What powers calib.io?
Last seen Aug 2026 · 16 technologies across 10 categories
Analytics
Google Analytics
since Dec 2020
CDN
Cloudflare
since Dec 2020
Ecommerce
Cart Functionality
since Dec 2020
Shopify
since Dec 2020
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Payment processors
American Express
since Apr 2025
Klarna Checkout
since Jul 2026
Mastercard
since Apr 2025
Visa
since Apr 2025
Performance
Priority Hints
since Feb 2023
Security
HSTS
since Sep 2022
Surveys
HulkApps Form Builder
since Feb 2023
Webmail
Google Workspace
since Feb 2023
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 Aug 2026.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 86% desktop
- 14% phone
United States
South Korea
India
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.16 / 10 · ranked #1,324,147 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.6 MB · 229 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Klarna Checkout Jul 2026
- dropped Exemptify Jun 2026