What powers challenge.org?

Last seen May 2026 · 30 technologies across 15 categories

CDN

cdnjs
since Oct 2021
Cloudflare
since May 2022

CMS

WordPress
since Jan 2019

Databases

MySQL
since Jan 2019

Ecommerce

WooCommerce v3.6.2
since Jan 2019

Font scripts

Font Awesome v4.7.0
since Apr 2019
Twitter Emoji (Twemoji) v12.1.3
since Jan 2019

JavaScript frameworks

Backbone.js v1.4.0
since May 2020
React
since Jun 2024

JavaScript libraries

core-js v2.6.11
since Sep 2021
jQuery v1.12.4
since Jan 2019
jQuery Migrate v1.4.1
since Jan 2019
Select2
since Apr 2019
Underscore.js v4.17.23
since May 2020

Live chat

Tawk.to
since Jan 2019

Miscellaneous

Babel
since Jul 2021
HTTP/3
since Sep 2022
Open Graph
since Sep 2022
Popper v1.12.9
since Feb 2021
Webpack
since Jan 2019

Payment processors

Stripe v3
since May 2020

Programming languages

PHP
since Jan 2019

UI frameworks

Bootstrap v4.0.0
since Jan 2019

Webmail

Microsoft 365
since Aug 2022

Widgets

AddThis
since Jan 2019
Sumo
since Feb 2022

WordPress plugins

Contact Form 7 v5.1.7
since Feb 2022
Litespeed Cache
since May 2020
NextGEN Gallery v3.3.5
since Jan 2019
Yoast SEO v13.5
since Jan 2019

Open Page Rank

4.69 / 10 · ranked #348,936 of all domains

124 referring domains · OpenPageRank

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