What powers cal.id?
Last seen Jun 2026 · 27 technologies across 18 categories
Advertising
Twitter Ads
since Dec 2025
Analytics
Authentication
Google Sign-in
since Mar 2026
CDN
cdnjs
since Aug 2025
Cloudflare
since Jan 2025
CMS
Framer Sites
since Aug 2025
Sendgrid
since Jan 2026
Font scripts
Google Font API
since Sep 2024
JavaScript frameworks
React
since Jan 2024
JavaScript libraries
Live chat
Chatwoot
since Oct 2025
Crisp Live Chat
since Dec 2025
Miscellaneous
Operating systems
Ubuntu
since Jun 2025
Performance
Priority Hints
since Aug 2025
Security
Cloudflare Bot Management
since Jan 2025
HSTS
since Jan 2024
Tag managers
Google Tag Manager
since Jan 2025
UI frameworks
Tailwind CSS
since Jan 2024
Video players
YouTube
since Aug 2025
Web servers
Audience
- 53% phone
- 47% desktop
India
Nigeria
United Kingdom
Philippines
Pakistan
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.10 / 10 · ranked #504,229 of all domains
45 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 275 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 1.6 MB · 92 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| cal.id | 26 |
| app.cal.id | 25 |
Full technology history →
Report an incorrect detection
Recent changes
- detected PostHog Apr 2026
- detected Google Sign-in Mar 2026
- detected Linkedin Insight Tag Jan 2026
- dropped PayPal Jan 2026
- detected Sendgrid Jan 2026
- dropped Swiper Jan 2026
- dropped Unpkg Jan 2026
- detected Crisp Live Chat Dec 2025
- detected Twitter Ads Dec 2025
- detected Product Hunt Nov 2025
- dropped Amazon S3 Oct 2025
- dropped Amazon Web Services Oct 2025
- dropped Amplitude Oct 2025
- detected Chatwoot Oct 2025
- dropped FirstPromoter Oct 2025
- dropped Linkedin Insight Tag Oct 2025
- dropped Microsoft Clarity Oct 2025
- dropped Next.js Oct 2025
- dropped Node.js Oct 2025
- dropped PWA Oct 2025
- dropped Quora Pixel Oct 2025
- dropped Radix UI Oct 2025
- dropped Webpack Oct 2025
- dropped Vercel Sep 2025
- detected cdnjs Aug 2025
- detected Font Awesome Aug 2025
- detected Framer Sites Aug 2025
- detected HTTP/3 Aug 2025
- detected Open Graph Aug 2025
- detected PayPal Aug 2025
- detected Priority Hints Aug 2025
- detected Swiper Aug 2025
- detected Unpkg Aug 2025
- detected YouTube Aug 2025