What powers 
kt.academy?
Last seen Oct 2026 · 25 technologies across 12 categories
Analytics
Authentication
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
Security
Tag managers
UI frameworks
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 65% desktop
- 35% phone
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.03 / 10 · ranked #544,986 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0.15 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 4.4 MB · 107 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Oct 2018 (8 years) via OVH SAS, renews Oct 2027
- Hosted on Cloudflare (104.21.21.189, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 868,730, 6 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kt.academy | 20 |
| cheat-sheet.kt.academy | 9 |
| game.kt.academy | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped HSTS May 2026
- dropped Vercel May 2026
- detected Cloudflare Apr 2026
- detected Cloudflare Browser Insights Apr 2026
- detected HTTP/3 Apr 2026
- dropped cdnjs Feb 2026
- dropped Cloudflare Feb 2026
- dropped Cloudflare Bot Management Feb 2026
- dropped KaTeX Feb 2026
- dropped Linkedin Insight Tag Feb 2026