What powers caliber.io?
Last seen Aug 2026 · 27 technologies across 14 categories
Analytics
CDN
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Marketing automation
Miscellaneous
PaaS
Page builders
Security
Surveys
Tag managers
Video players
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Aug 2026.
Training crawlers
- ClaudeBot Allowed
- GPTBot Allowed
The other 31 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.50 / 10 · ranked #6,538,835 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- CDN: Cloudflare
- Weight: 3.8 MB · 142 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Turnstile Aug 2026
- detected Qualaroo Aug 2026