Website 404 error page impact on SEO effect

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When your site has part of the page because of the revision or delete the old page, resulting in search engine access to the page return 404 error code, in fact, this is normal, but some stationmaster in order to not lose these invalid pages brought traffic, but chose the custom 404 error page of the processing method, Direct these traffic to the home page or other pages of the site, do this while keeping part of the flow, but this time the search engine is the weight of some of your site's keywords to reduce, and the page included also significantly reduced, I had encountered such a situation, and then the custom 404 error cancellation, keyword ranking recovery, Included normal, so recommend doing SEO is best not to customize 404 errors.

Here's how it works: because when these 404 error pages are accessed by the search engine, the code that returns to the search engine is a 404 status code, but the custom later, for example, becomes a 200 status code, the search engine will think that the non-existent pages actually exist, When a large number of error URLs are detected by the search engine is 200 status code, it will be the search engine is the existence of Web pages, and is a large number of duplicate pages, so that the right to drop or reduce the collection is very normal, so if you want to customize, please make sure you define the status code is

Source: Guangxi Lao Wu SEO Training

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