DomainSpy Analytics and Page Speed Report For: Coursera.org

Content Category:  Reference/Education/Distance Learning

Adult Content: No

Type: Page

Domain Value

$488,950,020.00

About Domain

Join Coursera for free and learn online. Build skills with courses from top universities like Yale, Michigan, Stanford, and leading companies like Google and IBM. Advance your career with degrees, certificates, Specializations, & MOOCs in data sci

95

DS Score

100

Traffic

92

Search

100

Technologies

87

Performance

Similar Sites

Domain DS Rank Domain Value
udemy.com  97 $1,048,875,480.00
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magazine.wharton.upenn.edu  63 $33,746,220.00
alison.com  81 $32,434,020.00
arizona.edu  82 $30,148,200.00
csu.edu.au  55 $651,240.00
educator.com  67 $15,300.00
inst.org  39 $900.00
americanschoolofcorr.com  56 $900.00
internationalsecuritytraining.org  49 $8.95

Traffic

How many visitors are reaching your site, how often they come and how long they stay.

266

Alexa Rank

188,637,960

Monthly Unique Visitors

1,509,103,680

Monthly pageviews

$301,821.00

Revenue Per Day

Top 5 Countries By Traffic

Country Code Rank Page Views Users
IN 55 37.4% 29.8%
US 265 12.8% 12.7%
NG 62 2.3% 2.9%
CA 147 3.3% 2.8%
PK 80 2.7% 2.3%

Performance

Measuring the strength of your website’s page load time

87

Performance

100/100

Google PageSpeed Score

74/100

YSlow Score

1.50

Page Size [megabytes]

3.1

Page Load Time [s]
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

Serve images that are appropriately-sized to save cellular data and improve load time.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

Speed Index shows how quickly the contents of a page are visibly populated.
Click here to learn how to optimize this
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input.
Click here to learn how to optimize this
Large network payloads cost users real money and are highly correlated with long load times.
Click here to learn how to optimize this
URL Size
https://coursera.s3.amazonaws.com/error_pages/coursera-logo.svg 5683
https://www.coursera.org/ 1631
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Click here to learn how to optimize this
Category Time Spent
Other 15.8
Style & Layout 8.59
Script Evaluation 3.09
Rendering 2.49
Parse HTML & CSS 1.41
Script Parsing & Compilation 1.11
Garbage Collection 0.44
First Contentful Paint marks the time at which the first text or image is painted.
Click here to learn how to optimize this
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow).
Click here to learn how to optimize this
Statistic Element Value
Total DOM Elements --- 6
Maximum DOM Depth --- 4
Maximum Child Elements --- 3
Consider using `` to prioritize fetching resources that are currently requested later in page load.
Click here to learn how to optimize this

Overall Saving: 0[ms]

Minifying JavaScript files can reduce payload sizes and script parse time.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

Redirects introduce additional delays before the page can be loaded.
Click here to learn how to optimize this

Overall Saving: 0[ms]

First Meaningful Paint measures when the primary content of a page is visible.
Click here to learn how to optimize this
Time To First Byte identifies the time at which your server sends a response.
Click here to learn how to optimize this

Overall Saving: -182.301[ms]

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Click here to learn how to optimize this

Overall Saving: 0[ms]

Optimized images load faster and consume less cellular data.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

A long cache lifetime can speed up repeat visits to your page.
Click here to learn how to optimize this
URL Cache TTL [duration] Size [kb]
https://coursera.s3.amazonaws.com/error_pages/coursera-logo.svg 0 5683
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task.
Click here to learn how to optimize this
Time to interactive is the amount of time it takes for the page to become fully interactive.
Click here to learn how to optimize this
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy.
Click here to learn how to optimize this
Minifying CSS files can reduce network payload sizes.
Click here to learn how to optimize this

Overall Saving: 0[ms], 0[Bytes]

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Click here to learn how to optimize this
There are 30 static components that are not on CDN.

You can specify CDN hostnames in your preferences. See YSlow FAQ for details.

