Impact of Errors 404 and Referring to Site Migration: Google Tips

Article image Impact of Errors 404 and Referring to Site Migration: Google Tips
Article image Impact of Errors 404 and Referring to Site Migration: Google Tips
Publication date:08.09.2025
Blog category: SEO and Promotion

One day, Reddit user shared his client's website migration experience, which led to a loss of positions in the ratings. He said that it took a few steps to solve problems, including correction of technical problems on the site, forwarding pages with errors 404 to the relevant URL, and submitting these changes to verify at Google Search Console. However, despite the fact that all the forwarding and bugs of 404 were working correctly, he could not confirm the changes to Search Console. It caused him disappointment, and he sought the advice of what to do next. This prompted John Muller to answer and explain how Google processes these changes.

"Mark as Corrected" only tracking as things re -processed. It does not speed up the re -processing process. If pages have to return an error 404, then there is nothing to do. Error 404 for pages that do not exist is normal. It's technically correct to return 404. - John Muller

🚀 For example, if you have a page that should no longer exist and you deliberately return a 404 error, this is the right approach. This means that you do nothing wrong, even if Search Console denotes these 404 errors. Therefore, it is important to understand that 404 mistakes are not always bad.

  • 📌 You need to correctly adjust the forwarding and make sure that new content returns 200 (OK).
  • 📌 Update internal links so that they display new URLs.
  • 📌 Update the site cards with new dates to signal Google to change.
- Why is it important to handle 404 errors? - How does Google handle the forwarding during the site migration? - How to use Google Search Console to track changes during site migration?
🧩 Summary: site migration is a complex process that can temporarily affect the search ratings if not done correctly. Google Search Console is useful to track changes but has its limitations. The verification process checks whether the corrections are properly implemented, not how quickly the changes will be made. Therefore, it is important to be patient and make sure that all technical details - forwarding, content updating and internal links are properly taken into account.
🧠 Own considerations: I believe that the main understanding is that mistakes 404 and forwarding are not unpleasant problems that are difficult to deal with. Instead, they are important aspects of site management that require proper understanding and attention. If you understand how they work, you can use them in your favor to improve SEO and provide smooth migration of your site.