What powers classclef.com?
Last seen Jun 2026 · 21 technologies across 15 categories
Advertising
Analytics
Quantcast Measure
since Nov 2019
Snowplow Analytics
since Oct 2021
Caching
W3 Total Cache
since Oct 2019
CDN
Cloudflare
since Oct 2019
CMS
WordPress
since Apr 2018
Databases
MySQL
since Jun 2018
Font scripts
Twitter Emoji (Twemoji)
since Jun 2018
JavaScript libraries
Miscellaneous
HTTP/3
since Feb 2026
Open Graph
since Sep 2022
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
RUM
Cloudflare Browser Insights
since Feb 2026
Tag managers
Google Tag Manager
since Sep 2019
WordPress plugins
WordPress themes
Audience
- 48% desktop
- 47% phone
- 5% tablet
United States
Japan
Germany
United Kingdom
Brazil
France
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.57 / 10 · ranked #5,897,320 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0.15 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 0.7 MB · 67 requests
- WordPress theme: astra · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected FingerprintJS Apr 2026
- dropped Apache HTTP Server Mar 2026
- dropped OpenSSL Mar 2026
- dropped UNIX Mar 2026
- detected Cloudflare Feb 2026
- detected Cloudflare Browser Insights Feb 2026
- detected core-js Feb 2026
- detected Google Tag Manager Feb 2026
- detected HTTP/3 Feb 2026
- detected ID5 Feb 2026
- detected Prebid Feb 2026
- detected Twitter Emoji (Twemoji) Jan 2026
- detected Snowplow Analytics Oct 2025