Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Are 404 Errors a bad thing?
-
Good Morning...
I am trying to clean up my e-commerce site and i created a lot of new categories for my parts...
I've made the old category pages (which have had their content removed) "hidden" to anyone who visits the site and starts browsing. The only way you could get to those "hidden" pages is either by knowing the URLS that I used to use or if for some reason one of them is spidering in Google.
Since I'm trying to clean up the site and get rid of any duplicate content issues, would i be better served by adding those "hidden" pages that don't have much or any content to the Robots.txt file or should i just De-activate them so now even if you type the old URL you will get a 404 page...
In this case, are 404 pages bad? You're typically not going to find those pages in the SERPS so the only way you'd land on these 404 pages is to know the old url i was using that has been disabled.
Please let me know if you guys think i should be 404'ing them or adding them to Robots.txt
Thanks
-
Hello Prime85,
Both these answers are correct in their own way, but let me clarify and add my 2 cents.
1. 404s don't hurt your rankings directly, but they can provide a poor user experience.
2. If you keep URLs "live" - then Google can keep these URLs in their index indefinitely. This means search engines may waste time and crawling resources visiting pages you don't want in the index, while ignoring your other pages. This CAN hurt your SEO.
Long story short, (like Brian says) if the page is no longer relevant, you should remove it from the index or redirect it to another URL.
3. Returning a 404 kills all link juice that may have gone to the page, and it can also send confusing signals to search engines about the structure of your site if you have a bunch of pages returning 404s at the same time you have a bunch of new, but similar, pages popping into existence.
The best policy is to set up a 301 redirect from your outdated pages to the most relevant new pages. Don't redirect everything to a single page like the homepage, but instead the redirect to the page that would be most relevant and useful for the user.
On the other hand, if it's a low-value page and there's really no need to redirect it, you should remove it from the index. There's a couple ways to do this:
- Put a meta robots "NOINDEX" tag in the head and wait for Google to crawl the page and process the noindex. It helps if the URL is listed in your sitemap so that they can more easily "find" the url.
- Block the URL through robots.txt, then use Google's Remove URL tool in Webmaster tools
- Return a 404, and use the Remove URL tool
Hope this helps! Best of luck with your SEO.
-
Hi,
Here is what google says about 404s
"Q: Do the 404 errors reported in Webmaster Tools affect my site’s ranking?
A: 404s are a perfectly normal part of the web; the Internet is always changing, new content is born, old content dies, and when it dies it (ideally) returns a 404 HTTP response code. Search engines are aware of this; we have 404 errors on our own sites, as you can see above, and we find them all over the web. In fact, we actually prefer that, when you get rid of a page on your site, you make sure that it returns a proper 404 or 410 response code (rather than a “soft 404”). "" If some URLs on your site 404, this fact alone does not hurt you or count against you in Google’s search results. However, there may be other reasons that you’d want to address certain types of 404s. For example, if some of the pages that 404 are pages you actually care about, you should look into why we’re seeing 404s when we crawl them! If you see a misspelling of a legitimate URL (www.example.com/awsome instead of www.example.com/awesome), it’s likely that someone intended to link to you and simply made a typo. Instead of returning a 404, you could 301 redirect the misspelled URL to the correct URL and capture the intended traffic from that link. You can also make sure that, when users do land on a 404 page on your site, you help them find what they were looking for rather than just saying “404 Not found."
http://googlewebmastercentral.blogspot.com/2011/05/do-404s-hurt-my-site.html
I would recommend you to 301 redirect them to the appropriated page and 404 what you dont find a good page to redirect.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Google is indexing bad URLS
Hi All, The site I am working on is built on Wordpress. The plugin Revolution Slider was downloaded. While no longer utilized, it still remained on the site for some time. This plugin began creating hundreds of URLs containing nothing but code on the page. I noticed these URLs were being indexed by Google. The URLs follow the structure: www.mysite.com/wp-content/uploads/revslider/templates/this-part-changes/ I have done the following to prevent these URLs from being created & indexed: 1. Added a directive in my Htaccess to 404 all of these URLs 2. Blocked /wp-content/uploads/revslider/ in my robots.txt 3. Manually de-inedex each URL using the GSC tool 4. Deleted the plugin However, new URLs still appear in Google's index, despite being blocked by robots.txt and resolving to a 404. Can anyone suggest any next steps? I Thanks!
