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.

      Track AI Overviews in Keyword Research
      Moz Pro

      Track AI Overviews in Keyword Research

      Try it free!
    • 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
    • My Q&A
    • 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. Diagnosing Canonical Errors Is Screaming frog reliable?

    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.

    Diagnosing Canonical Errors Is Screaming frog reliable?

    Technical SEO
    3
    9
    2205
    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.
    • Nightwing
      Nightwing last edited by

      Morning from suny & warm wetherby UK 🙂

      On this page http://www.goldsboroughestates.co.uk/how-we-care-for-you/right-to-manage/ screaming frog is citing a canonical error but I'm confused as this piece of code is in place:

      http://www.goldsboroughestates.co.uk/About/right-to-manage" />

      So my question is please - "Does this page  http://www.goldsboroughestates.co.uk/how-we-care-for-you/right-to-manage/ have a caninical error or is screaming frog useless?

      Other examples where screaming frog is picking up canonical errors include:
      http://www.goldsboroughestates.co.uk/what-our-customers-say/right-to-manage/
      http://www.goldsboroughestates.co.uk/buying-a-home/right-to-manage/

      Oh forgot to say the preffered version is http://www.goldsboroughestates.co.uk/About/right-to-manage/

      Any insights welcvome 🙂

      1 Reply Last reply Reply Quote 0
      • Keszi
        Keszi @Nightwing last edited by

        Hey,

        Long time since the Question, I was just wondering if you worked it out or not.

        Gr.,

        Istvan

        1 Reply Last reply Reply Quote 0
        • Dr-Pete
          Dr-Pete Staff @Nightwing last edited by

          I think Screaming Frog is just warning you that the canonical version doesn't seem to match the display URL. They can't really tell (we have the same problem in SEOmoz tools) what the "right" canonical is - they can just warn of a mismatch.

          I'm a bit confused as to the purpose of the dual URLs here. The best canonical implementation is to use one URL. The canonical tag can act as a band-aid, but  consistency is still the best defense. Having multiple paths to the same page is rarely beneficial.

          1 Reply Last reply Reply Quote 0
          • Nightwing
            Nightwing @Nightwing last edited by

            Having spoke to oiur internal helpdesk (Who I trust & do know what theyre talking about) theyve taken a look at:

            http://www.goldsboroughestates.co.uk/footer-links/left/right-to-manage/

            http://www.goldsboroughestates.co.uk/how-we-care-for-you/right-to-manage/

            http://www.goldsboroughestates.co.uk/buying-a-home/right-to-manage/

            http://www.goldsboroughestates.co.uk/what-our-customers-say/right-to-manage/

            and I'm afraid they have a different perspective which is they see no canonical problem 😞 Hey ho think I'll just set my head on fire then maybe things will be more clearer 😉

            1 Reply Last reply Reply Quote 0
            • Nightwing
              Nightwing @Nightwing last edited by

              Hi Istvan - your advice is good but ive just discovered its not been implemented! Time to kick some ass, I'll update you 🙂

              1 Reply Last reply Reply Quote 0
              • Keszi
                Keszi @Nightwing last edited by

                Hey,

                Any news on how it went? I am curious if that was the problem or not. 🙂

                Gr.,

                Istvan

                1 Reply Last reply Reply Quote 0
                • Keszi
                  Keszi @Nightwing last edited by

                  Hey,

                  Maybe this helps you a littlebit: http://www.seomoz.org/blog/an-seos-guide-to-http-status-codes

                  Dr. Pete's article explains well how the status codes work.

                  Gr.,

                  Istvan

                  1 Reply Last reply Reply Quote -1
                  • Nightwing
                    Nightwing @Keszi last edited by

                    Wow great anser, I'm on to this now & will updat you with how things went 🙂

                    Keszi Nightwing Dr-Pete 6 Replies Last reply Reply Quote 0
                    • Keszi
                      Keszi last edited by

                      Hey there!

                      I think I have found what your problem is with you canonical link 🙂

                      In your code you have:

                      And probably you are somewhere forcing the URls to have a / at the end.

                      So basically you are confusing browsers and search engine bots, because they now cannot tell which is the real version:

                      SE enters the page. Then it sees that the right version should be the one WITHOUT a "/" at the end, then that pages has a 301 redirect to the version which HAS a "/" at the end of the URL (but that has a canonical which points out that the preffered version should be ). So it is a non-ending circle.

                      So if you add a / to the end of your URl, your problem should be solved.

                      Final thought: Screaming Frog is working well.

