What powers xsbook.org?
Last seen Aug 2026 · 2 technologies across 2 categories
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 78% desktop
- 22% phone
China
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.23 / 10 · ranked #75,617,429 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.3 MB · 12 requests
Homepage as crawled by the HTTP Archive, Sep 2026.