host/unsupported

The Site’s host can’t do what the Site needs. GitHub Pages can’t send custom headers, immutable caching for hashed assets, brotli or HTTP/3, and redirects only by a page that refreshes. The static adapter writes no host configuration, so headers and redirects are the server’s to send.

Example

[host]
adapter = "github-pages"

Fix

Choose a host that can, such as adapter = "cloudflare", the default. With the static adapter, configure the server as yuanme’s deploying docs show.