What powers kolosseum.io?
Last seen Oct 2026 · 21 technologies across 13 categories
Analytics
CDN
Development
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
Webmail
AI Crawlers
Restricts 11 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Restricted
- Bytespider Restricted
- CCBot Restricted
- ClaudeBot Restricted
- Google-Extended Restricted
- GPTBot Restricted
Search and AI assistants
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- ChatGPT-User Restricted
- Claude-User Restricted
The other 22 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
11 of 33 AI crawlers restricted
Standards: llms.txt
Open Page Rank
0.44 / 10 · ranked #30,509,180 of all domains
1 referring domains · OpenPageRank
Page
- Language: English
- CDN: Vercel
- Weight: 0.6 MB · 46 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 65,306,969, 3 hosts
- Verified with: DocuSign, Google, Meta Business, Microsoft 365, OneTrust
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected RxJS Oct 2026