What powers open-books.org?
Last seen Aug 2026 · 36 technologies across 19 categories
Analytics
Google Analytics
since Jan 2019
Matomo Analytics
since Aug 2020
CDN
Cloudflare
since Jan 2019
CMS
WordPress
since Jan 2019
CRM
Neon CRM
since Feb 2023
Databases
MySQL
since Jan 2019
Ecommerce
Cart Functionality
since Aug 2020
Font scripts
Font Awesome
since Feb 2019
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript graphics
particles.js
since Aug 2022
JavaScript libraries
Miscellaneous
PaaS
WP Engine
since May 2019
Programming languages
PHP
since Jan 2019
Security
Cloudflare Bot Management
since Dec 2025
reCAPTCHA
since Feb 2019
Translation
Weglot
since Nov 2019
UI frameworks
Animate.css
since Feb 2019
Webmail
Google Workspace
since Aug 2022
Widgets
Facebook
since Jan 2019
WordPress plugins
The Events Calendar
since Feb 2022
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 56% desktop
- 44% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #352,341 of all domains
138 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 4.1 MB · 128 requests
- WordPress theme: ch2_sandbox · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.open-books.org | 30 |
| shopwestloop.open-books.org | 12 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Jetpack Jul 2026
- dropped PhotoSwipe Jul 2026
- dropped Constant Contact Jun 2026
- detected HTTP/3 May 2026
- dropped Cloudflare Browser Insights Jan 2026
- dropped HTTP/3 Jan 2026
- detected Cloudflare Bot Management Dec 2025
- detected Cloudflare Browser Insights Oct 2025