SEO

Most canonical bugs are not tagging mistakes. They are a site accidentally telling search engines that all of its pages are the same page — and the defaults in every framework make that the easy thing to do.

Schema.org markup is usually treated as an SEO garnish you add at the end. It is better understood as a set of machine-readable promises about a page — which means the interesting question is what happens when the page stops keeping them.

Optimising for language models is mostly framed as writing for a new kind of reader. The more useful frame is that you are now writing for a reader that has to decide whether to stake its answer on you.

Categories, subcategories and tags look like three flavours of the same idea. They are three different promises about permanence, and confusing them is how a site ends up with two answers to what a page is about.