A 301 redirect tells the user that a page has permanently moved to a new URL. 301 redirects have been forgotten: If a page or a whole site recently has been moved, it is possible that proper 301 redirects have not been put in place.They should be able to tell you more or less how long it will take before your website is ready. If this happens, you can either wait for it to fix itself - the website should not be down for more than a couple of minutes after moving it - or you can get in contact with your new website host. The whole site has been moved: If an entire site has been moved/rehosted, you might encounter an HTTP 404 error while the site readjusts to its new place.Moreover, the names of each folder in your URL should match what’s in your CMS or your FTP service. This means that you will need to access every page by its new URL. The page’s directory has been moved: Sometimes moving the page’s containing folder - the directory - the URL for every single page in that folder will change as well.If that does not help, you might need to talk to your website host and let them help you. If you see that the page is placed in the wrong location, you need to move it to the proper location and then try to access it from your browser again. If this happens, you might have to check the pathway to the page and compare it against your file transfer protocol (FTP) service or content management system (CMS). The page is moved: If a page has been moved, it is possible that the page has been placed in the wrong folder.We will explain five reasons why you may be getting a 404 page: It can also happen if the user has a bookmark that leads to a dead-end.
For example, it can happen if the user follows a link on a website, and the link leads to a 404 error message. Reasons why you're getting a 404 page errorĪ user can run into a 404 page in a great variety of ways. For instance, if you refer to someone as “having a 404 error”, it usually means that they are ignorant about a particular topic or maybe even slow to think. This categorization is made by Google’s algorithms.īecause of the 404 error being so frequent on the internet and therefore one of the most well-known errors on the web, it has ended up becoming a meme and a slang term. It is bad for the user experience, and frequency incidences of users being redirected to 404 error pages can lead to the categorization of a website being “untrustworthy” or “low-quality”. If the website cannot find the right page to display, it will give an error instead.Ī 404 page is definitely not a good thing for a website. To explain it more in-depth it means that what is happening is that when you are going to a specific page, your browser is asking that specific website to display something. It can mean that the link is broken or that it does not lead to a valid website or page. Usually it will mean that the page is deleted or has been moved. It indicates that the page you are looking for cannot be found. The error is also known as “404 Page Not Found”. What is a 404 error?Ī HTTP 404 error is one of the most common errors on the web. But what exactly is a 404 error? What are the reasons you are getting a 404 page? And why do 404 errors matter for your SEO? All these questions and many more are answered in the following. TypeError: Cannot read property 'message' of undefinedīackground.404 errors are common, and we have probably all encountered one before while browsing the web. Receiving end does not exist.Įrror in event handler for 'undefined': Cannot read property 'message' of undefined
When trying to communicate between my Content- and Background Script I get the following errors: Port error: Could not establish connection.