If a post in Wordpress has two categories, how can I make it accessible only by one URL?

Question

Search Engine Optimization

Hello! There is a site with articles on Wordpress. Some articles have two headings - main and non-main. I noticed that articles are available at the address with a non-main heading in the url. That is, it turns out on the site, as it were, two identical pages, and search engines "eat" them. What is the best way to make articles at the address with a non-main heading either inaccessible, or so that they redirect to an article with the main heading in the url?

Answer 1

Just url make postname without category