What powers kleartextbook.com?
Last seen Jun 2026 · 25 technologies across 14 categories
Advertising
Google AdSense
since Sep 2021
Analytics
Cloudflare Browser Insights
since Oct 2025
Google Analytics
since Jun 2018
Authentication
Facebook Login
since Jul 2021
CDN
Cloudflare
since Apr 2018
CMS
Databases
MySQL
since Jun 2018
Font scripts
Google Font API
since Feb 2020
JavaScript Libraries
Lightbox
since Apr 2018
SoundManager
since Jun 2018
Miscellaneous
Programming languages
PHP
since Jun 2018
Security
reCAPTCHA
since Aug 2023
Tag managers
Google Tag Manager
since Jun 2018
Widgets
Twitter
since Jun 2018
WordPress plugins
Audience
- 80% desktop
- 20% phone
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.54 / 10 · ranked #6,147,804 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.8 MB · 73 requests
- Structured data: JSON-LD, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| member.kleartextbook.com | 20 |
| kleartextbook.com | 18 |
| www.kleartextbook.com | 12 |
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Oct 2025