What powers testlibrary.app?
Last seen Sep 2026 · 15 technologies across 10 categories
Advertising
APPLOVIN
since Sep 2026
Microsoft Advertising
since Sep 2026
Analytics
Cloudflare Browser Insights
since Sep 2026
Google Analytics
since Sep 2026
CDN
Cloudflare
since Sep 2026
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Sep 2026
Programming languages
Node.js
since Sep 2026
Security
Cloudflare Bot Management
since Sep 2026
UI frameworks
Tailwind CSS
since Sep 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 73% phone
- 27% desktop
United States
Canada
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 3.8 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.6 MB · 79 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.64.45, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (hard fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 92,453,741
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted