What powers dpcalc.org?
Last seen Aug 2026 · 7 technologies across 7 categories
Analytics
Editors
DreamWeaver
since Jul 2017
Hosting
GoDaddy
since Aug 2022
JavaScript Frameworks
Operating Systems
Ubuntu
since Jul 2017
Programming languages
Web Servers
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
- 68% desktop
- 32% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.33 / 10 · ranked #1,092,142 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.3 MB · 35 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on RIT-ASN (129.21.231.23)
- Email: GoDaddy Email
- Email security: no SPF record, no DMARC record
- Common Crawl link graph: rank 7,893,213, 2 hosts
DNS records as swept Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| dpcalc.org | 7 |
| www.dpcalc.org | 7 |