What powers 
phosphosite.org?
Last seen Oct 2026 · 26 technologies across 14 categories
Analytics
CDN
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Load balancers
PaaS
Programming languages
Security
Tag managers
UI frameworks
Web servers
Webmail
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 94% desktop
- 6% phone
United States
India
Japan
Canada
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #336,877 of all domains
105 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3 s |
| INP | 150 ms |
| CLS | 0.15 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- CDN: Cloudflare
- Weight: 2.8 MB · 24 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Jan 2002 (24 years) via MarkMonitor Inc., renews Jan 2027
- Hosted on Amazon Web Services (13.248.143.46)
- DNS: markmonitor.com
- Email: Google Workspace
- Email security: SPF (hard fail), DMARC reject
- SSL: Google Trust Services, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 524,271, 4 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Sep 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.phosphosite.org | 17 |
| kinase-library.phosphosite.org | 14 |
Full technology history →
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Recent changes
- detected lit-element Oct 2026
- detected lit-html Oct 2026
- detected Tailwind CSS Oct 2026
- detected Vue.js Oct 2026
- detected Vuetify Oct 2026