Components:
  • a.quora.com: 1 component, 39.4K (39.4K GZip)
  • collector-3549.tvsquared.com: 1 component, 20.7K (20.7K GZip)
  • intljs.rmtag.com: 1 component, 79.9K (79.9K GZip)
  • bat.bing.com: 2 components, 26.0K (26.0K GZip)
  • connect.facebook.net: 2 components, 663.1K (493.9K GZip)
  • www.googleadservices.com: 1 component, 29.1K (29.1K GZip)
  • www.googletagmanager.com: 1 component, 231.9K (127.6K GZip)
  • googleads.g.doubleclick.net: 1 component, 1.6K (1.6K GZip)
  • ut.ra.linksynergy.com: 1 component, 0.1K (0.1K GZip)
  • mapixl.com: 1 component, 48.5K (48.5K GZip)
  • tags.rd.linksynergy.com: 1 component, 13.9K
  • loadus.exelator.com: 1 component, 0.2K
  • idsync.rlcdn.com: 1 component, 0.04K
  • act-us.rd.linksynergy.com: 1 component, 1.5K
  • match.adsrvr.org: 1 component, 0.1K
  • insight.adsrvr.org: 13 components, 0.0K
There are 41 static components without a far-future expiration date.
Components:
  • https://a.quora.com/qevents.js
  • https://collector-3549.tvsquared.com/tv2track.js
  • https://px.airpr.com/airpr.js
  • https://intljs.rmtag.com/113717.ct.js
  • https://bat.bing.com/bat.js
  • https://connect.facebook.net/signals/config/946401778754875?v=2.9.18&r=stable
  • https://connect.facebook.net/en_US/fbevents.js
  • https://www.googleadservices.com/pagead/conversion_async.js
  • https://www.google-analytics.com/analytics.js
  • https://www.googletagmanager.com/gtm.js?id=GTM-5JKLVK&l=dataLayer
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/927621030/?random=1589504415495&cv=9&fst=1589504415495&num=1&guid=ON&resp=GooglemKTybQhCsO&u_h=768&u_w=1024&u_ah=768&u_aw=1024&u_cd=32&u_his=1&u_tz=0&u_java=false&u_nplug=0&u_nmime=0>m=2wg561&ig=1&frm=0&url=https%3A%2F%2Fwww.coursera.org%2F&tiba=Coursera%20%7C%20Build%20Skills%20with%20Online%20Courses%20from%20Top%20Institutions&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
  • https://ut.ra.linksynergy.com/jsp?cn=rmuid&ro=0&cb=___rmuid
  • https://mapixl.com/scripts/pixlv2.min.js
  • https://loadus.exelator.com/load/?p=204&g=95&j=d&buid=402b1117-d99f-739d-c80a-b6f45bfe2ec5
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/loreal.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/pandg.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/novartis.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/airbus.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/axisbank.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/accelya.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/tata.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/axa.svg
  • https://d2j5ihb19pt1hq.cloudfront.net/front-page-story/enterprise-partners/sk.svg
  • https://bat.bing.com/action/0?ti=4076177&Ver=2&mid=cadc6b8f-1992-3328-73a8-6d950e9a3d81&sid=22aff636-e8e5-de46-f4ac-5c4bbf80de0c&pi=0&lg=C&sw=1024&sh=768&sc=32&tl=Coursera%20%7C%20Build%20Skills%20with%20Online%20Courses%20from%20Top%20Institutions&p=https%3A%2F%2Fwww.coursera.org%2F&r=<=1204&evt=pageLoad&msclkid=N&sv=1&rn=102403
  • https://idsync.rlcdn.com/458359.gif?partner_uid=402b1117-d99f-739d-c80a-b6f45bfe2ec5
  • https://load77.exelator.com/pixel.gif
  • https://act-us.rd.linksynergy.com/act.php?tag=46248&mt=
  • https://match.adsrvr.org/track/cmf/generic?ttd_pid=1i071nc&ttd_tpi=1
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:lu5o6n1&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:xvzqcyt&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:g1z5r68&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:v0m7zry&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:2ci717b&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:l3crsr0&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:txb1gxu&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:w7q4eq9&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:mr6b2yx&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:h9pukrk&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:3ei9qgu&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:qf3dwly&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:53iuq7j&fmt=3
