Thursday, June 17, 2010
HyperText Transfer Protocol (or HTTP) response status codes are returned whenever search engines or website visitors make a request to a web server. These three-digit codes indicate the response and status of HTTP requests.
A 404 Error or Page Not Found Error is a standard HTTP Response Code that appears on your Internet browser when the page you requested cannot be found. It is possible that the typed address is incorrect, or the page no longer exists. 404 Error's can be blamed on the website visitor or the Webmaster.
The error page is shown whenever a server can't find the specified page. Unfortunately, most marketers see an error page as a "tech issue" and don't give it a second's thought.
The easiest and most effective way to fix 404 errors, from an SEO perspective, is to use a 301 redirect. 301 is an HTTP response code that signals to the user's browser (as well as Google's search indexing robots) that your content has moved permanently from one URL to another one.
A Custom Error Page is a placeholder for web pages that fail to load when a human visitor and/or a search engine spider tries to view a webpage. Improperly configured Error Pages may also produce duplicate content issues by producing the same content across unique URLs.
It is important to have customized 404 pages with recommended navigational options when website visitors request pages that return a 404 response code.
Report a 404 Response Code: Make sure your server responses back with a 404 Response Code and NOT a 200 Response Code (or any other Response Code) for all URL which doesn't exist in your website.
Robots META Tag 'noindex, follow': You can use <META> 'noindex, follow' tag, inside <head>...</head> section on the Error Page to tell robots not to index the page, but follow the links from the page, which should will your website navigation link (header, footer, top navigation, left navigation, right navigation etc).
<meta name="robots" content="noindex, follow">
Unique Title Tag: Use a unique title tag different from the rest of the title tags on your website.
Normal Crawlable Navigation: The Custom 404 Error Page should look like an error page, but it should still look like your website. By which I mean the error page should have normal navigation of your website (header, footer, top navigation, left navigation etc).
Do NOT Use Any Form of Redirection: It's possible to automatically redirect a 404 error to another page, but that is not good for your SEO as search engines will not remove that Error URL from its index.
Do NOT Use Canonical Tag: Using a Canonical URL tag in Error will create a serious URL confusion for search engines. A homepage link in canonical URL tag of 404 Error page will make no sense and confuse the search engines.
<link rel="canonical" href="http://www.example.com/" />
Web pages that return 404 (File Not Found) for extended periods of time and that have valuable links should be 301 redirected to other web pages.
Joydeep Deb is a Senior Digital Marketer and Technical Marketer with 12+ years of experience in Digital Marketing, Lead Generation, Online Brand Management, Marketing Campaigns, Search Engine Optimization (SEO), Search Engine Marketing (SEM), PPC, eMail Marketing, Web Analytics, Web Technologies, Web Design and Development.
With an MBA in Marketing. Lives in Bangalore, Karnataka - India and working as an Program Manager SEO.
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