Enhancement request: search posts by keyword / tag

[chriswilty]

Sometimes I recall a blog post from a while back but I cannot remember which single category it is in. Even if I do, this is the only way of filtering the blog from the blog site itself, so if it was a while back I'm going to have to remember approximately when it was published, and scroll back to then.

I can of course use a generic web search with a site filter, for example "spylogic site:blog.scottlogic.com". But it would be nice to have some in-site search functionality other than filtering by category.

On a related note, I assumed that search engine indexing is using the tags we include in our posts, but I couldn't see my tags anywhere in the document source, so what are those for - finding related content for the bottom / insights part?