HTMX is the HTML extension syntax that replaces JavaScript with simple markup. It could change the course of web development. HTMX lets you use an extended HTML syntax instead of JavaScript to ...

Its Free JavaScript campaign, launched in 2013, promotes the idea that websites should only use free and open source JavaScript code or, failing that, at least make their sites functional without it.

“Using the urchinTracker JavaScript, you can assign a specific page filename to Flash events, JavaScript events, file downloads, outbound links, and more,” they say.

Always test your pages using Google’s own tools and third-party resources to view the rendered HTML to make sure all your content is showing up. Google has come a long way with rendering JavaScript.