What powers 
viz.co.uk?
Last seen Sep 2026 · 29 technologies across 18 categories
Analytics
CDN
CMS
Cookie compliance
Databases
Ecommerce
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
- Aug 2026 robots.txt removed
AI Crawlers
No AI crawlers blocked
Audience
- 75% phone
- 25% desktop
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.31 / 10 · ranked #433,135 of all domains
123 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 3.7 MB · 47 requests
- WordPress theme: viz2022 · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Viz
- Founded: 1979
- Country: United Kingdom
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (185.151.47.137)
- DNS: Amazon Route 53
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 620,470, 4 hosts
- Verified with: Meta Business, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| viz.co.uk | 17 |
| shop.viz.co.uk | 16 |
| subscribe.viz.co.uk | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Open Graph May 2026
- dropped Ubuntu May 2026
- dropped Yoast SEO May 2026
- detected Funding Choices Apr 2026
- detected Twitter Emoji (Twemoji) Dec 2025