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.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      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. 404 Errors After Site Migration

    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.

    404 Errors After Site Migration

    Technical SEO
    2
    4
    1155
    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.
    • ShopChameleon
      ShopChameleon last edited by

      Hello -

      I'm working on a website selling fashion accessories.  The site just went through a site migration from Yahoo! to Big Commerce.  Now we have a high level of warnings and errors from the crawl.  Few are mentioning sites I never seen before on the Yahoo! platform. I also notice that the pages crawled has doubled.  How can I fix or did I do something wrong with migration?

      I was running the website with minimal errors and now overwhelmed with errors all the error updates.  If I can get some assistance on what could be wrong, I would greatly appreciate.

      Thanks.

      1 Reply Last reply Reply Quote 0
      • josh-riley
        josh-riley @ShopChameleon last edited by

        Well, I myself can't tell you why those pages would have errors - I don't know your site to know what is right/wrong or what your folder structure needs to be to ensure the path is correct. Or, as things that have happened to me, for example, in Google Webmaster tools, I'll get notification for 404's to my site pages...even though those pages don't exist. What do I mean? I mean someone linked to my site, but messed up the URL so they (unintentionally) created a bad URL that Google associated with my site. So when you say you have a high amount of errors/warnings, I'd just suggest looking at what  tool is providing that information to determine how credible that is.

        As for those URLs you shared, are all those legit pages but aren't rendering correctly? Or, are they not real pages at all but somehow the URL was created in the move? (Someone else may be better at chiming in there other than myself.)

        I suggest going back and redirecting all the bad pages to a good page, or serve up your 404 page for any bad links you want to fall out.

        Even with errors, sites can do better with traffic if the migration means that the site is more crawlable and that along with the migration, if it's easier for search engines to figure out what your site is about and match it to search queries.

        1 Reply Last reply Reply Quote 0
        • ShopChameleon
          ShopChameleon @josh-riley last edited by

          Thanks much Andrea, I'm so very new to SEO and all the errors freaking me out!

          Yes the migration changed the URL structure.  I thought I went through them very carefully to make sure each URL matched (not sure why not all of the URL successfully submitted with matched URLs).

          I also upload all the previous redirects via Yahoo onto the new platform.

          I updated the new sitemap to the search engines (Google, Yahoo)

          For example, the below links showing as errors and can't figure as too why.  I updated the sitemap:

          http://www.shopchameleon.com/a-black-mesh-bow-belt/index.html

          http://www.shopchameleon.com/a-black-mesh-bow-belt/privacypolicy.html

          http://www.shopchameleon.com/ballerina-cool-earring/testimonials.html

          But also strange that when migrated and w/ all these errors the website is getting double amount of traffic??

          josh-riley 1 Reply Last reply Reply Quote 0
          • josh-riley
            josh-riley last edited by

            Wondering if you can give a bit more background -  so did the migration change your URLs/URL structure? If so, what was your link plan to set up redirects from the old URLs to the new ones? Did you update your site map to indicate to the search engines you've migrated? Did you 404 any old content that you weren't moving?

            As for your comment "Few are mentioning sites I never seen before on the Yahoo! platform" I'm not sure what you mean - what sites are you referring to? Yours? Sites that were linking to your old site...?

            ShopChameleon 1 Reply Last reply Reply Quote 0
            • 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

            • Extima-Christian

              Sitemap error in Webmaster tools - 409 error (conflict)

              Hey guys, I'm getting this weird error when I submit my sitemap to Google. It says I'm getting a 409 error in my post-sitemap.xml file (https://cleargear.com/post-sitemap.xml). But when I check it, it looks totally fine. I am using YoastSEO to generate the sitemap.xml file. Has anyone else experienced this? Is this a big deal? If so, Does anyone know how to fix? Thanks EwTswL4

              Technical SEO | | Extima-Christian
              0
            • MarketHubb

              Help Setting Up 301 Redirects from Coldfusion Site to Wordpress Site.

