Skip to content
    Moz logo Menu open Menu close
    • Products
      • Moz Pro
      • Moz Pro Home
      • Moz Local
      • Moz Local Home
      • STAT
      • Moz API
      • Moz API Home
      • Compare SEO Products
      • Moz Data
    • Free SEO Tools
      • Domain Analysis
      • Keyword Explorer
      • Link Explorer
      • Competitive Research
      • MozBar
      • More Free SEO Tools
    • Learn SEO
      • Beginner's Guide to SEO
      • SEO Learning Center
      • Moz Academy
      • MozCon
      • Webinars, Whitepapers, & Guides
    • Blog
    • Why Moz
      • Digital Marketers
      • Agency Solutions
      • Enterprise Solutions
      • Small Business Solutions
      • The Moz Story
      • New Releases
    • Log in
    • Log out
    • Products
      • Moz Pro

        Your all-in-one suite of SEO essentials.

      • Moz Local

        Raise your local SEO visibility with complete local SEO management.

      • STAT

        SERP tracking and analytics for enterprise SEO experts.

      • Moz API

        Power your SEO with our index of over 44 trillion links.

      • Compare SEO Products

        See which Moz SEO solution best meets your business needs.

      • Moz Data

        Power your SEO strategy & AI models with custom data solutions.

      Let your reputation grow with Reviews AI
      Moz Local

      Let your reputation grow with Reviews AI

      Learn more
    • Free SEO Tools
      • Domain Analysis

        Get top competitive SEO metrics like DA, top pages and more.

      • Keyword Explorer

        Find traffic-driving keywords with our 1.25 billion+ keyword index.

      • Link Explorer

        Explore over 40 trillion links for powerful backlink data.

      • Competitive Research

        Uncover valuable insights on your organic search competitors.

      • MozBar

        See top SEO metrics for free as you browse the web.

      • More Free SEO Tools

        Explore all the free SEO tools Moz has to offer.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      Learn more
    • Learn SEO
      • Beginner's Guide to SEO

        The #1 most popular introduction to SEO, trusted by millions.

      • SEO Learning Center

        Broaden your knowledge with SEO resources for all skill levels.

      • On-Demand Webinars

        Learn modern SEO best practices from industry experts.

      • How-To Guides

        Step-by-step guides to search success from the authority on SEO.

      • Moz Academy

        Upskill and get certified with on-demand courses & certifications.

      • MozCon

        Save on Early Bird tickets and join us in London or New York City

      Unlock flexible pricing & new endpoints
      Moz API

      Unlock flexible pricing & new endpoints

      Find your plan
    • Blog
    • Why Moz
      • Digital Marketers

        Simplify SEO tasks to save time and grow your traffic.

      • Small Business Solutions

        Uncover insights to make smarter marketing decisions in less time.

      • Agency Solutions

        Earn & keep valuable clients with unparalleled data & insights.

      • Enterprise Solutions

        Gain a competitive edge in the ever-changing world of search.

      • The Moz Story

        Moz was the first & remains the most trusted SEO company.

      • New Releases

        Get the scoop on the latest and greatest from Moz.

      Surface actionable competitive intel
      New Feature

      Surface actionable competitive intel

      Learn More
    • Log in
      • Moz Pro
      • Moz Local
      • Moz Local Dashboard
      • Moz API
      • Moz API Dashboard
      • Moz Academy
    • Avatar
      • Moz Home
      • Notifications
      • Account & Billing
      • Manage Users
      • Community Profile
      • My Q&A
      • My Videos
      • Log Out

    The Moz Q&A Forum

    • Forum
    • Questions
    • Users
    • Ask the Community

    Welcome to the Q&A Forum

    Browse the forum for helpful insights and fresh discussions about all things SEO.

    1. Home
    2. SEO Tactics
    3. Technical SEO
    4. Best 404 Error Checker?

    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 404 Error Checker?

    Technical SEO
    3
    3
    9631
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as question
    Log in to reply
    This topic has been deleted. Only users with question management privileges can see it.
    • anchorwave
      anchorwave Subscriber last edited by

      I have a client with a lot of 404 errors from Web Master Tools, and i have to go through and check each of the links because

      • Some redirect to the correct page
      • Some redirect to another url but its a 404 error
      • Some are just 404 errors

      Does anyone know of a tool where i can dump all of the urls and it will tell me

      • If the url is redirected, and to where
      • if the page is a 404 or other error

      Any tips or suggestions will be really appreciated!

