What powers 
shellfish.org?
Last seen Sep 2026 · 10 technologies across 6 categories
CDN
Cloudflare
since Aug 2022
Font scripts
Google Font API
since Aug 2022
JavaScript frameworks
JavaScript libraries
DataTables
since Aug 2022
jQuery UI
since Aug 2022
PaaS
Amazon Web Services
since Aug 2022
Security
HSTS
since Oct 2022
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.53 / 10 · ranked #861,782 of all domains
52 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.4 MB · 48 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Amazon Web Services (35.172.21.198)
- DNS: Amazon Route 53
- Email: Rackspace Email
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 2,073,448, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted