What powers pdfding.com?
Last seen Aug 2026 · 13 technologies across 12 categories
CDN
Bunny
since Jan 2026
Cloudflare
since Feb 2025
Documentation
Font scripts
Google Font API
since Jan 2026
JavaScript frameworks
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
AI Crawlers
30 of 33 AI crawlers blocked
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
| Host | Techs |
|---|---|
| demo.pdfding.com | 9 |
| docs.pdfding.com | 5 |
| www.pdfding.com | 3 |
Full technology history →
Report an incorrect detection