Google Search Console and Website Analyzer
Google Search Console can sometimes report odd website crawling errors, e.g. error "404 - not found". These errors are often caused by external factors.
An error often reported for URLs is 404 : Not Found
You may get such errors even if your website has no internal linking errors
and your XML sitemap is 100% correct:
Google follows links from websites all over the internet and remembers these for quite a long time.
In our experience, this means that if some website at some point in time
has linked to a non-existing page at
your website, Google will keep reporting this as an error for a long time.
Examples of how incorrect links to your website can occur on external websites:
- Someone posted and mistyped a link to your website on a forum.
- You posted a link on a website which incorrectly shortened it.