© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023
M. EdgarTech SEO Guidehttps://doi.org/10.1007/978-1-4842-9054-5_7

7. Not-Found Errors

Matthew Edgar1  
(1)
Centennial, CO, USA
 

This chapter reviews not-found errors, also called 404 errors. These errors can often hurt a website’s SEO performance if not properly addressed, as well as hurting conversion rates on the website. While many not-found errors do hurt performance, other errors can help performance. This is because not-found errors can be used as a means of signaling to search engines that problematic pages have been removed. Because of the complexity involved with not-found errors, and the potential impacts on performance, it is important to regularly ...

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