What powers 
siplab.org?
Last seen Sep 2026 · 6 technologies across 5 categories
Analytics
Google Analytics
since Aug 2022
Caching
Varnish
since Aug 2022
CDN
Cloudflare
since Jan 2023
Fastly
since Aug 2022
Miscellaneous
Open Graph
since Jan 2023
PaaS
GitHub Pages
since Aug 2022
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
- 84% desktop
- 16% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.43 / 10 · ranked #968,084 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Fastly
- Weight: 2.5 MB · 15 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153, IPv6)
- DNS: Porkbun
- Email: Porkbun
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,078,760, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted