What powers 
klassroom.co?
Last seen Aug 2026 · 45 technologies across 25 categories
Analytics
CDN
CMS
Databases
Documentation
Ecommerce
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Mobile frameworks
Operating systems
Page builders
Payment processors
Programming languages
Security
Tag managers
UI frameworks
Video players
Web servers
Webmail
Widgets
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 64% desktop
- 36% phone
France
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.83 / 10 · ranked #700,383 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 2.1 MB · 86 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on MAGICRETAIL (77.87.108.241)
- DNS: IBM NS1
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Gandi, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 168,038, 7 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| es.klassroom.co | 23 |
| klassroom.co | 23 |
| ru.klassroom.co | 23 |
| es.web.klassroom.co | 18 |
| web.klassroom.co | 18 |
| kedparis.klassroom.co | 16 |
Full technology history →
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