JavaScript libraries
jQuery The Write Less Do More JavaScript Library

Analytics
The next best thing to sitting beside someone browsing your site See where they click ask what they think and learn why they drop off Get started for free

Tag managers
Google Tag Manager helps make website tag management simple with tools solutions that allow small businesses to deploy and edit tags all in one place

Analytics
Adobe Analytics is a web analytics, marketing and cross-channel analytics application

Issue trackers
Self hosted and cloud based application performance monitoring error tracking that helps software teams see clearer solve quicker learn continuously

Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security