What powers zachklein.com?
Last seen Sep 2026 · 30 technologies across 18 categories
Analytics
Blogs
Substack
since May 2025
Caching
Varnish
since Dec 2024
CDN
CMS
Documentation
Obsidian Publish
since Sep 2023
Font scripts
Bunny Fonts
since Feb 2026
Issue trackers
Sentry
since May 2025
JavaScript frameworks
React
since Dec 2024
JavaScript graphics
PIXIjs
since Sep 2023
JavaScript libraries
Miscellaneous
Photo galleries
PhotoSwipe
since Dec 2024
Programming languages
Node.js
since Dec 2024
Security
Cloudflare Bot Management
since May 2025
HSTS
since May 2025
UI frameworks
Radix UI
since Mar 2026
Web frameworks
Express
since May 2025
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
2.81 / 10 · ranked #1,958,219 of all domains
46 referring domains · OpenPageRank
Infrastructure
- Hosted on DigitalOcean (178.128.137.126)
- DNS: Cloudflare DNS
- Email: Cloudflare Email Routing
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 2,090,362, 6 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| substack.zachklein.com | 17 |
| www.zachklein.com | 16 |
| zachklein.com | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Bunny Feb 2026
- detected Bunny Fonts Feb 2026