DomainSpy Analytics and Page Speed Report For: Edx.org

Content Category:  Reference/Education/Distance Learning/Online Courses/E-learning Portals

Adult Content: No

Type: Page

Domain Value

$228,577,140.00

About Domain

Access 2000 free online courses from 140 leading institutions worldwide. Gain new skills and earn a certificate of completion. Join today.

91

DS Score

100

Traffic

90

Search

90

Technologies

82

Performance

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alison.com  81 $32,434,020.00
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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.

569

Alexa Rank

88,185,750

Monthly Unique Visitors

705,486,000

Monthly pageviews

$141,097.00

Revenue Per Day

Top 5 Countries By Traffic

Country Code Rank Page Views Users
IN 211 22.8% 21.8%
US 675 12.7% 13.9%
FR 327 3.7% 4.3%
CA 262 4.2% 4.1%
NG 162 3.4% 3.0%

Performance

Measuring the strength of your website’s page load time

82

Performance

89/100

Google PageSpeed Score

74/100

YSlow Score

2.86

Page Size [megabytes]

1.4

Page Load Time [s]
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://ak.sail-horizon.com/onsite/personalize.v0.0.4.min.js 0 40498
https://p.adsymptotic.com/d/px/?_pid=16218&_psign=0aa5badf92527f7732e22463d6fa4dbc&coopa=0&gdpr=0&gdpr_consent=&_puuid=9d3266e8-4bfd-4fb2-b20b-39398ee02407&_expected_cookie=1f827c1c6ef126eada83e206abe1bcb5 0 759
https://app.link/_r?sdk=web2.53.1&branch_key=key_live_mfvq10qtrE7sjWpz2NHVNlnfrqamuY8u&callback=branch_callback__0 0 746
https://js.hs-scripts.com/4982103.js 60000 1240
https://cdn.optimizely.com/js/1743970571.js 120000 96907
https://cdn.segment.com/analytics.js/v1/8fncv13bt5/analytics.min.js 300000 77425
https://cdn.branch.io/branch-latest.min.js 300000 23680
https://js.hs-analytics.net/analytics/1590456600000/4982103.js 300000 20244
https://js.hs-banner.com/4982103.js 300000 7912
https://js.hsadspixel.net/fb.js 600000 2764
https://connect.facebook.net/signals/config/1601661033380488?v=next&r=canary 1200000 132340
https://connect.facebook.net/en_US/fbevents.js 1200000 40836
https://www.dwin1.com/6798.js 3600000 6490
https://www.google-analytics.com/plugins/ua/linkid.js 3600000 1495
https://www.google-analytics.com/analytics.js 7200000 19103
https://js-agent.newrelic.com/nr-768.min.js 7200000 9254
https://prod-edx-edxapp-assets.edx-cdn.org/static/images/app/app_store_badge_135x40.d0558d910630.svg 14400000 5456
https://prod-edx-edxapp-assets.edx-cdn.org/static/images/app/google_play_badge_45.6ea466e328da.png 14400000 4968
https://prod-edx-edxapp-assets.edx-cdn.org/static/edx.org/css/lms-footer-edx.e3ebc3f9626d.css 14400000 4671
https://prod-edx-edxapp-assets.edx-cdn.org/static/edx.org/images/logo-footer.fde85fe42f6b.png 14400000 3950
https://prod-edx-edxapp-assets.edx-cdn.org/static/js/footer-edx.dca113193668.js?_=1590456741312 14400000 1201
https://snap.licdn.com/li.lms-analytics/insight.min.js 63849000 1890
https://www.edx.org/sites/all/themes/atedx/fonts/fontawesome-webfont.woff2?v=4.7.0 86400000 77859
https://www.edx.org/sites/all/themes/atedx/images/headers/homepage-en/1179px.jpg 86400000 28631
https://www.edx.org/sites/all/themes/atedx/images/headers/homepage-en/539px.jpg 86400000 18534
https://www.edx.org/sites/all/themes/atedx/scripts/dist/site_header.57b5215a1861ef8380ab.js?qalake 2592000000 123963
https://www.edx.org/sites/all/themes/atedx/scripts/dist/home.3be2291922d05d5867fd.js?qalake 2592000000 103219