      Thanks SEO Moz'rs

      1 Reply Last reply Reply Quote 0
      • Alex-Harford
        Alex-Harford last edited by

        Check out the free Xenu Link Sleuth and this post: http://www.seomoz.org/blog/xenu-link-sleuth-more-than-just-a-broken-links-finder

        I haven't used it myself (yet), but Screaming Frog could help as an alternative, though the full version is paid. This post compares the two: http://www.seomoz.org/blog/crawler-faceoff-xenu-vs-screaming-frog

        1 Reply Last reply Reply Quote 1
        • afmaury
          afmaury last edited by

          Have you tried the SEOmoz Crawl Diagnostics report? That will show the 404 errors and the pages on the site that have the links to those pages.

          1 Reply Last reply Reply Quote 1
          • 1 / 1
          • First post
            Last post

          Got a burning SEO question?

          Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.


          Start my free trial


          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.

          • See all categories

          Related Questions

          • RichHamilton_qcs

            Best practices for types of pages not to index

            Trying to better understand best practices for when and when not use a content="noindex".  Are there certain types of pages that we shouldn't want Google to index?  Contact form pages, privacy policy pages, internal search pages, archive pages (using wordpress).  Any thoughts would be appreciated.

            Technical SEO | | RichHamilton_qcs
            0
          • I.AM.Strategist

            Best Practice for www and non www

            How is the best way to handle all the different variations of a website in terms of www | non www | http | https? In Google Search Console, I have all 4 versions and I have selected a preference. In Open Site Explorer I can see that the www and non www versions are treated differently with one group of links pointing to each version of the same page. This gives a different PA score. eg. http://mydomain.com DA 25 PA 35 http://www.mydomain.com DA 19 PA 21 Each version of the home page having it's only set of links and scores. Should I try and "consolidate" all the scores into one page? Should I set up redirects to my preferred version of the website? Thanks in advance

            Technical SEO | | I.AM.Strategist
            0
          • AliMac26

            Duplicate content and 404 errors

            I apologize in advance, but I am an SEO novice and my understanding of code is very limited. Moz has issued a lot (several hundred) of duplicate content and 404 error flags on the ecommerce site my company takes care of. For the duplicate content, some of the pages it says are duplicates don't even seem similar to me. additionally, a lot of them are static pages we embed images of size charts that we use as popups on item pages. it says these issues are high priority but how bad is this? Is this just an issue because if a page has similar content the engine spider won't know which one to index? also, what is the best way to handle these urls bringing back 404 errors? I should probably have a developer look at these issues but I wanted to ask the extremely knowledgeable Moz community before I do 🙂

            Technical SEO | | AliMac26
            0
          • Pete4

            Why is Google Webmaster Tools showing 404 Page Not Found Errors for web pages that don't have anything to do with my site?

            I am currently working on a small site with approx 50 web pages.  In the crawl error section in WMT Google has highlighted over 10,000 page not found errors for pages that have nothing to do with my site.  Anyone come across this before?

            Technical SEO | | Pete4
            0
          • Oxfordcomma

            Increase 404 errors or 301 redirects?

            Hi all, I'm working on an e-commerce site that sells products that may only be available for a certain period of time. Eg. A product may only be selling for 1 year and then be permanently out of stock. When a product goes out of stock, the page is removed from the site regardless of any links it may have gotten over time. I am trying to figure out the best way to handle these permanently out of stock pages. At the moment, the site is set up to return a 404 page for each of these products. There are currently 600 (and increasing) instances of this appearing on Google Webmasters. I have read that too many 404 errors may have a negative impact on your site, and so thought I might 301 redirect these URLs to a more appropriate page. However I've also read that too many 301 redirects may have a negative impact on your site. I foresee this to be an issue several years down the road when the site has thousands of expired products which will result in thousands of 404 errors or 301 redirects depending on which route I take. Which would be the better route? Is there a better solution?

