What Is A 404 Error Exactly?

post Category: Uncategorized post Comments (1) postMarch 11, 2009

So what is a 404 error anyways?  All we know is that they’re bad, they make people who encounter them aggravated and/or angry and we at Errorlytics have made it our mission to destroy as many as possible.  There’s more to it though and we just want to make sure that you, the user, know what a 404 error is.

According to Wikipedia.org, a 404 Not Found Error Message is

an HTTP standard response code indicating that the client was able to communicate with the server but either the server could not find what was requested, or it was configured not to fulfill the request and did not reveal the reason why. 404 errors should not be confused with “server not found” or similar errors, in which a connection to the destination server could not be made at all.

For a not-so-technical person, that doesn’t help much, so here’s another way of saying it.  When a request is sent to your web server for a specific page, regardless of whether the request comes from a human user’s web browser, or a search engine spider crawling the web, the server returns 1 of many possible “codes”.  When the page requested cannot be found, that’s when a 404 code is returned.  It’s similar to getting that recorded message when you call a number that’s not in service anymore.  Instead of a voice saying “The number you are trying to reach is no longer in service”, however, you get a screen that says “404 Page Not Found”.

There are many cool 404 error pages out there.  Certain people in the world decided that since 404 errors are inevitable, then they might as well get a laugh out of them.  We’ve looked around the web and complied a list of great custom 404 pages, so check them out.  Maybe you’ll get some inspiration for your site.  SEO Best practice dictates, however, that 404 errors be avoided whenever possible and 301 redirects be used.  A 301 is a different server code that tells the requester that while the page they are seeking isn’t in service at this time, they can go to a new place instead to get what they were looking for.

That’s when Errorlytics steps in.  Errorlytics can log all the 404 errors that occur on your site.  After you set up a rule to generate a 301 redirect to a page that you specify, Errorlytics will eliminate that 404 error from ever occuring again.  Any inquiry for that URL will direct the user to the working page that you specify.

1 person has left a comment

#1

Hello!
Very Interesting post! Thank you for such interesting resource!
PS: Sorry for my bad english, I’v just started to learn this language ;)
See you!
Your, Raiul Baztepo

RaiulBaztepo wrote on March 29, 2009 - 12:11 am
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