https://www.edx.org/sites/default/files/css/css_8PZDPhxXbON4165oW6zi0WE3IYizRXf8qreBQd3x9GM.css 2592000000 71805
https://www.edx.org/sites/all/themes/atedx/scripts/dist/vendor.cf0f230ca1ec42dc02a8.js?qalake 2592000000 45406
https://www.edx.org/sites/default/files/js/js_BS7lvIetxt5p0fnn8_eCWnMeaRrDtMr6wniCIIuVxSw.js 2592000000 41712
https://www.edx.org/sites/default/files/school/image/banner/georgetown_logo_200x101_0.png 2592000000 16434
https://www.edx.org/sites/default/files/school/image/logo/sorbonne-200x101.png 2592000000 14353
https://www.edx.org/sites/default/files/js/js_ED5CXIEwhB9PDdZv7AOYZUbFBi9KCcPctIWjP4xzd14.js 2592000000 10925
https://www.edx.org/sites/default/files/school/image/banner/anu_logo_200x101_0.png 2592000000 10022
https://www.edx.org/sites/all/themes/atedx/scripts/vendor/common/backbone-min.js?qalake 2592000000 7160
https://www.edx.org/sites/default/files/school/image/logo/usmx_logo_200x101_0.png 2592000000 6680
https://www.edx.org/sites/default/files/school/image/banner/ut_logo_200x101_0.png 2592000000 6393
https://www.edx.org/sites/default/files/school/image/logo/adelaide-200x101.png 2592000000 6248
https://www.edx.org/sites/default/files/school/image/logo/hkpolyu_upload_02052018_200x101.png 2592000000 6138
https://www.edx.org/sites/default/files/js/js_OWqT85P6-BA03fclrtuha8brsVbYzL0dixQfV1mVyxc.js 2592000000 5512
https://www.edx.org/sites/default/files/school/image/logo/ubcx-200x101_0.jpg 2592000000 4159
https://www.edx.org/sites/default/files/school/image/banner/delft_logo_200x101_0.png 2592000000 3987
https://www.edx.org/sites/default/files/school/image/logo/rwthx-logo-200x101a.png 2592000000 3643
https://www.edx.org/sites/default/files/school/image/banner/berkeley_logo_200x101_0.png 2592000000 3406
https://www.edx.org/sites/default/files/school/image/logo/uq_logo_purple_200x101px.png 2592000000 3351
https://www.edx.org/sites/default/files/school/image/logo/curtin-university-200x101.png 2592000000 3335
https://www.edx.org/sites/default/files/school/image/banner/harvard_logo_200x101_0.png 2592000000 3056
https://www.edx.org/sites/default/files/css/css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css 2592000000 2967
https://www.edx.org/sites/default/files/css/css_mktzIRd5CRE-97qJhrh-LyZqgbhTe9MZCqn-bCpDQ_g.css 2592000000 2410
https://www.edx.org/sites/all/themes/atedx/scripts/dist/manifest.d86f4cf5c84f146a1160.js?qalake 2592000000 2365
https://www.edx.org/sites/default/files/theme/edx-logo-header.png 2592000000 2035
https://www.edx.org/sites/default/files/school/image/banner/mit_logo_200x101_0.png 2592000000 1989
https://www.edx.org/sites/default/files/school/image/banner/boston_logo_200x101_0_0.png 2592000000 1939
https://www.edx.org/sites/all/themes/atedx/scripts/dist/15.9e2f356a3cc424fdbc5a.js 2592000000 1514
https://www.edx.org/sites/default/files/js/js_asIaD16FD7uotC0-R0mY4TYtcYoTYtA9nYyVZoshZC8.js 2592000000 1257
https://www.edx.org/sites/default/files/css/css_vCUzQp3N37rfxD4aTUoEEwapKD-KAd7YlMV9XmochIo.css 2592000000 1104
https://www.edx.org/sites/all/themes/atedx/scripts/dist/base_footer.b80fdf8878ea70a9797c.js?qalake 2592000000 907
Consider using `` to prioritize fetching resources that are currently requested later in page load.
Click here to learn how to optimize this
URL Potential Savings
https://www.edx.org/sites/all/themes/atedx/fonts/fontawesome-webfont.woff2?v=4.7.0 920