Technical SEO | | Tom3_150 -
Cookies disabled pointing to a 404 page
Hi mozzers, I am running an audit and disabled cookies on our homepage for testing purposes, this pointed to a 404 http response? I tried on other pages and they were loading correctly. I assume this is not normal? Why this is happening? and could this harm the site's SEO? Thanks!
Technical SEO | | Taysir0 -
Self Referencing Links - Good or Bad?
As an agency we get quite a few of our clients come to us saying "Ooo, this company just contacted me saying they've run an SEO report on my site and we need to improve on these following things" We had one come through the other day that had reported on something we had not seen in any others before. They called them self-referencing links and marked it as a point of action should be taken. They had stated that 100% of the pages on our clients website had self-referencing links. The definition of self-referencing is when there is a link on a page that is linking to the page you are currently on. So for example you're on the home page and there is a link in the nav bar at the top that says "Home" with a link to the home page, the page you are already currently on. Is it bad practice? And if so can we do anything about it as it would seem strange from a UI point of view not to have a consistent navigation. I have not heard anything about this before but I wanted to get confirmation before going back to our client and explaining. Thanks Mozzers!
Technical SEO | | O2C0 -
Error report in Bing Evaluated size of HTML....
Hi Whilst checking Bing's SEO analyser I got this error message for our page www.tidy-books.co.uk/childrens-bookcases "Evaluated size of HTML is estimated to be over 125 KB and risks not being fully cached. (Issue marker for this rule is not visible in the current view)" Just wondering what needs to be done about it and what it actually means? Thanks
Technical SEO | | tidybooks0 -
Will deleting Wordpress tags result in 404 errors or anything?
I want to clean up my tags and I'm worried I'm going to look in my webmasters the next day with hundreds of errors. Whats the best way of doing this?
Technical SEO | | howlusa0 -
Website credits for designers - good or bad
Hi My core service is web design and development. I often place a credit on my clients websites pointing them back to my web design or web development pages. Is this a wise practice with penguin and panda updates? Would this also pull my ranking down?
Technical SEO | | Cocoonfxmedia0 -
Mass 404 Checker?
Hi all, I'm currently looking after a collection of old newspaper sites that have had various developments during their time. The problem is there are so many 404 pages all over the place and the sites are bleeding link juice everywhere so I'm looking for a tool where I can check a lot of URLs at once. For example from an OSE report I have done a random sampling of the target URLs and some of them 404 (eek!) but there are too many to check manually to know which ones are still live and which ones have 404'd or are redirecting. Is there a tool anyone uses for this or a way one of the SEOMoz tools can do this? Also I've asked a few people personally how to check this and they've suggested Xenu, Xenu won't work as it only checks current site navigation. Thanks in advance!
Technical SEO | | thisisOllie0 -
Using Sitemap Generator - Good/Bad?
Hi all I recently purchased the full licence of XML Sitemap Generator (http://www.xml-sitemaps.com/standalone-google-sitemap-generator.html) but have yet used it. The idea behind this is that I can deploy the package on each large e-commerce website I build and the sitemap will be generated as often as I set it be and the search engines will also be pinged automatically to inform them of the update. No more manual XML sitemap creation for me! Now it sounds great but I do not know enough about pinging search engines with XML sitemap updates on a regular basis and if this is a good or bad thing? Can it have any detrimental effect when the sitemap is changing (potentially) every day with new URLs for products being added to the site? Any thoughts or optinions would be greatly appreciated. Kris
Technical SEO | | yousayjump0