What powers johnossipinsky.com?
Last seen Oct 2026 · 22 technologies across 13 categories
Analytics
Google Analytics
since Feb 2026
CDN
Cloudflare
since Feb 2025
jsDelivr
since Feb 2025
Customer data platform
Rudderstack
since Feb 2025
Ecommerce
Kajabi
since Feb 2025
Font scripts
Google Font API
since Feb 2025
Issue trackers
JavaScript libraries
Miscellaneous
Programming languages
Ruby
since Feb 2025
Security
Cloudflare Bot Management
since Feb 2025
Video players
Wistia
since Feb 2026
Web frameworks
Ruby on Rails
since Feb 2025
Webmail
Microsoft 365
since Feb 2025
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
AI Crawlers
No AI crawlers blocked
Open Page Rank
0.63 / 10 · ranked #21,274,769 of all domains
1 referring domains · OpenPageRank
Page
- Language: English
- CDN: Cloudflare
- Weight: 6.5 MB · 73 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.10.209, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 1,124,539, 2 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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