What powers 
sut.org?
Last seen Oct 2026 · 33 technologies across 20 categories
Analytics
Caching
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Payment processors
Programming languages
Retargeting
Security
Tag managers
UI frameworks
Web servers
Webmail
WordPress plugins
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 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 only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
- Nov 2026 ccbot added to robots.txt
- Nov 2026 claude-web added to robots.txt
- Nov 2026 claudebot added to robots.txt
- Nov 2026 bytespider added to robots.txt
- Nov 2026 Content Signals changed
- Nov 2026 amazonbot added to robots.txt
AI Crawlers
13 of 33 AI crawlers blocked
Standards: Content Signals
Audience
- 70% desktop
- 30% phone
United Kingdom
Australia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #340,913 of all domains
110 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 3.8 MB · 52 requests
- WordPress theme: sut · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Society for Underwater Technology
- Founded: 1966
- Sector: higher education
- Country: United Kingdom
From Wikidata (CC0).
Infrastructure
- Registered Dec 1996 (29 years) via Tucows Domains Inc., renews Dec 2029
- Hosted on Cloudflare (104.21.56.113, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Jan 2027
- Common Crawl link graph: rank 1,902,544, 3 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sut.org | 23 |
| www.sut.org | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped WooCommerce Stripe Payment Gateway Oct 2026
- detected reCAPTCHA Apr 2026
- dropped ExactMetrics Mar 2026
- dropped HSTS Mar 2026
- dropped RSS Mar 2026
- detected core-js Feb 2026
- detected Gravity Forms Feb 2026
- detected GSAP Feb 2026
- detected LazySizes Feb 2026
- detected Lenis Feb 2026
- detected Litespeed Cache Feb 2026
- detected LottieFiles Feb 2026
- detected Mailgun Feb 2026
- detected Open Graph Feb 2026
- detected PWA Feb 2026
- detected Stripe Feb 2026
- detected WooCommerce Feb 2026
- detected WooCommerce Stripe Payment Gateway Feb 2026
- detected Yoast SEO Feb 2026