What powers 
ukwhoswho.com?
Last seen Aug 2026 · 30 technologies across 18 categories
Analytics
CDN
Cookie compliance
Font scripts
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Load balancers
Miscellaneous
Operating systems
PaaS
Programming languages
Security
Tag managers
UI frameworks
Video players
Web frameworks
Web servers
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 Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 70% desktop
- 31% phone
United Kingdom
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.01 / 10 · ranked #559,143 of all domains
105 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- CDN: Amazon CloudFront
- Weight: 1.6 MB · 122 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Who's Who
- Founded: 1849
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (99.84.160.10)
- DNS: Amazon Route 53
- Email: 123-reg.co.uk
- Email security: no SPF record, no DMARC record
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 559,235, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.ukwhoswho.com | 27 |
| update.ukwhoswho.com | 5 |
Full technology history →
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Recent changes
- detected Cloudflare Jan 2026
- detected Cloudflare Bot Management Jan 2026