Overall Saving: 920[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
URL Size [Bytes] Potential Savings
https://www.edx.org/sites/default/files/css/css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css 2967 70
https://www.edx.org/sites/default/files/css/css_mktzIRd5CRE-97qJhrh-LyZqgbhTe9MZCqn-bCpDQ_g.css 2410 150
https://www.edx.org/sites/default/files/css/css_8PZDPhxXbON4165oW6zi0WE3IYizRXf8qreBQd3x9GM.css 71805 350
https://www.edx.org/sites/default/files/css/css_vCUzQp3N37rfxD4aTUoEEwapKD-KAd7YlMV9XmochIo.css 1104 150
https://www.edx.org/sites/default/files/js/js_BS7lvIetxt5p0fnn8_eCWnMeaRrDtMr6wniCIIuVxSw.js 41712 270
https://cdn.optimizely.com/js/1743970571.js 96907 430
https://www.edx.org/sites/default/files/js/js_OWqT85P6-BA03fclrtuha8brsVbYzL0dixQfV1mVyxc.js 5512 150
https://www.edx.org/sites/default/files/js/js_ED5CXIEwhB9PDdZv7AOYZUbFBi9KCcPctIWjP4xzd14.js 10925 110

Overall Saving: 786[ms]

First Meaningful Paint measures when the primary content of a page is visible.
Click here to learn how to optimize this
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
Speed Index shows how quickly the contents of a page are visibly populated.
Click here to learn how to optimize this
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
URL Size [Bytes] Potential Savings [Bytes]
https://www.edx.org/sites/default/files/css/css_8PZDPhxXbON4165oW6zi0WE3IYizRXf8qreBQd3x9GM.css 71805 68256

Overall Saving: 160[ms], 68256[Bytes]

First Contentful Paint marks the time at which the first text or image is painted.
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
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
Script Evaluation 872.61
Style & Layout 189.52
Other 170.04
Script Parsing & Compilation 94.44
Parse HTML & CSS 40.54
Rendering 40.36
Garbage Collection 28.27
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
URL Total CPU Time Script Evaluation Script Parse
Other 379.74 20.03 2.27
https://cdn.optimizely.com/js/1743970571.js 212.12 200.58 11.19
https://www.edx.org/sites/default/files/js/js_OWqT85P6-BA03fclrtuha8brsVbYzL0dixQfV1mVyxc.js 147.55 113.46 2.22
https://cdn.segment.com/analytics.js/v1/8fncv13bt5/analytics.min.js 137.03 123.97 12.49
https://www.edx.org/sites/all/themes/atedx/scripts/dist/site_header.57b5215a1861ef8380ab.js?qalake 116.84 103.75 7.71
https://www.edx.org/sites/all/themes/atedx/scripts/dist/home.3be2291922d05d5867fd.js?qalake 94.04 55.71 6.12
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
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]

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://connect.facebook.net/signals/config/1601661033380488?v=next&r=canary 132340
https://www.edx.org/sites/all/themes/atedx/scripts/dist/site_header.57b5215a1861ef8380ab.js?qalake 123963
https://www.edx.org/sites/all/themes/atedx/scripts/dist/home.3be2291922d05d5867fd.js?qalake 103219
https://cdn.optimizely.com/js/1743970571.js 96907
https://www.edx.org/sites/all/themes/atedx/fonts/fontawesome-webfont.woff2?v=4.7.0 77859
https://cdn.segment.com/analytics.js/v1/8fncv13bt5/analytics.min.js 77425
https://www.edx.org/sites/default/files/css/css_8PZDPhxXbON4165oW6zi0WE3IYizRXf8qreBQd3x9GM.css 71805
https://cl.qualaroo.com/ki.js/59450/dj_qoo.js 48992
https://www.edx.org/sites/all/themes/atedx/scripts/dist/vendor.cf0f230ca1ec42dc02a8.js?qalake 45406
https://www.googletagmanager.com/gtm.js?id=GTM-PLVRLF&l=dataLayer 44896
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
URL Size [Bytes] Potential Savings [Bytes]
https://www.edx.org/sites/default/files/school/image/banner/georgetown_logo_200x101_0.png 15654 9978

Overall Saving: 0[ms], 9978[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 --- 442
Maximum DOM Depth --- 14
Maximum Child Elements --- 19
Minifying JavaScript files can reduce payload sizes and script parse time.
Click here to learn how to optimize this
URL Size [Bytes] Potential Savings [Bytes]
https://www.edx.org/sites/default/files/js/js_BS7lvIetxt5p0fnn8_eCWnMeaRrDtMr6wniCIIuVxSw.js 41712 6142

Overall Saving: 0[ms], 6142[Bytes]

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

Overall Saving: 0[ms]

Time To First Byte identifies the time at which your server sends a response.
Click here to learn how to optimize this

Overall Saving: -523.437[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]

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]

This page has 34 external Javascript scripts. Try combining them into one. This page has 6 external stylesheets. Try combining them into one.
Components:
    There are 53 static components that are not on CDN.