There are 22 components that are not cookie-free
Components:
  • https://intljs.rmtag.com/113717.ct.js
  • https://bat.bing.com/bat.js
  • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/927621030/?random=1589504415495&cv=9&fst=1589504415495&num=1&guid=ON&resp=GooglemKTybQhCsO&u_h=768&u_w=1024&u_ah=768&u_aw=1024&u_cd=32&u_his=1&u_tz=0&u_java=false&u_nplug=0&u_nmime=0>m=2wg561&ig=1&frm=0&url=https%3A%2F%2Fwww.coursera.org%2F&tiba=Coursera%20%7C%20Build%20Skills%20with%20Online%20Courses%20from%20Top%20Institutions&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
  • https://ut.ra.linksynergy.com/jsp?cn=rmuid&ro=0&cb=___rmuid
  • https://mapixl.com/scripts/pixlv2.min.js
  • https://tags.rd.linksynergy.com/js/6577/?pt=home&catID=homepage
  • https://loadus.exelator.com/load/?p=204&g=95&j=d&buid=402b1117-d99f-739d-c80a-b6f45bfe2ec5
  • https://idsync.rlcdn.com/458359.gif?partner_uid=402b1117-d99f-739d-c80a-b6f45bfe2ec5
  • https://match.adsrvr.org/track/cmf/generic?ttd_pid=1i071nc&ttd_tpi=1
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:lu5o6n1&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:xvzqcyt&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:g1z5r68&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:v0m7zry&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:2ci717b&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:l3crsr0&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:txb1gxu&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:w7q4eq9&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:mr6b2yx&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:h9pukrk&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:3ei9qgu&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:qf3dwly&fmt=3
  • https://insight.adsrvr.org/track/evnt/?adv=pikr9u5&ct=0:53iuq7j&fmt=3
The components are split over more than 4 domains
Components:
  • www.coursera.org: 1 component, 619.9K (19.2K GZip)
  • d3njjcbhbojbot.cloudfront.net: 52 components, 4453.3K (581.3K GZip)
  • a.quora.com: 1 component, 39.4K (39.4K GZip)
  • collector-3549.tvsquared.com: 1 component, 20.7K (20.7K GZip)
  • px.airpr.com: 1 component, 7.4K (7.4K GZip)
  • intljs.rmtag.com: 1 component, 79.9K (79.9K GZip)
  • bat.bing.com: 2 components, 26.0K (26.0K GZip)
  • connect.facebook.net: 2 components, 663.1K (493.9K GZip)
  • www.googleadservices.com: 1 component, 29.1K (29.1K GZip)
  • www.google-analytics.com: 1 component, 45.8K (25.1K GZip)
  • www.googletagmanager.com: 1 component, 231.9K (127.6K GZip)
  • googleads.g.doubleclick.net: 1 component, 1.6K (1.6K GZip)
  • ut.ra.linksynergy.com: 1 component, 0.1K (0.1K GZip)
  • mapixl.com: 1 component, 48.5K (48.5K GZip)
  • tags.rd.linksynergy.com: 2 components, 39.3K
  • loadus.exelator.com: 1 component, 0.2K
  • d2j5ihb19pt1hq.cloudfront.net: 9 components, 35.5K
  • idsync.rlcdn.com: 1 component, 0.04K
  • load77.exelator.com: 1 component, 0.04K
  • act-us.rd.linksynergy.com: 1 component, 1.5K
  • match.adsrvr.org: 1 component, 0.1K
  • insight.adsrvr.org: 13 components, 0.0K
This page has 21 external Javascript scripts. Try combining them into one.
Components:
    There are 3 plain text components that should be sent compressed
    Components:
    • https://tags.rd.linksynergy.com/js/6577/?pt=home&catID=homepage
    • https://tags.rd.linksynergy.com/pix/6577?type=pos&pt=home&catID=homepage&href=https%3A%2F%2Fwww.coursera.org%2F&_rm_fire3p=true
    • https://act-us.rd.linksynergy.com/act.php?tag=46248&mt=
    There is 1 component that can be minified
    Components:
    • inline script tag #1
    Favicon is more than 2000 bytes
    Components:
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            Components:
              Components:
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                                  doc

