4XX errors or 400 errors indicate
Posted: Sun Dec 22, 2024 8:50 am
that there is a fault in the links you have on your domain.
They are called 400 errors because there are different types such as 401, 40 number code philippines 2, 403, 404.
Normally, you will get a 404 error, which means the URL does not exist.
400 - This is due to a "bad request" or "null request" or a permissions problem in our .htaccess.
401 - This is an authorization failure, usually when entering username and password.
403 - This is a failure to access a file for which you do not have permission.
404 - The most classic of all, it occurs when we access a URL that does not exist.
406 - Occurs when we request something that cannot be interpreted by the server.
It is very normal for URLs to appear and disappear on a domain over time.
Google believes that having 400 errors gives a bad experience to users, and although this is something that happens in almost all domains, we have to solve it.
To fix this, you just need to access the code of the URL where you are getting the error and delete the broken link (sometimes it can also be due to a blockage of the site you are linking to).
There are SEOs who use systems to prevent these types of errors from ever appearing, but in my opinion this is totally inadvisable. If there is an error (whatever it may be) it is better to know that it exists and fix it.
A good practice is to create a good error page so that the user is located when they encounter a 404 and have a good user experience.
Take advantage of these types of pages to direct users where they really need to go.
Sitemap.xml file has format errors
Sitemaps are files that we use to tell Google where our domain information is located. In fact, when it accesses our domain to see if we have something new or modified, it always goes to these files to find out.
It is very common in some CMS such as Joomla, PrestaShop and custom developments, that the sitemap.xml is not generated correctly or that it is even blocking access to Google through the robots.txt file (we will explain what this file is later).
If we have a problem in the sitemap.xml we will mislead Google about what it has to index, we must always ensure that this file is correct.
To solve this, I always advise you to go to a programmer.
It is something so important that it will always be worth solving no matter what the cost.
Another tip when using a sitemap is to segment the information, that is, offer different sitemaps for Google to access independently.
In Google Help you can find an explanation for creating different types of specific sitemaps: videos, images, pages, articles…
Another advantage of segmenting information is that if you have a fault in one of these files, it will always be easier for you to detect where it is located.
In Search Console you have the option to add the sitemaps you have created and, in this way, you will also see if they are correct.
If you have created or modified any sitemap.xml on your domain, I recommend that you delete it from Search Console and re-upload it, this is a way to ensure that they are crawled.
Page has a WWW resolved issue
This error tells us that users (and Google) can access your domain with and without the www.
The “www” is a protocol, that is, a way to access your domain.
The problem is that we can make users see different information under the same URL if we modify this protocol.
Another issue related to this is whether or not to use this slash at the end of each URL “/”.
We have to define whether it will always be carried or not, but we must have a rule for the entire domain in this regard.
This is something that generates errors in the entire strategy and duplicate content if we offer the same information to the user with and without the www.
According to Google, this is not a serious bug.
In my opinion, it can cause indexing problems (number of URLs that are present in Google) and it will cause problems depending on the number of URLs we have in our domain.
If you don't fix this error, you may also be diluting your link building strategy (inbound link / backlink strategy) since users will place the link as they please and, almost certainly, it will not be what best suits our link strategy.
With backlink analysis
Study your backlink profiles and those of your competitors
Enter your domain
Try it now! →
They are called 400 errors because there are different types such as 401, 40 number code philippines 2, 403, 404.
Normally, you will get a 404 error, which means the URL does not exist.
400 - This is due to a "bad request" or "null request" or a permissions problem in our .htaccess.
401 - This is an authorization failure, usually when entering username and password.
403 - This is a failure to access a file for which you do not have permission.
404 - The most classic of all, it occurs when we access a URL that does not exist.
406 - Occurs when we request something that cannot be interpreted by the server.
It is very normal for URLs to appear and disappear on a domain over time.
Google believes that having 400 errors gives a bad experience to users, and although this is something that happens in almost all domains, we have to solve it.
To fix this, you just need to access the code of the URL where you are getting the error and delete the broken link (sometimes it can also be due to a blockage of the site you are linking to).
There are SEOs who use systems to prevent these types of errors from ever appearing, but in my opinion this is totally inadvisable. If there is an error (whatever it may be) it is better to know that it exists and fix it.
A good practice is to create a good error page so that the user is located when they encounter a 404 and have a good user experience.
Take advantage of these types of pages to direct users where they really need to go.
Sitemap.xml file has format errors
Sitemaps are files that we use to tell Google where our domain information is located. In fact, when it accesses our domain to see if we have something new or modified, it always goes to these files to find out.
It is very common in some CMS such as Joomla, PrestaShop and custom developments, that the sitemap.xml is not generated correctly or that it is even blocking access to Google through the robots.txt file (we will explain what this file is later).
If we have a problem in the sitemap.xml we will mislead Google about what it has to index, we must always ensure that this file is correct.
To solve this, I always advise you to go to a programmer.
It is something so important that it will always be worth solving no matter what the cost.
Another tip when using a sitemap is to segment the information, that is, offer different sitemaps for Google to access independently.
In Google Help you can find an explanation for creating different types of specific sitemaps: videos, images, pages, articles…
Another advantage of segmenting information is that if you have a fault in one of these files, it will always be easier for you to detect where it is located.
In Search Console you have the option to add the sitemaps you have created and, in this way, you will also see if they are correct.
If you have created or modified any sitemap.xml on your domain, I recommend that you delete it from Search Console and re-upload it, this is a way to ensure that they are crawled.
Page has a WWW resolved issue
This error tells us that users (and Google) can access your domain with and without the www.
The “www” is a protocol, that is, a way to access your domain.
The problem is that we can make users see different information under the same URL if we modify this protocol.
Another issue related to this is whether or not to use this slash at the end of each URL “/”.
We have to define whether it will always be carried or not, but we must have a rule for the entire domain in this regard.
This is something that generates errors in the entire strategy and duplicate content if we offer the same information to the user with and without the www.
According to Google, this is not a serious bug.
In my opinion, it can cause indexing problems (number of URLs that are present in Google) and it will cause problems depending on the number of URLs we have in our domain.
If you don't fix this error, you may also be diluting your link building strategy (inbound link / backlink strategy) since users will place the link as they please and, almost certainly, it will not be what best suits our link strategy.
With backlink analysis
Study your backlink profiles and those of your competitors
Enter your domain
Try it now! →