What powers the4book.com?
Last seen Jun 2026 · 25 technologies across 17 categories
A/B Testing
Intelligems
since Dec 2025
Analytics
Google Analytics
since Dec 2025
Microsoft Clarity
since Mar 2026
CDN
Cloudflare
since Dec 2025
Ecommerce
Cart Functionality
since May 2026
Shopify
since Dec 2025
Font scripts
Google Font API
since Jun 2026
Form builders
Klaviyo Forms
since Dec 2025
Hosting
GoDaddy
since Dec 2025
Issue trackers
Sentry
since Dec 2025
JavaScript frameworks
React
since Dec 2025
JavaScript libraries
Marketing automation
Klaviyo
since Dec 2025
Miscellaneous
HTTP/3
since Dec 2025
Open Graph
since Dec 2025
Payment processors
Performance
Priority Hints
since Dec 2025
Security
HSTS
since Dec 2025
UI frameworks
Tailwind CSS
since Dec 2025
Webmail
Google Workspace
since Dec 2025
Audience
- 72% phone
- 28% desktop
United Kingdom
Canada
United States
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.28 / 10 · ranked #57,825,210 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 16.4 MB · 411 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Google Font API Jun 2026
- detected Cart Functionality May 2026
- detected Microsoft Clarity Mar 2026