              I have created a new website and need to redirect all of the previous pages to the new one. The old website was built in coldfusion and the new site is built in wordpress. One of the pages I'm trying to redirect is www.norriseal.com/products.cfm to http://norrisealwellmark.com/products/. This is what I have in my .htaccess file <ifmodule mod_rewrite.c="">Options +FollowSymlinks
              RewriteEngine On
              RewriteBase /
              Redirect 301 /products.cfm http://norrisealwellmark.com/products/</ifmodule> The result of this redirect is http://norrisealwellmark.com/products.cfm How do I prevent the .cfm from appending to the destination URL?

              Technical SEO | | MarketHubb
              1
            • ReSEOlve

              404 errors

              Hi I am getting these show up in WMT crawl error any help would be very much appreciated | ?escaped_fragment=Meditation-find-peace-within/csso/55991bd90cf2efdf74ec3f60 | 404 | 12/5/15 |
              | | 2 | mobile/?escaped_fragment= | 404 | 10/26/15 |
              | | 3 | ?escaped_fragment=Tips-for-a-balanced-lifestyle/csso/1 | 404 | 12/1/15 |
              | | 4 | ?escaped_fragment=My-favorite-yoga-spot/csso/5598e2130cf2585ebcde3b9a | 404 | 12/1/15 |
              | | 5 | ?escaped_fragment=blog/c19s6 | 404 | 11/29/15 |
              | | 6 | ?escaped_fragment=blog/c19s6/Tag/yoga | 404 | 11/30/15 |
              | | 7 | ?escaped_fragment=Inhale-exhale-and-once-again/csso/2 | 404 | 11/27/15 |
              | | 8 | ?escaped_fragment=classes/covl | 404 | 10/29/15 |
              | | 9 | m/?escaped_fragment= | 404 | 10/26/15 |
              | | 10 | ?escaped_fragment=blog/c19s6/Page/1 | 404 | 11/30/15 | |   |

              Technical SEO | | ReSEOlve
              0
            • Rezza

              Migrating to new subdomain with new site and new content.

              Our marketing department has decided that a new site with new content is needed to launch new products and support our existing ones. We cannot use the same subdomain(www = old subdomain  and ww1 = new subdomain)as there is a technically clash between the windows server currently used, and the lamp stack required to run the new wordpress based CMS and site. We also have an aging piece of SAAS software on the www domain which is makes moving it to it's own subdomain far too risky. 301's have been floated as a way of managing the transition. I'm not too keen on that idea due to the double effect of new subdomain and content, and the SEO impact it might have. I've suggested uploading the new site to the new subdomain while leaving the old site in place. Then gradually migrating sections over before turning parts of the old site off and using a 301 at that point to finalise the move. The old site would inform user's there is a new version and it would then convert them to the new site(along with a cookie to auto redirect them in future.) while still leaving the old content in place for existing search traffic, bookmarks and visitors via static URLs. Before turning off sections on the old site we would create rel canonicals to redirect to the new pages based on a a mapped set of URLs(this in itself concerns me as the rel canonical is essentially linking to different content). Would be grateful for any advice on whether this strategy is flawed or whether another strategy might be more suitable?

              Technical SEO | | Rezza
              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
            • tutarmi

              Seo For Forum Sites

              I have forum site.I've opened it 2 months ago.But there is a problem.Therefore my content is unique , my site's keyword ranking constantly changing..Sometimes my site's ranking drops from first 500.After came to 70s. I didn't make any off page seo to my site.What is the problem ?

              Technical SEO | | tutarmi
              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
            • GriffinHansen

              What are the pros and cons of moving one site onto a subdomain of another site?

              Two sites. One has weaker sales. What would the benefits and problems for SEO of moving the weak site from its own domain to a subdomain of the stronger site?

              Technical SEO | | GriffinHansen
              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
            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.