What is 404?

[johnmith]

Not Found - The server was unable to locate the URL.
Some content management systems send 404 status codes when documents do exist. Ensure files that exist do give a 200 status code and requests for files that do not exist give a 404 status code. You may also want to check with your host to see if you can set up a custom 404 error page which makes it easy for site visitors to

• view your most popular and / or most relevant navigational options
• report navigational problems within your site

[sbonline]

Search engines such as Google will flag up if you have 404 errors via webmaster tools.

You can also re-direct them to remove such errors by creating and utilising a .htaccess file and uploading it to your website via FTP.

[mikey45]

While removing the unnecessary link, you might have removed other files from the website server, whose links are still present. 404 message is for missing files and directories in the website server.

[margijani1]

404 Error means page doesn't found in the websites.Soemtimes links are broken then you fetched 404 not found error.You will find URL errors in webmaster tools.You removed url errors that will good in terms of Search engine optimization.It will not giving bad effects in search engine.

[bobby07]

404 error is broken link means error on website URL.

[tinasmith1097]

The 404 Not Found error, often called Error 404 or an HTTP 404 error, means that the web page you were trying to load was not found.