What powers cti.org?
Last seen Oct 2026 · 14 technologies across 10 categories
Analytics
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Security
Web frameworks
Webmail
AI Crawlers
Blocks 28 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- AI2Bot Blocked
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- img2dataset Blocked
- meta-externalagent Blocked
- PanguBot Blocked
- SBIntuitionsBot Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- Applebot Blocked
- DuckAssistBot Blocked
- PerplexityBot Blocked
- PetalBot Blocked
- YouBot Blocked
User-request fetchers
- GoogleAgent-Mariner Blocked
- meta-externalfetcher Blocked
- MistralAI-User Blocked
- Perplexity-User Blocked
The other 5 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Nov 2026 claude-searchbot removed from robots.txt
- Nov 2026 oai-searchbot removed from robots.txt
- Sep 2026 claude-searchbot added to robots.txt
- Sep 2026 google-cloudvertexbot added to robots.txt
- Sep 2026 googleagent-mariner added to robots.txt
- Sep 2026 mistralai-user added to robots.txt
AI Crawlers
28 of 33 AI crawlers blocked
Audience
- 72% desktop
- 28% phone
India
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.29 / 10 · ranked #436,115 of all domains
77 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 2.6 MB · 95 requests
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Cooling Technology Institute
- Founded: 1950
- Sector: business and professional associations, unions
From Wikidata (CC0).
Infrastructure
- Registered Jan 1996 (30 years) via Network Solutions, LLC, renews Jan 2030
- Hosted on Cloudflare (172.66.40.254, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 704,400, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Rocket Loader Oct 2026
- detected HTTP/3 Oct 2026