There are other gotchas as well; for example, on my blog I have links in my sidebar to pages for categories and tags, but the links have total post counts for the category/tag after them, so every time a new post is added at least one count will change on every page. I don't mind because the SSG I use (my own, https://github.com/pdonis/simpleblog3 ) renders fast enough to suit me; it takes about 5-6 seconds to render my entire blog.