What powers posmanbooks.com?
Last seen Sep 2026 · 30 technologies across 14 categories
Analytics
CDN
CMS
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Payment processors
Performance
Programming languages
Security
Webmail
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 Aug 2026.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 64% desktop
- 36% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.16 / 10 · ranked #1,328,260 of all domains
63 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0.15 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 3.2 MB · 282 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (23.227.38.65)
- DNS: Network Solutions
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- Common Crawl link graph: rank 2,300,017, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| posmanbooks.com | 20 |
| www.posmanbooks.com | 18 |
Full technology history →
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Recent changes
- detected Apple Pay Jul 2026
- detected Babel Jul 2026
- detected BugSnag Jul 2026
- detected Cloudflare Jul 2026
- detected Google Maps Jul 2026
- detected HTTP/3 Jul 2026
- detected LazySizes Jul 2026
- detected lit-element Jul 2026
- detected lit-html Jul 2026
- detected PayPal Jul 2026
- detected Shop Pay Jul 2026
- detected Shopify Jul 2026
- detected Angular Apr 2026
- detected TypeScript Apr 2026
- detected Zone.js Apr 2026
- detected Google Font API Dec 2025