                      I hope this was a solution.

                      Cheers,

                      Istvan

                      Nightwing 1 Reply Last reply Reply Quote 2
                      • 1 / 1
                      • First post
                        Last post

                      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

                      • GhillC

                        Broken canonical link errors

                        Hello, Several tools I'm using are returning errors due to "broken canonical links". However, I'm not too sure why is that. Eg.
                        Page URL: domain.com/page.html?xxxx
                        Canonical link URL: domain.com/page.html
                        Returns an error. Any idea why? Am I doing it wrong? Thanks,
                        G

                        Technical SEO | | GhillC
                        1
                      • DaleZon

                        Search Console Errors 400 and 405

                        Hi, Does anyone know if search console errors showing as follows are damaging to serps: /xmlrpc.php is returning 405 error /wp-admin/admin-ajax.php is returning 400 error These errors seem to of coincided almost to the day that there was a ranking drop for the primary keyword from mid page 1 to bottom of page 2. No matter what I do I cannot seem to correct these errors. Any advice would be greatly appreciated. Thanks

                        Technical SEO | | DaleZon
                        0
                      • Merkle-Impaqt

                        Can you use Screaming Frog to find all instances of relative or absolute linking?

                        My client wants to pull every instance of an absolute URL on their site so that they can update them for an upcoming migration to HTTPS (the majority of the site uses relative linking). Is there a way to use the extraction tool in Screaming Frog to crawl one page at a time and extract every occurrence of _href="http://" _? I have gone back and forth between using an x-path extractor as well as a regex and have had no luck with either. Ex. X-path: //*[starts-with(@href, “http://”)][1] Ex. Regex: href=\”//

                        Technical SEO | | Merkle-Impaqt
                        0
                      • EcommerceSite

                        Screaming Frog showing 503 status code. Why?

                        Screaming Frog is showing a 503 code for images. If I go and use a header checker like SEOBook it shows 200. Why would that be? Here is an example link- http://germanhausbarn.com/wp-content/uploads/2014/07/36-UPC-5145536-John-Deere-Stoneware-Logo-Mug-pair-25.00-Heavy-4-mugs-470x483.jpg

                        Technical SEO | | EcommerceSite
                        0
                      • RevanaDigitalSEO

                        Canonical Tag when using Ajax and PhantomJS

                        Hello, We have a site that is built using an AJAX application. We include the meta fragment tag  in order to get a rendered page from PhantomJS. The URL that is rendered to google from PhantomJS then is www.oursite.com/?escaped_fragment= In the SERP google of course doesnt include the hashtag in the URL. So my question, with this setup, do i still need a canonical tag and if i do, would the canonical tag be the escaped fragment URL or the regular URL? Much Appreciated!

                        Technical SEO | | RevanaDigitalSEO
                        0
                      • ztalk112

                        301 redirect: canonical or non canonical?

                        Hi, Newbie alert! I need to set up 301 redirects for changed URLs on a database driven site that is to be redeveloped shortly. The current site uses canonical header tags. The new site will also use canonical tags. Should the 301 redirects map the canonical URL on the old site to the corresponding canonical for the new design . . . or should they map the non canonical database URLs old and new? Given that the purpose of canonicals is to indicate our preferred URL, then my guess is that's what I should use. However, how can I be sure that Google (for example) has indexed the canonical in every case? Thx in anticipation.

                        Technical SEO | | ztalk112
                        0
                      • DonnaDuncan

                        Exclude status codes in Screaming Frog

                        I have a very large ecommerce site I'm trying to spider using screaming frog. Problem is I keep hanging even though I have turned off the high memory safeguard under configuration. The site has approximately 190,000 pages according to the results of a Google site: command. The site architecture is almost completely flat. Limiting the search by depth is a possiblity, but it will take quite a bit of manual labor as there are literally hundreds of directories one level below the root. There are many, many duplicate pages. I've been able to exclude some of them from being crawled using the exclude configuration parameters. There are thousands of redirects. I haven't been able to exclude those from the spider b/c they don't have a distinguishing character string in their URLs. Does anyone know how to exclude files using status codes? I know that would help. If it helps, the site is kodylighting.com. Thanks in advance for any guidance you can provide.

                        Technical SEO | | DonnaDuncan
                        0
                      • AlexThomas

                        Reliable Proxies

                        Can anyone recommend a reliable proxy service (paid or otherwise) to tunnel scraping requests through? I've been using free proxes which are sometimes a bit slow/ timeout or just refuse connections.

                        Technical SEO | | AlexThomas
                        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