What powers os.uk?
Last seen Jun 2026 · 32 technologies across 18 categories
Analytics
Microsoft Clarity
since May 2024
CDN
Documentation
GitBook
since Jun 2024
Amazon SES
since Nov 2024
Font scripts
JavaScript frameworks
JavaScript libraries
Load balancers
Azure Front Door
since Feb 2026
Miscellaneous
Azure Edge Network
since Apr 2026
HTTP/3
since Jun 2024
Open Graph
since Jun 2024
RSS
since Dec 2025
Webpack
since Jun 2024
PaaS
Performance
Priority Hints
since Jun 2024
Programming languages
Node.js
since Jun 2024
Security
HSTS
since Sep 2022
Surveys
Qualtrics
since May 2024
Tag managers
Google Tag Manager
since Dec 2020
UI frameworks
Bootstrap
since Mar 2021
Web servers
Webmail
Apple iCloud Mail
since Jan 2023
Microsoft 365
since Aug 2022
Audience
- 87% desktop
- 13% phone
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.12 / 10 · ranked #101,754 of all domains
237 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4 s |
| INP | 100 ms |
| CLS | 0.15 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 7.8 MB · 57 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| docs.os.uk | 17 |
| labs.os.uk | 15 |
| osdatahub.os.uk | 15 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Azure Edge Network Apr 2026
- detected Bootstrap Apr 2026
- detected Qualtrics Apr 2026
- dropped Envoy Mar 2026
- dropped JSS Mar 2026
- detected Azure Feb 2026
- detected Azure Front Door Feb 2026
- dropped Google Font API Jan 2026
- detected RSS Dec 2025
- dropped Lodash Sep 2025
- detected React Router Aug 2025