Quick answer
A 404 error means the page was not found.
What it means
A 404 error means the page was not found. In normal terms, it is one small part of how Google and people understand your site.
Why it matters
A few 404s are normal. Lots of them can frustrate users, waste links and stop Google finding the right page.
What to do about it
If the old page has a clear replacement, add a 301 redirect. If it never mattered, leave the 404 alone and fix any internal links pointing to it.
Bloom's take
Bloom separates harmless 404s from the ones worth fixing.
Related terms
Questions people ask
What is 404 error in simple terms?
A 404 error means the page was not found.
Does 404 error matter for SEO?
Yes, when it affects whether Google can understand, trust or show your page. It is not always the biggest job on the list, but it is worth fixing when it blocks traffic or confuses visitors.
How do I check 404 error on my site?
Start with the page itself, then use Google Search Console or a simple site scan. Look for the issue on important pages first, not every tiny page you have ever published.
Can Bloom help with 404 error?
Yes. Bloom turns this into a plain task when it matters. If it is technical or fiddly, you can also hand it to a Bloom specialist from inside the app.
Next step
Want this checked on your site? See Bloom services, or see how Bloom turns SEO issues into plain tasks.