jQuery History
Maintain back/forward button support in JS applications.
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27 technologies detected
Maintain back/forward button support in JS applications.
Varnish is a web accelerator / reverse proxy caching server.
A free CDN where Javascript developers can host their files. Encompasses MaxCDN, and BootstrapCDN.
jQuery version 1.6.2
Varnish version 6.x
The jQuery Amazon S3 Content Delivery Network
MathJax is an open source javascript technology for rendering mathematical content beautifully.
Content from this page is being sent via the Heroku Vegur Proxy.
Cookie consent transparency system from OneTrust.
One Trust domain verification system.
Swipe is a lightweight mobile slider with 1:1 touch movement.
jQuery version 2.0.3
Ghost is an open source blogging platform built entirely in JavaScript, focused on nothing but publishing.
Create a mobile version of your WordPress site using the WPtouch.
Application server and framework system.
jQuery version 1.10.1
Simply insert your google meta tag verification code using this helpful plugin.
Simplify Cookie Compliance for GDPR and ePrivacy.
Automatically optimizes the delivery of your web pages so your visitors get the fastest page load times and best performance.

Read about how Duolingo works, and how our learning scientists are working to make education fun and accessible to everyone.
$91 / mo
$1,087 estimated annually (USD)
Based on 21 priced SaaS tools of 27 detected. Conservative estimate based on entry-tier monthly pricing for detected SaaS tools. Open-source, one-time, and contact-sales products are excluded. Actual spend may differ.