HTTP 308 — Permanent Redirect
3xx Redirection
What it means
Like 301, but the method and body are preserved.
What to do about it
Use for permanent redirects of non-GET endpoints — an API that moved, for example.
Where it sits
308 belongs to the 3xx family: Further action is needed to complete the request — usually following a redirect.
HTTP/1.1 308 Permanent Redirect
Checking it yourself
# see the status code and headers only
curl -sI https://example.com/path
# follow redirects and print each hop
curl -sIL -o /dev/null -w "%{http_code} %{url_effective}\n" https://example.com/path
# JavaScript
const r = await fetch(url);
console.log(r.status, r.statusText);