What powers 
openchemistry.org?
Last seen Dec 2025 · 16 technologies across 14 categories
Analytics
Google Analytics
since Jul 2022
CMS
Databases
MySQL
since Jul 2022
Font scripts
Google Font API
since Sep 2023
JavaScript libraries
Miscellaneous
RSS
since Jan 2023
Mobile frameworks
Page builders
Performance
Priority Hints
since Oct 2025
Programming languages
PHP
since Jul 2022
Security
Video players
YouTube
since Jul 2022
Web servers
Apache HTTP Server
since Jul 2022
Wikis
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
1 of 33 AI crawlers blocked
Open Page Rank
3.56 / 10 · ranked #834,367 of all domains
40 referring domains · OpenPageRank
Infrastructure
- Hosted on LVLT-3549 (66.194.253.25)
- DNS: Google Cloud DNS
- Email: kitware.com
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 475,301, 7 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.openchemistry.org | 14 |
| wiki.openchemistry.org | 6 |