What powers 
pharmgkb.org?
Last seen Dec 2025 · 14 technologies across 10 categories
Analytics
CDN
Font scripts
Issue trackers
JavaScript libraries
Miscellaneous
Security
UI frameworks
Web servers
Webmail
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
The other 20 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
Content Signals:
search=yes ai-train=no declared in robots.txt
- Sep 2026 googleother added to robots.txt
- Sep 2026 bytespider added to robots.txt
- Sep 2026 ccbot added to robots.txt
- Sep 2026 claude-web added to robots.txt
- Sep 2026 applebot-extended added to robots.txt
- Sep 2026 Content Signals changed
AI Crawlers
13 of 33 AI crawlers blocked
Standards: Content Signals
Open Page Rank
6.39 / 10 · ranked #82,663 of all domains
351 referring domains · OpenPageRank
Infrastructure
- Hosted on STANFORD (171.67.192.2)
- DNS: stanford.edu
- Email: Google Workspace
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 424,164, 6 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.pharmgkb.org | 11 |
| api.pharmgkb.org | 8 |