What powers openbooks.org?

Analytics

Google Analytics

since Oct 2024

CDN

Cloudflare

since Jan 2023

Google Hosted Libraries

since Oct 2024

CMS

WordPress v6.4.3

since Jan 2023

Databases

MySQL

since Jan 2023

Email

Constant Contact

since Oct 2024

Google Workspace

since Jan 2023

Sendgrid

since Nov 2024

Font scripts

Font Awesome

since Jan 2023

Google Font API

since Jan 2023

Fundraising & donations

ActBlue

since Oct 2023

Kindful v2.0

since Nov 2024

Qgiv

since Nov 2024

JavaScript libraries

core-js v3.31.0

since Jan 2023

jQuery v3.5.1

since Jan 2023

jQuery Migrate v3.4.1

since Jan 2023

Miscellaneous

HTTP/3

since Jan 2023

Open Graph

since Oct 2024

PWA

since Jan 2023

RSS

since Jan 2023

Webpack

since Apr 2025

PaaS

Cloudways

since Jan 2023

Page builders

Webflow

since Oct 2024

WordPress Block Editor

since Jul 2024

Programming languages

PHP

since Jan 2023

Security

Cloudflare Bot Management

since Dec 2023

HSTS

since Oct 2024

reCAPTCHA

since Oct 2024

Video players

Vimeo

since Dec 2023

WordPress plugins

EmbedPlus

since Jan 2023

GiveWP

since Jan 2023

Jetpack

since Jan 2023

Smash Balloon Instagram Feed

since Jan 2023