A static site generator (SSG) turns a folder of markdown into plain HTML at build time. No server-side code runs in production, which makes hosting cheap, fast, and hard to hack.
How they work
Content (markdown + frontmatter) is parsed, run through a transform pipeline, and rendered against layout templates. The output is a folder of files any CDN can serve.
Quartz
Quartz is an SSG built specifically for Obsidian vaults: it understands wikilinks, embeds, callouts and tags natively, and ships with an explorer, backlinks and full-text search.