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.
Best strategy to handle over 100,000 404 errors.
-
I recently been given a site that has over one-hundred thousand 404 error codes listed in Google Webmasters.
It is really odd because according to Google Webmasters, the pages that are linking to these 404 pages are also pages that no longer exist (they are 404 pages themselves).
These errors were a result of site migration that had occurred.
Appreciate any input on how one might go about auditing and repairing large amounts of 404 errors.
Thank you.
-
This is a pretty thorough outline of what you need to do: http://moz.com/blog/web-site-migration-guide-tips-for-seos
My steps are usually:
- Identify pages that get significant organic traffic by pulling the Organic Traffic report in Google Analytics for the past year or so.
- Identify pages that have a significant number of links (or, have links from high traffic sources) in Open Site Explorer.
- Map where that content should be now, and 301 redirect to new pages.
- Completely remove all old pages from the index by 404ing them and making sure that no links on new pages point to old pages.
Sounds quick and simple, but this definitely takes time. Good luck!
-
Kristina - thanks for the feedback.
By any chance, would you have a site migration guideline that you recommend?
-
There really isn't a problem with having 100,000 404 "errors." Google's telling you that it thinks 100,000 pages exist, but when it tries to find them, it's getting a 404 code. That's fine: 404s tell Google that a page doesn't exist and to remove the page from Google's index. That's what we want.
The real problem is with your site migration, as FCBM pointed out. If you properly 301 redirect old pages to new, Google will be redirected to the new page, it won't just hit a 404. If you fix the problems with the site migration (not focusing on Google too much), the 404 errors will naturally subside.
The other option is to just take the hit from the migration, and Google will eventually remove all of these pages from its index and stop reporting on them, as long as there aren't live links pointing to the removed pages.
Good luck!
-
It is a problem with the site migration.
Never the less, I have a site right now with over 100,000 errors dealing with 404.
I'm looking for a game plan on how to deal with this many 404 errors in a time effective way.
Any ideas with type of tools or shortcuts? Has anyone else had to deal with a similar issue?
-
Here's one thought to start the quest. ID if the migration was done correctly.
eg If you had a site that was example.com/mens did the 301 look like newsite.com/mens? If not then you might be having tons of issues with a bad planned migration.
-
The WMT notion helps. Thank you.
The main concern is really timing. Are there any effective ways of going through thousands of 404 pages and finding valuable redirects?
-
404s are not founds which are fine if they are really not found and there isn't a different url to point the original page to. One big issue could be that during the migration the old pages weren't 301'd which would result in tons of 404s.
Go through the 404s and see if they are issues or just relics from old data. Then you can mark in fixed in WMTs.
Hope that helps
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
-
disavow link more than 100,000 lines
I recieved a huge amount of spamy link (most of them has spam score 100) Currently my disavow link is arround 85.000 lines but at least i have 100.000 more domain which i should add them. All of them are domains and i don't have any backlink in my file. My Problem is that google dosen't accept disavow link which are more than 2MB and showes this message : File too big: Maximum file size is 100,000 lines and 2MB What should i do now?
Technical SEO | | sforoughi0 -
Errors In Search Console
Hi All, I am hoping someone might be able to help with this. Last week one of my sites dropped from mid first day to bottom of page 1. We had not been link building as such and it only seems to of affected a single search term and the ranking page (which happens to be the home page). When I was going through everything I went to search console and in crawl errors there are 2 errors that showed up as detected 3 days before the drop. These are: wp-admin/admin-ajax.php showing as response code 400 and also xmlrpc.php showing as response code 405 robots.txt is as follows: user-agent: * disallow: /wp-admin/ allow: /wp-admin/admin-ajax.php Any help with what is wrong here and how to fix it would be greatly appreciated. Many Thanks
Technical SEO | | DaleZon0 -
How big is the problem: 404-errors as result of out of stock products?
We had a discussion about the importance of 404-errors as result of products which are out of stock. Of course this is not good, but what is the leverance in terms of importance: low-medium-high?
Technical SEO | | Digital-DMG0 -
Expired domain 404 crawl error
I recently purchased a Expired domain from auction and after I started my new site on it, I am noticing 500+ "not found" errors in Google Webmaster Tools, which are generating from the previous owner's contents.Should I use a redirection plugin to redirect those non-exist posts to any new post(s) of my site? or I should use a 301 redirect? or I should leave them just as it is without taking further action? Please advise.
Technical SEO | | Taswirh1 -
404 error - but I can't find any broken links on the referrer pages
Hi, My crawl has diagnosed a client's site with eight 404 errors. In my CSV download of the crawl, I have checked the source code of the 'referrer' pages, but can't find where the link to the 404 error page is. Could there be another reason for getting 404 errors? Thanks for your help. Katharine.
Technical SEO | | PooleyK0 -
Google's "cache:" operator is returning a 404 error.
I'm doing the "cache:" operator on one of my sites and Google is returning a 404 error. I've swapped out the domain with another and it works fine. Has anyone seen this before? I'm wondering if G is crawling the site now? Thx!
Technical SEO | | AZWebWorks0 -
Blogs are best when hosted on domain, subdomain, or...?
I’ve heard the it is a best practice to host your blog within your site. I’ve also heard it’s best to put it on a subdomain. What do you believe is the best home for your blog and why?
Technical SEO | | vernonmack0 -
Secondary Menu - nofollow or other strategy?
We have a "secondary main menu" on a site that displays some popular pages of the site. They are in the main navigation of the site as subpages but we wanted to highlight them on every page of the site through this secondary menu. so this secondary menu is the same on every page of the site. So we have the main menu on the top of the site, subpages on the left and this secondary menu below the subpages (in a blue box so they stand out). Is this secondary menu confusing for the structure of the site or negative at all (in relation to robots, not UX)? Should we nofollow these links in the secondary menu? thanks for replies!
Technical SEO | | Motava0