What powers appendix.com?
Last seen Jul 2026 · 24 technologies across 14 categories
Analytics
Google Analytics
since Mar 2026
Vercel Analytics
since Mar 2026
Authentication
Clerk
since Mar 2026
CDN
Cloudflare
since Mar 2026
Development
Turbopack
since Mar 2026
JavaScript frameworks
Miscellaneous
PaaS
Payment processors
Performance
Priority Hints
since Mar 2026
Programming languages
Node.js
since Mar 2026
Security
Cloudflare Bot Management
since Mar 2026
HSTS
since Mar 2026
Tag managers
Google Tag Manager
since Mar 2026
UI frameworks
Webmail
Google Workspace
since Mar 2026
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- ClaudeBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
Search and AI assistants
- Amazonbot Allowed
- PerplexityBot Allowed
The other 28 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Open Page Rank
0.10 / 10 · ranked #91,776,651 of all domains
0 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.75.130)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: no SPF record, DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 41,281,246, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted