404 errors can have a negative effect on your website’s search ranking and can be frustrating for site users. 404 errors are created when a page or post is deleted. You can fix or minimize 404 errors by redirecting the deleted page to a similar page. We will look at how to do that on a Blogger blog in a moment.
If you are using self-hosted WordPress, the best way to do this is to use .htacess file. Learn how to do that here.
Warning: Redirecting all deleted page to your home page or to an irrelevant page can negatively impact your SEO as well. Only redirect pages to similar pages.
How to do a redirect in Blogger
Step 1
Go to Blogger Dashboard.
Step 2
Go to Setting and click on search preferences as shown in the image below.
Step 3
Click on Edit buttons that show in front of Custom Redirects as shown in the image below.
Step 4
Fill your redirect URLs and click on save changes as shown in the image below.
That's it on how to redirect a page or post to another page of post in Blogger.