What powers pen4pals.com?
Last seen Jun 2026 · 18 technologies across 13 categories
Advertising
Google AdSense
since May 2018
Analytics
Google Analytics
since Jun 2018
Pinterest Conversion Tag
since Mar 2025
Yandex.Metrika
since Feb 2021
CDN
Google Hosted Libraries
since Feb 2022
Unpkg
since Mar 2023
CMS
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Jun 2025
Programming languages
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Aug 2021
UI frameworks
Video players
Web servers
Page
- Language: English
- Weight: 0.4 MB · 56 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| pen4pals.com | 14 |
| www.pen4pals.com | 9 |
Full technology history →
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Recent changes
- dropped ADFOX Jun 2026
- detected Quicklink Jun 2026
- detected Unpkg Jun 2026
- dropped Quicklink May 2026
- dropped Unpkg May 2026
- dropped Adobe Audience Manager Apr 2026
- detected Adobe Audience Manager Feb 2026