                                  # of requests: 1
                                  Size: 19229 bytes

                                  css

                                  # of requests: 1
                                  Size: 12782 bytes

                                  font

                                  # of requests: 7
                                  Size: -7 bytes

                                  js

                                  # of requests: 21
                                  Size: 992795 bytes

                                  cssimage

                                  # of requests: 1
                                  Size: 126603 bytes

                                  image

                                  # of requests: 59
                                  Size: 400508 bytes

                                  favicon

                                  # of requests: 5
                                  Size: -5 bytes

                                  iframe

                                  # of requests: 1
                                  Size: 25444 bytes

                                  doc

                                  # of requests: 1
                                  Size: 19229 bytes

                                  js

                                  # of requests: 15
                                  Size: 734275 bytes

                                  image

                                  # of requests: 26
                                  Size: 209 bytes
                                  Type Url Size Response time Gzip Expires
                                  doc https://www.coursera.org/ 619933 643 19229
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                                  font https://d3njjcbhbojbot.cloudfront.net/web/bundles/styleguide/icons/fonts/coursera.v26.eot?#iefix 41286 72 -1 2020/6/14
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                                  js https://a.quora.com/qevents.js 39437 1612 39437 2020/5/15
                                  js https://collector-3549.tvsquared.com/tv2track.js 20759 1671 20759 2020/5/15
                                  js https://px.airpr.com/airpr.js 7406 1612 7406 2020/5/15
                                  js https://intljs.rmtag.com/113717.ct.js 79969 1638 79969 2020/5/16
                                  js https://bat.bing.com/bat.js 26019 1592 26019 2020/5/15
                                  js https://connect.facebook.net/signals/config/946401778754875?v=2.9.18&r=stable 529150 1671 483959 2020/5/15
                                  js https://connect.facebook.net/en_US/fbevents.js 134009 1549 10009 2020/5/15
                                  js https://www.googleadservices.com/pagead/conversion_async.js 29103 1611 29103 2020/5/15
                                  js https://www.google-analytics.com/analytics.js 45892 1501 25147 2020/5/15
                                  js https://www.googletagmanager.com/gtm.js?id=GTM-5JKLVK&l=dataLayer 231913 1292 127696 2020/5/15
                                  js https://d3njjcbhbojbot.cloudfront.net/webapps/r2-builds/front-page/allStyles.40ca7aa350b0ee79d716.js 130 721 130 2020/6/14
                                  js https://d3njjcbhbojbot.cloudfront.net/web/bundles/vendor/Intl.js.v0-1-4/Intl.en-US.js?features=Intl 42549 1029 43266 2020/6/14
                                  js https://d3njjcbhbojbot.cloudfront.net/webapps/r2-builds/front-page/loader.a4c15889a6262cede6e7.js 129387 730 11107 2020/6/14
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                                  js https://ut.ra.linksynergy.com/jsp?cn=rmuid&ro=0&cb=___rmuid 131 1810 131
                                  js https://mapixl.com/scripts/pixlv2.min.js 48527 1760 48530
                                  js https://tags.rd.linksynergy.com/js/6577/?pt=home&catID=homepage 13913 1922 --- 2020/6/14
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                                  cssimage https://d3njjcbhbojbot.cloudfront.net/api/utilities/v1/imageproxy/https://coursera_assets.s3.amazonaws.com/front-page-story/hero-banner/robot-girl.jpg?auto=format%2Ccompress&dpr=1 121821 1034 126603 2030/5/13
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                                  Detected Technologies

                                  React
                                  React

                                  SEO Details

                                  How well your site increases the quality and quantity of search engine results through organic traffic.

                                  92

                                  Search

                                  92

                                  Domain Authority

                                  79,449,541

                                  Unique Domain Links

                                  2,750,324

                                  Outgong Links

                                  10,012,926

                                  External Links

                                  1

                                  Spam Score

                                  Top Pages

                                  Ranking the most visited pages on your website.

                                  # Link
                                  1 www.coursera.org/
                                  2 www.coursera.org/learn/machine-learning
                                  3 www.coursera.org/learn/learning-how-to-learn
                                  4 www.coursera.org/courses
                                  5 www.coursera.org/learn/the-science-of-well-being
                                  6 www.coursera.org/specializations/deep-learning
                                  7 www.coursera.org/learn/cryptocurrency
                                  8 www.coursera.org/course/ml
                                  9 www.coursera.org/course/progfun
                                  10 www.coursera.org/course/crypto

                                  Webserver Info

                                  Virginia, Dulles, United States Of America, 20101
                                  IP: 99.84.222.121

                                  Location

                                  38.9517

                                  Latitude

                                  -77.4481

                                  Longitude

                                  Whois

                                  Created n/a
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