Blog post showing instead of custom 404 page

LazyDiver

Hello Air,

I was trying to fix issues with some indexed content on my site when I noticed that in some cases, a blog post is shown instead of the custom 404 page.

Case #1. "https://(website_address)/(website_files)/" - returns custom 404 page

Case #2. "https://(website_address)/(website_files)/existing_page" - redirects to "https://(website_address)/existing_page/"

Case #3. "https://(website_address)/(website_files)/non_existent_page" - returns custom 404 page

Case #4. "https://(website_address)/non_existent_page" - returns custom 404 page


Case #5. "https://(website_address)/(website_files)/(existing_page)/non_existent_page" - returns most recent blog post

Case #6. "https://(website_address)/(website_files)/(non_existent_page)/non_existent_page" - returns most recent blog post

It looks like it happens starting at the 4th level... Is there anything that I can do to fix this?

Thank you in advance!

Air

Hello :-)

I don't know the magic of WordPress 404 inner workings, but I know it tries to resolve something instead of just returning a 404 error in some cases.
However, I didn't find any explanation online for this, while trying a quick search.

With kind regards.

LazyDiver

Thank you for looking into it. I read somewhere that sometimes it could be due to a small glitch in the coding of the theme, but it applied more to the first 4 cases. I didn't find anything in particular to the last cases.

Thanks again for checking!