If you are seeing a page not found page

As I have been updating the format of a lot of my pages I have been renaming the files and manipulating the search results.

Many of the old pages remain in search engine indices and will take time to correct. If you have followed a link from an existing page you may be able to find the new page by adding _3 to the URL.

For example: https://tempusfugit.me.uk/google_search_console.html is now https://tempusfugit.me.uk/google_search_console_3.html

I should have used a 301 Redirect

Since this time I have worked this out