/prum.min.js http://www.google-analytics.com /analytics .js http://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js http://static.hotjar.com/c/hotjar-131360.js ?s v=5 https://platform .twitter.com /widgets.js https://www.google.ca/ads/user-lis ts/974361489/?fmt=3&num=1&cv=8&frm =0&url=http%3A//www.studocu.com/&random=1298318741&ipr=y

Make fewer HTTP requests

E (56)

AVG SCORE: 34%

CONTENT

HIGH

AVG SCORE: 12%

SERVER

MEDIUM

This page has 14 external Javascript scripts. Try combining them into one. Use a Content Delivery Network (CDN)

E (50)

Using a CDN YSlow doesn't recognize? Specify your CDNs in your User Settings. There are 5 static components that are not on CDN. http://www.studocu.com /ga596849.js http://www.studocu.com /ass ets/js/lang/en/m essages -1466609793.js https://www.facebook.com/tr/?id=1612937968993502&ev=PageView&dl=http%3A%2F%2Fwww.studocu.com%2F&rl=&if=false&ts =1466683236585&v=2.5. 0&pv=visible http://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js https://www.google.ca/ads/user-lis ts/974361489/?fmt=3&num=1&cv=8&frm =0&url=http%3A//www.studocu.com/&random=1298318741&ipr=y

Reduce DNS lookups

F (35)

AVG SCORE: 73%

CONTENT

LOW

The components are split over more than 4 domains www.studocu.com : 4 com ponents, 141.0K (40.9K GZip) d20ohkaloym e4g.cloudfront.net: 5 components, 2398.0K (447.7K GZip) cdn.optim izely.com : 1 com ponent, 229.8K (72.2K GZip) connect.facebook.net: 1 com ponent, 8.4K (3.6K GZip) www.googletagmanager.com: 1 com ponent, 40.9K (15.9K GZip) www.facebook.com: 1 com ponent, 0.04K www.googleadservices.com : 1 component, 9.1K (3.5K GZip) rum -static.pingdom .net: 1 component, 7.9K (2.6K GZip) www.google-analytics.com : 1 com ponent, 27.5K (11.4K GZip) cdn.mxpnl.com : 1 component, 52.6K (18.0K GZip) static.hotjar.com: 1 component, 13.0K (2.2K GZip) platform .twitter.com : 1 component, 104.7K (30.7K GZip) googleads .g.doubleclick.net: 1 component, 0.04K api.mixpanel.com : 2 com ponents, 0.0K script.hotjar.com : 1 com ponent, 206.7K (47.0K GZip) www.google.com : 1 com ponent, 0.3K www.google.ca: 1 com ponent, 0.04K

Analyze your site at https://gtmetrix.com

Page 8 of 10

YSlow Recommendations Minify JavaScript and CSS

B (80)

AVG SCORE: 69%

CSS/JS

MEDIUM

B (80)

AVG SCORE: 86%

CONTENT

MEDIUM

There are 2 components that can be minified inline tag #8 inline tag #10

Avoid URL redirects There are 2 redirects

https://googleads .g.doubleclick.net/pagead/viewthroughconversion/974361489/?... redirects to https://www.google.com/ads/user-lis ts/974361489/?... https://www.google.com /ads /user-lists/974361489/?... redirects to https://www.google.ca/ads/user-lis ts/974361489/?...

Use cookie-free domains

AVG SCORE: 45%

COOKIE

LOW

A (100)

AVG SCORE: 100%

CONTENT

HIGH

A (100)

AVG SCORE: 75%

SERVER

HIGH

A (100)

AVG SCORE: 100%

JS

MEDIUM

A (100)

AVG SCORE: 100%

CSS

MEDIUM

A (100)

AVG SCORE: 100%

CSS/JS

MEDIUM

A (100)

AVG SCORE: 100%

JS

MEDIUM

B (85)

There are 3 components that are not cookie-free http://www.studocu.com /ga596849.js http://www.studocu.com /ass ets/js/lang/en/m essages -1466609793.js http://rum -static.pingdom .n...