Kagi blog website responds to HEAD requests for valid URLs with 404

[otherjoel]

Relevant Page(s)

https://blog.kagi.com/blog — example of an affected URL

In fact, all URL paths at blog.kagi.com except for / exhibit this issue.

Description

A GET request to https://blog.kagi.com/blog returns HTTP 200 OK.
A HEAD request to the same URL returns HTTP 404 Not Found.

This is a broken situation; a HEAD request needs to return the headers/response codes that would be sent in response to a GET request for the same URL.

I discovered this from my email newsletter tool, which, before sending a newsletter, checks for broken links using HEAD requests to save bandwidth. All the links/URLs from blog.kagi.com were reported as broken.

I tried to find a better place to report this issue, but could not find one. The blog doesn’t appear to have its own public repo.