What powers discretemath.org?
Last seen Sep 2026 · 7 technologies across 6 categories
Analytics
Google Analytics
since Jul 2022
Statcounter
since Jul 2022
Font scripts
Google Font API
since Mar 2024
Miscellaneous
HTTP/3
since Jul 2026
Security
HSTS
since Sep 2022
Web servers
LiteSpeed
since Jul 2026
Widgets
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 checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.96 / 10 · ranked #1,667,282 of all domains
54 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on A2 Hosting (66.198.240.11)
- DNS: A2 Hosting
- Email: discretemath.org
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 637,222, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Apache HTTP Server Aug 2026