• BBgmoro

        See all notifications

        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.

          Turn SEO data into actionable content briefs

          Turn SEO data into actionable content briefs

          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.

          Let your business shine with Listings AI

          Let your business shine with Listings AI

          Get found
        • 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

          Access 20 years of data with flexible pricing
          Moz API

          Access 20 years of data with flexible pricing

          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
        2446
        Loading More Posts
        • Watching

          Notify me of new replies.
          Show question in unread.

        • Not Watching

          Do not notify me of new replies.
          Show question in unread if category is not ignored.

        • Ignoring

          Do not notify me of new replies.
          Do not show question in unread.

        • Oldest to Newest
        • Newest to Oldest
        • Most Votes
        Reply
        • Reply as question
        Locked
        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

                          • Eric_S

                            Duplicate, submitted URL not selected as canonical

                            Hi all, A number of our pages have dropped out of search rankings. It seems they are being marked as "Duplicate, submitted URL not selected as canonical" However, the page Google is choosing as the canonical is totally different - different headings, titles, metadata, content on the page. We are completely mystified as to why this is happening. If anyone can shed any light, it would be hugely appreciated! Example URL is this one:
                            https://www.vouchedfor.co.uk/IFA-financial-advisor-mortgage/london Which Google seems to think is a duplicate of this: https://www.vouchedfor.co.uk/solicitor/london

                            Technical SEO | | Eric_S
                            0
                          • GhillC

                            Trailing slash URLs and canonical links

                            Hi, I've seen a fair amount of topics speaking about the difference between domain names ending with or without trailing slashes, the impact on crawlers and how it behaves with canonical links.
                            However, it sticks to domain names only.
                            What about subfolders and pages then? How does it behaves with those? Say I've a site structured like this:
                            https://www.domain.com
                            https://www.domain.com/page1 And for each of my pages, I've an automatic canonical link ending with a slash.
                            Eg. rel="canonical" href="https://www.domain.com/page1/" /> for the above page. SEM Rush flags this as a canonical error. But is it exactly?
                            Are all my canonical links wrong because of that slash? And as subsidiary question, both domain.com/page1 and domain.com/page1/ are accessible. Is it this a mistake or it doesn't make any difference (I've read that those are considered different pages)? Thanks!
                            G

                            Technical SEO | | GhillC
                            0
                          • SoulSurfer8

                            How long does it take for canonical tags to work

                            How long on average does it take for a canonical tag to work? Understand that canonicals are just a suggestion, but after adding a canonical tag and submitting the page via Google fetch, assuming Google follows the canonical, would you expect it to work after a day or two or does it take longer? We added canonicals to old PPC landing pages that are ranking organically, though our new landing pages (which we want to rank organically) are not identical and have a bit more content/features. They are similar though. Canonicals were added to the old pages (pointing to new pages) and requested indexing via search console. Old pages are still ranking and new pages not so much. FYI we are unable to 301 old PPC pages due to other non negotiable reasons unfortunately. Thanks.

                            Technical SEO | | SoulSurfer8
                            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
                          • sidstar

                            The Mysterious Case of Pagination, Canonical Tags

                            Hey guys, My head explodes when I think of this problem. So I will leave it to you guys to find a solution... My root domain (xxx.com) runs on WordPress platform. I use Yoast SEO plugin. The next page of root domain -- page/2/ -- has been canonicalized to the same page -- page/2/ points to page/2/ for example. The page/2/ and remaining pages also have this rel tags: I have also added "noindex,follow" to page/2/ and further -- Yoast does this automatically. Note: Yoast plugin also adds canonical to page/2/...page/3/ automatically. Same is the case with category pages and tag pages. Oh, and the author pages too -- they all have self-canonicalization, rel prev & rel next tags, and have been "noindex, followed." Problem: Am I doing this the way it should be done? I asked a Google Webmaster employee on rel next and prev tags, and this is what she said: "We do not recommend noindexing later pages, nor rel="canonical"izing everything to the first page." (My bad, last year I was canonicalizing pages to first page). One of the popular blog, a competitor, uses none of these tags. Yet they rank higher. Others following this format have been hit with every kind of Google algorithm I could think of. I want to leave it to Google to decide what's better, but then again, Yoast SEO plugin rules my blog -- okay, let's say I am a bad coder. Any help, suggestions, and thoughts are highly appreciated. 🙂 Update 1: Paginated pages -- including category pages and tag pages -- have unique snippets; no full-length posts. Thought I'd make that clear.

                            Technical SEO | | sidstar
                            0
                          • mistat2000

                            500 Server Error on RSS Feed

                            Hi there, I am getting multiple 500 errors on my RSS feed. Here is the error: <dt>Title</dt> <dd>500 : Error</dd> <dt>Meta Description</dt> <dd>Traceback (most recent call last): File "build/bdist.linux-x86_64/egg/downpour/init.py", line 391, in _error failure.raiseException() File "/usr/local/lib/python2.7/site-packages/twisted/python/failure.py", line 370, in raiseException raise self.type, self.value, self.tb Error: 500 Internal Server Error</dd> <dt>Meta Robots</dt> <dd>Not present/empty</dd> <dt>Meta Refresh</dt> <dd>Not present/empty</dd> Any ideas as to why this is happening, they are valid feeds?

                            Technical SEO | | mistat2000
                            0
                          • ShopChameleon

                            404 Errors After Site Migration

                            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.

                            Technical SEO | | ShopChameleon
                            0
                          • robertdempsey

                            Duplicate canonical URLs in WordPress

                            Hi everyone, I'm driving myself insane trying to figure this one out and am hoping someone has more technical chops than I do. Here's the situation... I'm getting duplicate canonical tags on my pages and posts, one is inside of the WordPress SEO (plugin) commented section, and the other is elsewhere in the header. I am running the latest version of WordPress 3.1.3 and the Genesis framework. After doing some testing and adding the following filters to my functions.php: <code>remove_action('wp_head', 'genesis_canonical'); remove_action('wp_head', 'rel_canonical');</code> ... what I get is this: With the plugin active + NO "remove action" - duplicate canonical tags
                            With the plugin disabled + NO "remove action" - a single canonical tag
                            With the plugin disabled + A "remove action" - no canonical tag I have tried using only one of these remove_actions at a time, and then combining them both. Regardless, as long as I have the plugin active I get duplicate canonical tags. Is this a bug in the plugin, perhaps somehow enabling the canonical functionality of WordPress? Thanks for your help everyone. Robert Dempsey

                            Technical SEO | | robertdempsey
                            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 - 2026 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.