What powers dnscheck.co?
Last seen Aug 2026 · 15 technologies across 12 categories
Analytics
Google Analytics
since Jul 2020
CDN
Cloudflare
since Jun 2021
Amazon SES
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Oct 2022
PWA
since May 2026
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Ruby
since Jul 2020
Security
HSTS
since Nov 2025
UI frameworks
Web frameworks
Ruby on Rails
since Jul 2020
Web servers
Webmail
Proton Mail
since Feb 2023
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
Content Signals:
search=yes ai-train=yes ai-input=yes declared in robots.txt
- Oct 2026 Content Signals changed
AI Crawlers
No AI crawlers blocked
Standards: Content Signals
Open Page Rank
3.19 / 10 · ranked #1,276,140 of all domains
23 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.26.2.5, IPv6)
- DNS: Cloudflare DNS
- Email: Proton Mail
- Email security: SPF (soft fail), DMARC monitor only, CAA
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 8,654,070, 4 hosts
- Verified with: Proton
DNS records as swept Sep 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped reCAPTCHA Jul 2026
- dropped Sendgrid May 2026
- dropped Turbolinks May 2026