            Technical SEO | | Oxfordcomma
            0
          • Prime85

            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

            Technical SEO | | Prime85
            0
          • MaartenvandenBos

            403 forbidden error website

            Hi Mozzers, I got a question about new website from a new costumer http://www.eindexamensite.nl/. There is a 403 forbidden error on it, and I can't find what the problem is. I have checked on: http://gsitecrawler.com/tools/Server-Status.aspx
            result:
            URL=http://www.eindexamensite.nl/ **Result code: 403 (Forbidden / Forbidden)** When I delete the .htaccess from the server there is a 200 OK :-). So it is in the .htaccess. .htaccess code: ErrorDocument 404 /error.html RewriteEngine On
            RewriteRule ^home$ / [L]
            RewriteRule ^typo3$ - [L]
            RewriteRule ^typo3/.$ - [L]
            RewriteRule ^uploads/.$ - [L]
            RewriteRule ^fileadmin/.$ - [L]
            RewriteRule ^typo3conf/.$ - [L]
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteCond %{REQUEST_FILENAME} !-d
            RewriteCond %{REQUEST_FILENAME} !-l
            RewriteRule .* index.php Start rewrites for Static file caching RewriteRule ^(typo3|typo3temp|typo3conf|t3lib|tslib|fileadmin|uploads|screens|showpic.php)/ - [L]
            RewriteRule ^home$ / [L] Don't pull *.xml, *.css etc. from the cache RewriteCond %{REQUEST_FILENAME} !^..xml$
            RewriteCond %{REQUEST_FILENAME} !^..css$
            RewriteCond %{REQUEST_FILENAME} !^.*.php$ Check for Ctrl Shift reload RewriteCond %{HTTP:Pragma} !no-cache
            RewriteCond %{HTTP:Cache-Control} !no-cache NO backend user is logged in. RewriteCond %{HTTP_COOKIE} !be_typo_user [NC] NO frontend user is logged in. RewriteCond %{HTTP_COOKIE} !nc_staticfilecache [NC] We only redirect GET requests RewriteCond %{REQUEST_METHOD} GET We only redirect URI's without query strings RewriteCond %{QUERY_STRING} ^$ We only redirect if a cache file actually exists RewriteCond %{DOCUMENT_ROOT}/typo3temp/tx_ncstaticfilecache/%{HTTP_HOST}/%{REQUEST_URI}/index.html -f
            RewriteRule .* typo3temp/tx_ncstaticfilecache/%{HTTP_HOST}/%{REQUEST_URI}/index.html [L] End static file caching DirectoryIndex index.html CMS is typo3. any ideas? Thanks!
            Maarten

            Technical SEO | | MaartenvandenBos
            0
          • AJ234

            404 errors on non-existent URLs

            Hey guys and gals, First Moz Q&A for me and really looking forward to being part of the community. I hope as my first question this isn't a stupid one but I was just struggling to find any resource that dealt with the issue and am just looking for some general advice. Basically a client has raised a problem with 404 error pages - or the lack thereof- on non-existent URLs on their site; let's say for example: 'greatbeachtowels.com/beach-towels/asdfas' Obviously content never existed on this page so its not like you're saying 'hey, sorry this isn't here anymore'; its more like- 'there was never anything here in the first place'. Currently in this fictitious example typing in 'greatbeachtowels.com/beach-towels/asdfas**'** returns the same content as the 'greatbeachtowels.com/beach-towels' page which I appreciate isn't ideal. What I was wondering is how far do you take this issue- I've seen examples here on the seomoz site where you can edit the URI in a similar manner and it returns the same content as the parent page but with the alternate address. Should 404's be added across all folders on a site in a similar way? How often would this scenario be and issue particularly for internal pages two or three clicks down? I suppose unless someone linked to a page with a misspelled URL... Also would it be worth placing 301 redirects on a small number of common mis-spellings or typos e.g. 'greatbeachtowels.com/beach-towles' to the correct URLs as opposed to just 404s? Many thanks in advance.

            Technical SEO | | AJ234
            0

          Get started with Moz Pro!

          Unlock the power of advanced SEO tools and data-driven insights.

          Start my free trial
          Products
          • Moz Pro
          • Moz Local
          • Moz API
          • Moz Data
          • STAT
          • Product Updates
          Moz Solutions
          • SMB Solutions
          • Agency Solutions
          • Enterprise Solutions
          • Digital Marketers
          Free SEO Tools
          • Domain Authority Checker
          • Link Explorer
          • Keyword Explorer
          • Competitive Research
          • Brand Authority Checker
          • Local Citation Checker
          • MozBar Extension
          • MozCast
          Resources
          • Blog
          • SEO Learning Center
          • Help Hub
          • Beginner's Guide to SEO
          • How-to Guides
          • Moz Academy
          • API Docs
          About Moz
          • About
          • Team
          • Careers
          • Contact
          Why Moz
          • Case Studies
          • Testimonials
          Get Involved
          • Become an Affiliate
          • MozCon
          • Webinars
          • Practical Marketer Series
          • MozPod
          Connect with us

          Contact the Help team

          Join our newsletter
          Moz logo
          © 2021 - 2025 SEOMoz, Inc., a Ziff Davis company. All rights reserved. Moz is a registered trademark of SEOMoz, Inc.
          • Accessibility
          • Terms of Use
          • Privacy

          Looks like your connection to Moz was lost, please wait while we try to reconnect.