What powers 
textbooks.dad?
Last seen Oct 2026 · 28 technologies across 14 categories
Analytics
CDN
CMS
CRM
Databases
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
Security
SEO
UI frameworks
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not found
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 84% desktop
- 13% phone
- 3% tablet
United States
Canada
Türkiye
Philippines
South Korea
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.01 / 10 · ranked #561,064 of all domains
80 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.0 MB · 60 requests
- WordPress theme: bookie-wp · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.94.154, IPv6)
- DNS: Cloudflare DNS
- Email: Zoho Mail
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 1,407,236
- Verified with: Google, Pinterest, Yandex Webmaster, Zoho
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Stripe Oct 2026
- dropped WebToffee Stripe Payment Plugin for WooCommerce Oct 2026
- dropped WooCommerce Stripe Payment Gateway Oct 2026
- detected Ethers Sep 2026
- dropped Google Font API Sep 2026
- dropped Isotope Sep 2026
- dropped LazySizes Sep 2026
- dropped Modernizr Sep 2026
- dropped Slick Sep 2026
- dropped Font Awesome Aug 2026
- dropped MonsterInsights Aug 2026
- detected Site Kit Aug 2026
- detected web-vitals Aug 2026
- detected Yoast SEO Premium Jul 2026
- detected Contact Form 7 Jun 2026
- detected core-js Jun 2026
- detected Facebook Pixel Jun 2026
- detected Google Analytics Jun 2026
- detected Isotope Jun 2026
- detected jQuery Migrate Jun 2026
- detected LazySizes Jun 2026
- detected Litespeed Cache Jun 2026
- detected Modernizr Jun 2026
- detected MonsterInsights Jun 2026
- detected Slick Jun 2026
- dropped Contact Form 7 Apr 2026
- dropped core-js Apr 2026
- dropped Google Analytics Apr 2026
- dropped Isotope Apr 2026
- dropped jQuery Migrate Apr 2026
- dropped LazySizes Apr 2026
- dropped Modernizr Apr 2026
- dropped MonsterInsights Apr 2026
- dropped reCAPTCHA Apr 2026
- dropped Slick Apr 2026
- dropped WP Rocket Apr 2026
- dropped Yoast SEO Premium Apr 2026
- detected Bunny Mar 2026
- detected Cloudflare Turnstile Mar 2026