What powers pdfding.com?

Last seen Aug 2026 · 13 technologies across 12 categories

CDN

Bunny
since Jan 2026
Cloudflare
since Feb 2025

Documentation

MkDocs v1.6.1
since Jan 2026

Font scripts

Google Font API
since Jan 2026

JavaScript frameworks

Alpine.js v3.15.12
since Feb 2025

JavaScript libraries

Htmx
since Feb 2025

Miscellaneous

HTTP/3
since Dec 2025

Programming languages

Python
since Feb 2025

Security

HSTS
since Feb 2025

UI frameworks

Tailwind CSS
since Feb 2025

Web frameworks

Django
since Feb 2025

Web servers

gunicorn
since Dec 2025

Widgets

Ko-fi
since Jan 2026

AI Crawlers

Blocks 30 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.

Training crawlers

  • AI2Bot Blocked
  • Bytespider Blocked
  • CCBot Blocked
  • ClaudeBot Blocked
  • cohere-training-data-crawler Blocked
  • Diffbot Blocked
  • FacebookBot Blocked
  • Google-CloudVertexBot Blocked
  • Google-Extended Blocked
  • GoogleOther Blocked
  • GPTBot Blocked
  • ImagesiftBot Blocked
  • img2dataset Blocked
  • meta-externalagent Blocked
  • PanguBot Blocked
  • SBIntuitionsBot Blocked
  • Webzio-Extended Blocked

Search and AI assistants

  • Amazonbot Blocked
  • Claude-SearchBot Blocked
  • DuckAssistBot Blocked
  • OAI-SearchBot Blocked
  • PerplexityBot Blocked
  • PetalBot Blocked
  • YouBot Blocked

User-request fetchers

  • ChatGPT-User Blocked
  • Claude-User Blocked
  • GoogleAgent-Mariner Blocked
  • meta-externalfetcher Blocked
  • MistralAI-User Blocked
  • Perplexity-User Blocked

The other 3 AI crawlers we track are not mentioned and stay allowed by default.

  • robots.txt found
  • llms.txt not found
  • ai.txt not found
  • Sep 2026 claude-user added to robots.txt
  • Sep 2026 claude-web added to robots.txt
  • Sep 2026 claudebot added to robots.txt
  • Sep 2026 bytespider added to robots.txt
  • Sep 2026 cohere-training-data-crawler added to robots.txt
  • Sep 2026 cohere-ai added to robots.txt

See who blocks each AI crawler across the web

AI Crawlers

30 of 33 AI crawlers blocked

Full breakdown

Open Page Rank

1.86 / 10 · ranked #4,014,086 of all domains

16 referring domains · OpenPageRank

Infrastructure

  • Hosted on CDN77 (169.150.236.98)
  • DNS: Porkbun
  • Email: no MX record returned
  • SSL: Let's Encrypt, RSA 2048, expires Dec 2026
  • Common Crawl link graph: rank 12,645,538, 3 hosts

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Subdomains

HostTechs
demo.pdfding.com 9
docs.pdfding.com 5
www.pdfding.com 3

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