JavaScript allows sites to customize links in different ways, but doing so may render the link unusable to crawlers. Here’s what Splitt recommends. Do: Keep it Straightforward ...

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.

But when backed by a healthy community of developers, as is the case with JavaScript, even a modest language becomes supremely effective. (Python dominates scientific computing for similar reasons.) ...