What powers ynu.org.uk?
Last seen Oct 2026 · 17 technologies across 11 categories
Advertising
CDN
CMS
Ecommerce
Font scripts
JavaScript libraries
Programming languages
Security
UI frameworks
Web servers
Widgets
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 Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.61 / 10 · ranked #2,301,792 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United Kingdom)
- Weight: 9.1 MB · 72 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Yorkshire Naturalists' Union
- Founded: 1861
- Country: United Kingdom
From Wikidata (CC0).
Infrastructure
- Hosted on 20i (185.151.30.186, IPv6)
- DNS: stackdns.com
- Email: 20i
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 941,442, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
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Recent changes
- dropped POWR Jul 2026
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- detected POWR Feb 2026