What powers cryptschool.org?
Last seen Oct 2026 · 32 technologies across 16 categories
Analytics
Google Analytics
since Nov 2019
Hotjar
since Dec 2020
CDN
cdnjs
since Aug 2024
Cloudflare
since Nov 2023
Google Hosted Libraries
since Aug 2024
jsDelivr
since Aug 2024
Font scripts
Font Awesome
since Aug 2024
Google Font API
since Aug 2024
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Aug 2024
PWA
since Aug 2024
Performance
Cloudflare Rocket Loader
since Nov 2023
Programming languages
Security
Tag managers
Google Tag Manager
since Nov 2019
UI frameworks
Bootstrap
since Aug 2024
Video players
YouTube
since Nov 2020
Web frameworks
CodeIgniter
since Aug 2024
Microsoft ASP.NET
since Nov 2019
Web servers
Apache HTTP Server
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
Widgets
SoundCloud
since Feb 2022
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 79% phone
- 21% desktop
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.94 / 10 · ranked #1,695,748 of all domains
30 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United Kingdom)
- Weight: 28.4 MB · 81 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- The Crypt School
- Founded: 1539
- Country: United Kingdom
From Wikidata (CC0).
Infrastructure
- Hosted on 20i (185.151.30.122, IPv6)
- DNS: netim.net
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed
- SSL: SSL.com, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 7,044,699, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| cryptschool.org | 21 |
| www.cryptschool.org | 15 |