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.
Find all external 404 errors/links?
-
Hi All,
We have recently discovered a site was linking to our site but it was linking to an incorrect url, resulting in a 404 error. We had only found this by pure chance and wondered if there was a tool out there that will tell us when a site is linking to an incorrect url on our site?
Thanks

-
If you dont have access to the logs that could be an issue - not really any automated tools out there as it would need to crawl every website and find 404 errors.
I haven't tried this - so its just an idea. Go into GSC download all the links pointing to your site (and from places like Moz, Ahrefs, Majestic) and then chuck that list of urls into Screaming Frog or URL Profiler and look at external links and see if any are returning a 404. Not sure if this would work - its just an idea.
Thanks
Andy
-
Great, will take a look. Maybe run a trial to see if it does exactly what I need

Thanks for the info!
-
Good idea!
Although some of our clients that we do SEO for aren't hosting their websites on our server and we don't have access to their server logs etc.
Was hoping for an automated dashboard like MOZ/Screaming Frog/ or A hrefs as mentioned above. Due to the amount of clients we have, opening up and running through all there Log files could be time consuming.
Cheers for the info though, may come in use in the future, or to someone else reading this

-
Hi
The best way I have found is to look in your server logs, its the only true place to find out what Google is doing on your site.
Download the logs and look at all the 404 errors - quite simple and depending on size of your logs can take you around 5 minutes worth a work - the longer time period you can analyse in your logs the better.
Thanks
Andy
-
Hi David.
Ahrefs.com offers that service: broken links.
Another way to do that search could be this: Downloading the historic backlinks list and with a mass checker, check where do they point nowdays. I've used GScraper and its option to crawl outbound links.
Best Luck.
GR.
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 Search Console Showing 404 errors for product pages not in sitemap?
We have some products with url changes over the past several months. Google is showing these as having 404 errors even though they are not in sitemap (sitemap shows the correct NEW url). Is this expected? Will these errors eventually go away/stop being monitored by Google?
Technical SEO | | woshea0 -
404 Error Pages being picked up as duplicate content
Hi, I recently noticed an increase in duplicate content, but all of the pages are 404 error pages. For instance, Moz site crawl says this page: https://www.allconnect.com/sc-internet/internet.html has 43 duplicates and all the duplicates are also 404 pages (https://www.allconnect.com/Coxstatic.html for instance is a duplicate of this page). Looking for insight on how to fix this issue, do I add an rel=canonical tag to these 60 error pages that points to the original error page? Thanks!
Technical SEO | | kfallconnect0 -
Yoast SEO. After set up 404 error pages
Hello all, Something strange happened with my blog site. I recently signed to MOZ tools. Initially everything was fine, but during my last crawl I got loads of 404
Technical SEO | | A_Fotografy
pages. Few days ago I was tweaking some settings in SEO plugin according to this post https://moz.com/blog/setup-wordpress-for-seo-success What I noticed was that 404 pages were coming from my blog posts, but for
some reason category was missing in those posts. For example this link is 404
https://a-fotografy.co.uk/inchcolm-island-wedding-photography-bailie The one with category is https://a-fotografy.co.uk/wedding-pictures/inchcolm-island-wedding-photography-bailie/ So basically for some reason category was missing. Please let me know how can I fix this instead of doing hundreds of
redirects now. Thank you,
Regards,
Armands0 -
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.
Technical SEO | | SEO_Promenade0 -
Double Slash // in URL
My client is using double forward slahes in URL like this "//" is this affecting SEO?
Technical SEO | | yanaiguana1110 -
How to find and fix 404 and broken links?
Hi, My campaign is showing me many 404 problems and other tools are also showing me broken links, but the links they show me dose work and I cant seem to find the broken links or the cause of the 404. Can you help?
Technical SEO | | Joseph-Green-SEO0 -
How to find a specific link on my website (currently causing redirects)
Hi everyone, I've used crawlers like Xenu to find broken links before, and I love these tools. What I can't figure out is how to find specific pieces of code within my site. For example, Webmaster Tools tells me there are still links to old pages somewhere on my website but I just can't find them. Do you know of a crawler that can search for a specific link within the html? Thanks in advance, Josh
Technical SEO | | dreadmichael0 -
Does the Referral Traffic from a Link Influence the SEO Value of that Link?
If a link exists, and nobody clicks on it, could it still be valuable for SEO? Say I have 1000 links on 500 sites with Domain Authority ranging from 35 to 80. Let's pretend that 900 of those links generate referral traffic. Let's assume that the remaining 100 links are spread between 10 domains of the 500, but nobody ever clicks on them. Are they still valuable? Should an SEO seek to earn more links like those, even though they don't earn referral traffic? Does Google take referral data into account in evaluating links? 5343313-zelda-rogers-albums-zelda-pictures-duh-what-else-would-they-be-picture3672t-link-looks-so-lonely.jpg Sad%20little%20link.jpg
Technical SEO | | glennfriesen1