What powers xrdocs.io?
Last seen Sep 2026 · 15 technologies across 8 categories
Analytics
Authentication
CDN
JavaScript frameworks
Miscellaneous
Performance
Programming languages
UI frameworks
AI Crawlers
Blocks 14 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- PerplexityBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 19 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 Content Signals changed
AI Crawlers
14 of 33 AI crawlers blocked
Audience
- 64% desktop
- 36% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.79 / 10 · ranked #1,994,326 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 0.6 MB · 46 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.55.238, IPv6)
- Email: Namecheap
- Email security: SPF (soft fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 6,717,872
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected RSS Jul 2026
- dropped Font Awesome Feb 2026
- dropped GitHub Pages Feb 2026
- dropped Google Font API Feb 2026
- dropped Google Hosted Libraries Feb 2026
- dropped jQuery Feb 2026
- dropped jsDelivr Feb 2026
- dropped RSS Feb 2026
- dropped Splide Feb 2026
- detected Google Analytics Jan 2026
- detected NextAuth.js Jan 2026
- detected Next.js Jan 2026
- detected Next.js App Router Jan 2026
- detected Node.js Jan 2026
- detected Priority Hints Jan 2026
- detected PWA Jan 2026
- detected React Jan 2026
- detected Tailwind CSS Jan 2026
- detected Webpack Jan 2026
- detected Cloudflare Browser Insights Nov 2025