What powers 
kcsrk.info?
Last seen Sep 2026 · 10 technologies across 9 categories
Advertising
Twitter Ads
since Aug 2025
Analytics
Google Analytics
since May 2019
Caching
Varnish
since Dec 2021
CDN
Cloudflare
since Aug 2025
Fastly
since Dec 2021
Font scripts
Google Font API
since May 2019
Miscellaneous
RSS
since Dec 2022
PaaS
GitHub Pages
since May 2019
Security
Cloudflare Bot Management
since Aug 2025
Widgets
Twitter
since Aug 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
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.91 / 10 · ranked #640,295 of all domains
69 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Fastly
- Weight: 1.2 MB · 18 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153)
- DNS: Gandi
- Email: Gandi
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,889,928, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025