What powers indexmasterclass.com?
Last seen Aug 2026 · 54 technologies across 29 categories
Advertising
Microsoft Advertising
since May 2025
Analytics
Authentication
NextAuth.js
since Aug 2026
Caching
RackCache
since Aug 2022
CDN
Amazon S3
since Jul 2024
cdnjs
since Oct 2022
Cloudflare
since Aug 2022
Google Hosted Libraries
since Jul 2024
jsDelivr
since Jul 2024
Unpkg
since May 2026
Cookie compliance
iubenda
since Aug 2022
Development
Turbopack
since Apr 2026
Amazon SES
since Jun 2024
Font scripts
Google Font API
since Aug 2022
JavaScript frameworks
JavaScript libraries
LMS
Thinkific
since Oct 2022
Marketing automation
ClickFunnels
since Aug 2022
MailChimp
since Aug 2023
Miscellaneous
PaaS
Amazon Web Services
since Jun 2024
Vercel
since Jul 2024
Page builders
Webflow
since Jul 2024
Payment processors
Performance
Priority Hints
since Jul 2024
Programming languages
Reverse proxies
Envoy
since Jul 2026
Reviews
Trustpilot
since Oct 2022
RUM
New Relic
since Aug 2022
Security
Tag managers
Google Tag Manager
since Aug 2022
UI frameworks
Tailwind CSS
since Aug 2026
Video players
VideoJS
since Aug 2022
Web frameworks
Ruby on Rails
since Oct 2022
Web servers
Phusion Passenger
since Aug 2022
Webmail
Google Workspace
since Feb 2026
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 70% phone
- 27% desktop
- 3% tablet
Germany
Portugal
Ireland
France
Italy
Greece
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.66 / 10 · ranked #20,496,404 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Vercel
- Weight: 0.3 MB · 14 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.indexmasterclass.com | 32 |
| portal.indexmasterclass.com | 23 |
| go.indexmasterclass.com | 21 |
| join.indexmasterclass.com | 20 |
| tax.indexmasterclass.com | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- detected HTTP/3 Aug 2026
- dropped Google Analytics Jul 2026
- detected Contentsquare May 2026
- detected core-js May 2026
- detected Unpkg May 2026
- detected Turbopack Apr 2026
- detected Google Workspace Feb 2026