What is “404 Not Found” and How to fix it ?

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The 404 Error is an HTTP status code that comes up when the web page the visitor is trying to visit could not be found on the server. This happened when that particular page has been deleted or moved to a new location. Imagine if a website has lots of inactive pages that return this 404 error messages, this will not look good in Google’s eyes and it will eventually hurt your overall website ranking as well.

Therefore, it is always recommended to spend some time to create some creative custom error 404 pages just like the examples below:

404error

So if you’re running your own website, it is recommended that you perform such maintenance check periodically in order to ensure the quality of your site and to prevent such 404 errors from affecting your SEO efforts.

Here are some common ways in which you might see the HTTP 404 error displayed.

How You Might See the 404 Error

  • “404 Error”
  • “404 Not Found”
  • “Error 404”
  • “The requested URL [URL] was not found on this server”
  • “HTTP 404”
  • “Error 404 Not Found”
  • “404 File or Directory Not Found”
  • “HTTP 404 Not Found”
  • “404 Page Not Found”

404 Not Found error messages can appear in any browser or any operating system. Most 404 Not Found errors display inside the Internet browser window just as web pages do.

Cause of HTTP 404 Errors

Technically, an Error 404 is a client-side error, implying that the error is your mistake, either because you typed the URL incorrectly or the page has been moved or removed from the website and you should have known.

Another possibility is if a website has moved a page or resource but did so without redirecting the old URL to the new one. When that happens, you’ll receive a 404 error instead of being automatically routed to the new page.

How To Fix the 404 Not Found Error

  1. Retry the web page by pressing F5, clicking the refresh/reload button, or trying the URL from the address bar again.The 404 Not Found error might appear for several reasons even though no real issue exists, so sometimes a simple refresh will often load the page you were looking for.
  2. Check for errors in the URL. Often times the 404 Not Found error appears because the URL was typed wrong or the link that was clicked on points to the wrong URL.
  3. Move up one directory level at a time in the URL until you find something.For example, if www.web.com/a/b/c.htm gave you the 404 Not Found error, move up to www.web.com/a/b/. If you get nothing here (or an error), move up to www.web.com/a/. This should lead you toward what you’re looking for or at least confirm that it’s no longer available.

    Tip: If you have moved all the way up to the website’s homepage, try to run a search for the information you’re looking for. If the site doesn’t have a search function, try navigating to the page you want using category links to dig deeper into the site.

  1. Search for the page at a popular search engine. It’s possible that you simply have the entirely wrong URL in which case a quick Google or Bing search should get you where you want to go.If you do find the page you were after, update your bookmark or favorite to avoid the HTTP 404 error in the future.
  2. Clear your browser’s cache if you have any indication that the 404 Not Found message might just be yours. For example, if you can reach the URL from your phone but not from your tablet, clearing the cache on your tablet’s browser might help.You might also consider clearing your browser’s cookies or at least the one(s) involved with the website in question if clearing the cache didn’t work.
  3. Change the DNS servers used by your computer but usually only if an entire website is giving you a 404 error, especially if the website is available to those on other networks (e.g. your mobile phone network or a friend in another city).404’s on an entire website isn’t particularly common unless your ISP or government filters/censors websites. No matter the reason, if it does happen, giving another set of DNS servers a try is a good step to take. See my Public DNS Servers List for some alternatives and instructions on doing this.
  4. Finally, if all else fails, contact the website directly. If they’ve removed the page you’re after then the 404 error is completely legitimate and they should be able to tell you that. If they’ve moved the page and are generating 404’s instead of redirecting visitors to the new page, they’ll be happy to hear from you so they can go fix it.See my Website Contact Information list for links to these site’s support-based social network accounts which you can use to report a 404 error or keep up on the problem’s status if it’s widespread. A few websites even have telephone numbers and email addresses!

    Tip: If you suspect that everyone is getting a 404 error for this site, but you’re not sure, a quick check on Twitter might help clear it up. All you have to do is search Twitter for #websitedown, as in #facebookdown or #youtubedown. Twitter users are usually the first to start talking about a website outage.

 

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