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

    Components:
    • www.edx.org: 33 components, 1748.4K (1227.7K GZip)
    • fonts.googleapis.com: 1 component, 1.2K (1.2K GZip)
    • prod-edx-edxapp-assets.edx-cdn.org: 5 components, 42.8K (35.0K GZip)
    • www.googleadservices.com: 1 component, 29.1K (29.1K GZip)
    • bam.nr-data.net: 1 component, 0.0K
    • connect.facebook.net: 2 components, 663.1K (283.4K GZip)
    • js-agent.newrelic.com: 1 component, 22.6K (22.6K GZip)
    • cl.qualaroo.com: 2 components, 143.0K (9.9K GZip)
    • js.hs-analytics.net: 1 component, 66.9K (66.9K GZip)
    • js.hs-banner.com: 1 component, 23.3K (23.3K GZip)
    • www.googletagmanager.com: 2 components, 84.5K (3.9K GZip)
    • cdn.optimizely.com: 1 component, 331.5K (331.5K GZip)
    • googleads.g.doubleclick.net: 1 component, 1.6K (1.6K GZip)
    • js.hs-scripts.com: 1 component, 1.1K (1.1K GZip)
    There are 29 static components without a far-future expiration date.
    Components:
    • https://fonts.googleapis.com/css?family=Open+Sans:300,400,400i,600,700
    • https://prod-edx-edxapp-assets.edx-cdn.org/static/edx.org/css/lms-footer-edx.e3ebc3f9626d.css
    • https://www.googleadservices.com/pagead/conversion_async.js
    • https://snap.licdn.com/li.lms-analytics/insight.min.js
    • http://bam.nr-data.net/1/1beac94c95?a=12274678&sa=1&pl=1590456750011&v=768.2acc9fa&t=Unnamed%20Transaction&be=255&fe=830&dc=459&f=%5B%22err%22,%22xhr%22%5D&perf=%7B%22timing%22:%7B%22of%22:1590456750011,%22n%22:0,%22dl%22:42,%22di%22:702,%22ds%22:702,%22de%22:716,%22dc%22:1075,%22l%22:1085,%22le%22:1112,%22f%22:0,%22dn%22:0,%22dne%22:0,%22c%22:0,%22ce%22:0,%22rq%22:0,%22rp%22:0,%22rpe%22:47%7D,%22navigation%22:%7B%7D%7D&jsonp=NREUM.setToken
    • https://connect.facebook.net/signals/config/1601661033380488?v=2.9.18&r=stable
    • https://connect.facebook.net/en_US/fbevents.js
    • https://www.dwin1.com/6798.js
    • http://js-agent.newrelic.com/nr-768.min.js
    • https://cl.qualaroo.com/ki.js/59450/dj_qoo.js
    • https://cl.qualaroo.com/ki.js/59450/dj_.js
    • http://js.hs-analytics.net/analytics/1590456600000/4982103.js
    • https://js.hsadspixel.net/fb.js
    • https://js.hs-banner.com/4982103.js
    • http://www.google-analytics.com/plugins/ua/linkid.js
    • http://www.googletagmanager.com/gtm.js?id=GTM-PLVRLF&l=dataLayer
    • http://www.google-analytics.com/analytics.js
    • https://cdn.branch.io/branch-latest.min.js
    • http://cdn.segment.com/analytics.js/v1/8fncv13bt5/analytics.min.js
    • https://cdn.optimizely.com/js/1743970571.js
    • https://www.googletagmanager.com/gtag/js?id=AW-796433197
    • https://googleads.g.doubleclick.net/pagead/viewthroughconversion/796433197/?random=1590456751379&cv=9&fst=1590456751379&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&eid=376635470&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=2oa5e1&ig=1&data=event%3Dgtag.config&frm=0&url=http%3A%2F%2Fwww.edx.org%2F&tiba=edX%20%7C%20Free%20Online%20Courses%20by%20Harvard%2C%20MIT%2C%20%26%20more&hn=www.googleadservices.com&async=1&rfmt=3&fmt=4
    • https://prod-edx-edxapp-assets.edx-cdn.org/static/js/footer-edx.dca113193668.js
    • http://js.hs-scripts.com/4982103.js
    • http://ak.sail-horizon.com/onsite/personalize.v0.0.4.min.js
    • http://www.edx.org/sites/all/themes/atedx/images/headers/homepage-en/539px.jpg
    • https://prod-edx-edxapp-assets.edx-cdn.org/static/edx.org/images/logo-footer.fde85fe42f6b.png
    • https://prod-edx-edxapp-assets.edx-cdn.org/static/images/app/app_store_badge_135x40.d0558d910630.svg
    • https://prod-edx-edxapp-assets.edx-cdn.org/static/images/app/google_play_badge_45.6ea466e328da.png
    The components are split over more than 4 domains
    Components:
    • www.edx.org: 35 components, 1767.4K (1246.0K GZip)
