What powers tefl.com?
Last seen Jun 2026 · 12 technologies across 11 categories
Advertising
Microsoft Advertising
since Oct 2024
Analytics
Google Analytics
since Jun 2018
Cookie compliance
Amazon SES
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Apr 2024
Operating systems
Debian
since Aug 2019
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Java
since Sep 2021
Tag managers
Google Tag Manager
since Mar 2020
Web servers
Audience
- 55% desktop
- 44% phone
- 2% tablet
United Kingdom
Italy
Spain
Poland
Türkiye
Vietnam
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.70 / 10 · ranked #312,668 of all domains
188 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 4.4 MB · 135 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.