What powers keystoneeyecare.com?
Last seen Oct 2026 · 18 technologies across 12 categories
Analytics
CDN
Font scripts
JavaScript libraries
Load balancers
Operating systems
PaaS
UI frameworks
Video players
Web frameworks
Web servers
Webmail
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026.
Training crawlers
- Google-Extended Restricted
Search and AI assistants
- Amazonbot Restricted
- Applebot Restricted
- Claude-SearchBot Restricted
- OAI-SearchBot Restricted
User-request fetchers
- ChatGPT-User Restricted
- Perplexity-User Restricted
The other 26 AI crawlers we track are not mentioned and are blocked by the catch-all rule (User-agent: *).
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.30 / 10 · ranked #49,087,252 of all domains
1 referring domains · OpenPageRank
Page
- Language: English
- CDN: Amazon CloudFront
- Weight: 1.6 MB · 70 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (54.71.23.54)
- DNS: eNom
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- Verified with: Microsoft 365
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon ELB Oct 2026
- detected Amazon Web Services Oct 2026
- dropped Azure Sep 2026
- dropped Azure Front Door Sep 2026