What powers 
theus.org.uk?
Last seen Oct 2026 · 41 technologies across 23 categories
Accessibility
Analytics
Authentication
Caching
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript libraries
Live chat
Marketing automation
Miscellaneous
PaaS
Performance
Programming languages
Security
UI frameworks
Video players
Web servers
Webmail
WordPress plugins
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Nov 2026 *: Restricted (was Blocked)
- Oct 2026 *: Blocked (was Restricted)
- Oct 2026 *: Restricted (was Blocked)
- Oct 2026 *: Blocked (was Restricted)
- Aug 2026 *: Restricted (was Blocked)
AI Crawlers
No AI crawlers blocked
Audience
- 63% phone
- 37% desktop
United Kingdom
Israel
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.34 / 10 · ranked #427,663 of all domains
92 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United Kingdom)
- Weight: 7.4 MB · 91 requests
- WordPress theme: impreza (child: impreza-child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- United Synagogue
- Founded: 1870
- Country: United Kingdom
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Registered Jun 2004 (22 years) via Cloudflare, Inc., renews Jun 2027
- Hosted on POSITIVE-INTERNET-UK-AS The Positive Internet Company Ltd (80.87.129.101)
- DNS: Cloudflare DNS
- Email: Mimecast
- Email security: SPF (hard fail), DMARC reject, DNSSEC signed, BIMI
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 538,252, 10 hosts
- Verified with: Apple Business, Atlassian, 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 |
|---|---|
| theus.org.uk | 28 |
| join.myus.theus.org.uk | 17 |
| myus.theus.org.uk | 12 |
| www.theus.org.uk | 12 |
| books.theus.org.uk | 9 |
Full technology history →
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Recent changes
- dropped Litespeed Cache Aug 2026
- detected Twitter Emoji (Twemoji) Aug 2026
- detected Varnish Jul 2026
- detected LazySizes Jun 2026