What powers 
libraryextension.com?
Last seen Sep 2026 · 11 technologies across 9 categories
Analytics
CDN
Font scripts
Miscellaneous
Payment processors
Security
Static site generator
UI frameworks
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
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 83% desktop
- 17% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.51 / 10 · ranked #884,924 of all domains
107 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- CDN: Cloudflare
- Weight: 0.2 MB · 19 requests
- Structured data: JSON-LD, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Library Extension
- Industry: Software and apps (declares
SoftwareApplication) - Profiles: X
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on Cloudflare (104.21.26.16)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 108,348, 2 hosts
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 Material Design Lite Sep 2026
- detected HSTS Aug 2026
- detected Cloudflare Browser Insights Jul 2026