Header Response

The header response codes are a major technical problem in SEO. If it's not particularly technical, the topic can be complex (more resources are listed below), but you want to make sure that the work pages return the correct code to the search engines (200) and that not found also returns a code indicating that they are no longer present (in 404). If these codes are incorrect, this may indicate to Google and other search engines that a page "Page not found" is actually a functional page, which makes it look like a thin or duplicate page, or even worse: you can tell Google that the content of your site is actually 404 pages (so that none of your pages is indexed and classified). You can use a server header checker to see the status codes that return your pages when the search engines analyze them.

Incorrect implementation of redirects on your site can have a significant impact on search results. Whenever you can avoid it, you should avoid moving the content of your site from one URL to another. in other words: if your content is on example.com/page and this page generates traffic in search engines, you should avoid moving all content to example.com/different-url/newpage.html, unless it is for a Extremely strong business reason that exceeds a possible short or even long-term loss of search engine traffic. If you need to move content, you want to make sure that you implement permanent redirects (or 301) for content that moves permanently, because temporary (or 302) redirects (often used by developers) tell Google that the movement may not be permanent, and must not transfer any equity link or classification power to the new URL. (Also, changing the structure of your URL could create broken links, which would harm the flow of referral traffic and prevent visitors from browsing your site).