What powers kalman-filter.com?
Last seen Sep 2026 · 13 technologies across 11 categories
Affiliate programs
Amazon Associates
since Jul 2026
Analytics
Fathom
since Apr 2023
Caching
Varnish
since Apr 2023
CDN
Hosting
GoDaddy
since Apr 2023
JavaScript graphics
JavaScript libraries
Miscellaneous
Open Graph
since Apr 2023
RSS
since Apr 2023
PaaS
GitHub Pages
since Apr 2023
Programming languages
Ruby
since Apr 2023
Static site generator
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
0.43 / 10 · ranked #31,006,414 of all domains
2 referring domains · OpenPageRank
Page
- Language: English
- CDN: Fastly
- Weight: 1.9 MB · 20 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Fastly (185.199.108.153)
- DNS: GoDaddy DNS
- Email: kalman-filter.com
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,779,331, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted