replyTitle: "if search engine crawlers didn't run JavaScript the Web would be better"
replyType: "SocialMediaPosting"
replyAuthor: "Alexandra"
replyAuthorURI: "https://www.alm.website/me"
---
The only engines I know of that run JavaScript are Google, Bing, and maybe Petal. None of the other engines in my list appear to support it. I don't even think Yandex does.
It's common practice for sites to give a JavaScript-lite version to search engines, though if the content differs heavily you run the risk of hitting a manual action. I'd imagine that search-crawler-exclusive editions would become the norm if crawlers stopped handling JavaScript.
