Hello @loloshka,
Thanks for reaching out. Yoast SEO adds a noindextag to your internal site search results. This hidden feature is based on Google’s Search Essentials documentation. Google wants to prevent users from going from a search result in Google to a search result page on a website. Google, justly, considers that bad user experience. You can tell search engines not to include a certain page in their search results by adding a noindex tag to a page. Because of Google’s guidelines, Yoast SEO tells search engines that they shouldn’t display your internal search results pages in their search results with a noindex tag. But the links on these pages can still be followed and counted, which is better for your SEO. The plugin tells them not to show these pages in the search results; the links on these pages can still be followed and counted, which is better for SEO.
We also have the Internal site search cleanup feature in the plugin. Your internal site search can create lots of confusing URLs for search engines, and can even be used as a way for SEO spammers to attack your site. Most sites will benefit from experimenting with these protections and optimizations, even if you don’t have a search feature in your theme. You can find the setting in WordPress > Yoast SEO > Settings > Advanced > Crawl Optimization
