What powers 
ham.study?
Last seen Sep 2026 · 11 technologies across 8 categories
Analytics
Plausible
since Feb 2025
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Payment processors
PayPal
since Sep 2020
Security
HSTS
since Sep 2022
Webmail
Google Workspace
since Aug 2022
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not found
- ai.txt not found
AI Crawlers
Policy unknown
Audience
- 59% desktop
- 41% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.42 / 10 · ranked #980,041 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 0.3 MB · 18 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on XMISSION (44.40.48.40)
- DNS: Hurricane Electric
- Email: Google Workspace
- Email security: SPF (hard fail), DMARC quarantine, CAA
- SSL: Let's Encrypt, RSA 4096, wildcard, expires Dec 2026
- Common Crawl link graph: rank 234,751, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Cloudflare Jan 2026
- dropped Cloudflare Bot Management Jan 2026
- detected Cloudflare Nov 2025
- detected Cloudflare Bot Management Nov 2025