What powers klass.co.uk?
Last seen Aug 2026 · 37 technologies across 20 categories
Advertising
Affiliate programs
AWIN
since Mar 2021
Analytics
Cart abandonment
UpSellit
since Nov 2022
CDN
Cookie compliance
OneTrust
since Jun 2021
Ecommerce
Cart Functionality
since Aug 2020
JavaScript frameworks
Vue.js
since Jul 2021
JavaScript libraries
Marketing automation
OptinMonster
since Apr 2025
Miscellaneous
Payment processors
Klarna Checkout
since Oct 2023
PayPal
since Oct 2023
Performance
Priority Hints
since Aug 2025
Programming languages
Java
since Oct 2023
Retargeting
Smarter Click
since Jul 2021
Reviews
Trustpilot
since Oct 2023
Security
Cloudflare Bot Management
since Nov 2021
HSTS
since Oct 2023
Tag managers
Google Tag Manager
since Nov 2018
UI frameworks
Web frameworks
Microsoft ASP.NET
since Aug 2018
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 75% phone
- 15% desktop
- 10% tablet
United Kingdom
Ireland
France
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.53 / 10 · ranked #2,438,671 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United Kingdom)
- CDN: Cloudflare
- Weight: 5.0 MB · 154 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Open Graph Aug 2026
- detected Cloudflare Bot Management Dec 2025