What powers britannica.com?
Last seen Jun 2026 · 139 technologies across 39 categories
A/B Testing
Google Optimize
since May 2021
Advertising
33Across
since Jan 2022
AdThrive
since Dec 2021
Amazon Advertising
since Jun 2021
AppNexus
since Dec 2021
DoubleClick for Publishers (DFP)
since Apr 2018
Google AdSense
since Jun 2018
Google Publisher Tag
since Feb 2021
ID5
since Oct 2023
LiveIntent
since Oct 2025
Microsoft Advertising
since Feb 2021
OpenX
since Jul 2021
PubMatic
since Dec 2021
Rubicon Project
since Dec 2021
Taboola
since Dec 2023
Tapad
since Dec 2023
TripleLift
since Dec 2021
Twitter Ads
since May 2021
Analytics
Cloudflare Browser Insights
since Jun 2021
comScore
since Dec 2021
Google Analytics
since Jun 2018
Microsoft Clarity
since Jan 2022
Pinterest Conversion Tag
since Jul 2021
Snowplow Analytics
since May 2021
VWO
since Jun 2018
Caching
WP Rocket
since Nov 2020
CDN
Amazon CloudFront
since Oct 2025
Amazon S3
since Oct 2025
cdnjs
since Oct 2021
Cloudflare
since Jun 2019
Google Hosted Libraries
since Feb 2022
jsDelivr
since Jul 2024
CMS
Contentful
since Aug 2019
Cookie compliance
Customer data platform
BlueConic
since Feb 2022
Databases
MySQL
since Aug 2018
Ecommerce
Cart Functionality
since Aug 2020
Shopify
since Aug 2018
Editors
CodeMirror
since Mar 2026
Font scripts
Font Awesome
since Aug 2018
Google Font API
since Apr 2018
Twitter Emoji (Twemoji)
since Aug 2018
Typekit
since Feb 2021
Issue trackers
Cloudflare Network Error Logging
since Feb 2022
Sentry
since May 2025
JavaScript frameworks
JavaScript graphics
Chart.js
since Feb 2019
particles.js
since Feb 2019
JavaScript libraries
Load balancers
Amazon ALB
since Aug 2021
Loyalty & rewards
Rise.ai
since Feb 2022
Marketing automation
HubSpot
since Mar 2026
OptinMonster
since Feb 2022
Miscellaneous
Admiral
since Apr 2022
Babel
since Mar 2020
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Popper
since Apr 2022
PWA
since Aug 2022
RSS
since Dec 2022
SWFObject
since Aug 2018
Swiper Slider
since May 2020
Webpack
since Aug 2018
Operating systems
PaaS
Payment processors
American Express
since Dec 2020
Apple Pay
since May 2023
Mastercard
since Oct 2021
PayPal
since May 2023
Venmo
since May 2023
Visa
since Dec 2020
Performance
Priority Hints
since Aug 2022
Personalisation
Bold Commerce
since Jul 2022
Programming languages
Security
Cloudflare Bot Management
since Oct 2021
Cloudflare Turnstile
since Jan 2025
Confiant
since Jun 2023
HSTS
since Sep 2022
reCAPTCHA
since May 2021
Segmentation
Adobe Audience Manager
since Apr 2022
SEO
Shopify apps
Bold Bundles
since Jul 2022
Tag managers
Google Tag Manager
since Apr 2018
UI frameworks
Video players
Web server extensions
Web servers
Apache Tomcat
since Jun 2018
Widgets
Twitter
since Aug 2018
WordPress plugins
WordPress themes
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
Audience
- 63% phone
- 34% desktop
- 3% tablet
Australia
New Zealand
United States
India
United Kingdom
Canada
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
8.97 / 10 · ranked #417 of all domains
55,557 referring domains · OpenPageRank
Search traffic
90,729,000 est. monthly organic visits (US)
5,444,426 keywords in Google's top 30
Core Web Vitals
| LCP | 2 s |
| INP | 250 ms |
| CLS | 0.05 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.9 MB · 86 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.britannica.com | 37 |
| store.britannica.com | 33 |
| britannica.com | 29 |
| parents.britannica.com | 28 |
| premium.britannica.com | 27 |
| kids.britannica.com | 24 |
| cam.britannica.com | 23 |
| books.britannica.com | 22 |
| professionallearning.britannica.com | 20 |
| advocacy.britannica.com | 19 |
| beyond.britannica.com | 19 |
| corporate.britannica.com | 18 |
| myaccount.britannica.com | 16 |
| curiosity.britannica.com | 14 |
| blogs.britannica.com | 13 |
| subscription.britannica.com | 12 |
| adventure.britannica.com | 8 |
| cdn.britannica.com | 5 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Microsoft ASP.NET Apr 2026
- dropped Funding Choices Mar 2026
- dropped Smart Ad Server Mar 2026
- dropped Infogram Feb 2026
- detected SparkPost Nov 2025
- detected Amazon S3 Oct 2025
- detected LiveIntent Oct 2025
- detected Smart Ad Server Oct 2025
- detected Infogram Sep 2025
- detected Braze Aug 2025
- detected Conversant Consent Tool Aug 2025
- detected Google AdSense Aug 2025
- detected Taboola Aug 2025
- detected Tapad Aug 2025