(Google Index/Remove URLs) is good way? Does 404 url permanently Removed from this way? I want dont show again 404 urls in the webmaster How can remove 404 urls ?
To remove 404 URLs: Sign in to your webmaster account Click on the site you have added to webmaster At the left side you will see some categories One of those categories is Google Index Click on that You will see 3 sub categories one of which is Remove URLs Click on that and remove those urls that show 404 errors.
I assume you want to remove URLs from the 404 error list found under Crawl >> Crawl Errors in your Webmaster tools account? I also assume that you've fixed the 404 errors that are listed. Once the URL no longer returns a 404 error, simply check the box next to the error in Webmaster tools, and then click the red button that says "mark as fixed." At this point, the error will disappear from the list. The total number of errors listed in the tab above the graph won't decrease until Google goes back and verifies that they've been fixed. If you mark something as fixed that Google finds broken again, it will reappear on the list.
Assumption made on WordPress: One of the examples of such 404 error in WordPress is your posting date was in this format domainURL/06-12-2013/title and you set permalinks to URL/simple-post. Therefore, change the setting to: domainUR/2014/01/02/sample-post/. This perhaps fixed many 404 errors. Another thing I like to do is delete those post tags with zero value Have a great day!
You can delete this list from Webmaster Tools but it will re-appear if your 404s still exist. If you click on them you can get information about where they are linked from. You can use external tools to review this list (it will re-check each time) or you may want to use some site-crawler where you're linking to these pages. Or you can use a log analyser to check your logs and see where the referrers are coming from. It will show the referrers.
Is it better to remove the 404 pages in webmaster tools or is there any benefit in 301 redirecting them to the most similar page on your website?