    • fonts.googleapis.com: 1 component, 1.2K (1.2K GZip)
    • fonts.gstatic.com: 5 components, 137.2K (121.4K GZip)
    • prod-edx-edxapp-assets.edx-cdn.org: 5 components, 42.8K (35.0K GZip)
    • www.googleadservices.com: 1 component, 29.1K (29.1K GZip)
    • snap.licdn.com: 1 component, 3.5K (3.5K GZip)
    • bam.nr-data.net: 1 component, 0.0K
    • connect.facebook.net: 2 components, 663.1K (283.4K GZip)
    • www.dwin1.com: 1 component, 11.4K (11.4K GZip)
    • js-agent.newrelic.com: 1 component, 22.6K (22.6K GZip)
    • cl.qualaroo.com: 2 components, 143.0K (9.9K GZip)
    • js.hs-analytics.net: 1 component, 66.9K (66.9K GZip)
    • js.hsadspixel.net: 1 component, 4.2K (4.2K GZip)
    • js.hs-banner.com: 1 component, 23.3K (23.3K GZip)
    • www.google-analytics.com: 2 components, 47.4K (45.8K GZip)
    • www.googletagmanager.com: 2 components, 84.5K (3.9K GZip)
    • cdn.branch.io: 1 component, 78.3K (78.3K GZip)
    • cdn.segment.com: 1 component, 411.6K (411.6K GZip)
    • cdn.optimizely.com: 1 component, 331.5K (331.5K GZip)
    • googleads.g.doubleclick.net: 1 component, 1.6K (1.6K GZip)
    • js.hs-scripts.com: 1 component, 1.1K (1.1K GZip)
    • ak.sail-horizon.com: 1 component, 116.8K (116.8K GZip)
    • a1706490390.cdn.optimizely.com: 1 component, 1.4K (1.4K GZip)
    • dntcl.qualaroo.com: 1 component, 0.3K (0.3K GZip)
    There are 9 components that are not cookie-free
    Components:
    • https://prod-edx-edxapp-assets.edx-cdn.org/static/edx.org/css/lms-footer-edx.e3ebc3f9626d.css
    • http://js.hs-analytics.net/analytics/1590456600000/4982103.js
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                                  PHP
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                                  SEO Details

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

                                  90

                                  Search

                                  90

                                  Domain Authority

                                  10,536,923

                                  Unique Domain Links

                                  2,999,156

                                  Outgong Links

                                  9,989,596

                                  External Links

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                                  Spam Score

                                  Top Pages

                                  Ranking the most visited pages on your website.

                                  # Link
                                  1 www.edx.org/
                                  2 www.edx.org/school/harvardx
                                  3 www.edx.org/course/introduction-computer-science-harvardx-cs50x
                                  4 www.edx.org/course
                                  5 www.edx.org/es
                                  6 www.edx.org/schools-partners
                                  7 www.edx.org/course/linuxfoundationx/linuxfoundationx-lfs101x-introduction-1621
                                  8 www.edx.org/school/mitx
                                  9 www.edx.org/courses
                                  10 www.edx.org/course/toeflr-test-preparation-insiders-guide-etsx-toeflx

                                  Webserver Info

                                  California, San Francisco, United States Of America, 94107
                                  IP: 104.16.179.84

                                  Location

                                  37.7757

                                  Latitude

                                  -122.395

                                  Longitude

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