What powers tqchen.com?
Last seen Jul 2026 · 5 technologies across 5 categories
Analytics
Google Analytics
since May 2025
Caching
Varnish
since May 2025
CDN
Fastly
since May 2025
PaaS
GitHub Pages
since May 2025
UI frameworks
Bootstrap
since May 2025
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.06 / 10 · ranked #1,480,530 of all domains
24 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153, IPv6)
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,060,303
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted