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.

      Enhance Keyword Discovery with Bulk Analysis
      Moz Pro

      Enhance Keyword Discovery with Bulk Analysis

      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

      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
    • 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. Intermediate & Advanced SEO
    4. Should I disallow all URL query strings/parameters in Robots.txt?

    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.

    Should I disallow all URL query strings/parameters in Robots.txt?

    Intermediate & Advanced SEO
    3
    5
    13064
    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.
    • jmorehouse
      jmorehouse last edited by

      Webmaster Tools correctly identifies the query strings/parameters used in my URLs, but still reports duplicate title tags and meta descriptions for the original URL and the versions with parameters. For example, Webmaster Tools would report duplicates for the following URLs, despite it correctly identifying the "cat_id" and "kw" parameters:

      /Mulligan-Practitioner-CD-ROM
      /Mulligan-Practitioner-CD-ROM?cat_id=87
      /Mulligan-Practitioner-CD-ROM?kw=CROM

      Additionally, theses pages have self-referential canonical tags, so I would think I'd be covered, but I recently read that another Mozzer saw a great improvement after disallowing all query/parameter URLs, despite Webmaster Tools not reporting any errors.

      As I see it, I have two options:

      1. Manually tell Google that these parameters have no effect on page content via the URL Parameters section in Webmaster Tools (in case Google is unable to automatically detect this, and I am being penalized as a result).
      2. Add "Disallow: *?" to hide all query/parameter URLs from Google. My concern here is that most backlinks include the parameters, and in some cases these parameter URLs outrank the original.

      Any thoughts?

      1 Reply Last reply Reply Quote 0
      • OlegKorneitchouk
        OlegKorneitchouk @jmorehouse last edited by

        Correct. They won't be indexed but are still followed.

        1 Reply Last reply Reply Quote 2
        • jmorehouse
          jmorehouse @OlegKorneitchouk last edited by

          The statement was in a response to a question I asked earlier.

          "I was having an issue like this where moz was showing a lot more duplicate content than webmaster tools was, actually webmaster tools showed none, but I was being penalized. I realized this when I added an exclusion to robots.txt to exclude any query strings on my site. After I did this I saw my rankings shoot through the roof."

          Thanks for the info. I did edit the settings in the URL parameters section to tell Google that these parameters do not change the page content, so it should now index only one representative URL. My only concern was that the kw (keyword) parameter does change page content for search result pages, but I just read that Matt Cutts encourages disallowing those pages anyway.

          Just to verify, disallowing those pages with parameters won't affect the "link juice" passed from external links?

          OlegKorneitchouk 1 Reply Last reply Reply Quote 1
          • PatrickDelehanty
            PatrickDelehanty last edited by

            Hi there

            I recently answered a question in a similar question in the Q+A that references resources that can help you help Google understand these parameters and categorize them. You can read that here.

            That being said, blocking these parameters in your robots.txt will not affect your rankings, especially if those parameter or query strings are properly canonicalized to the proper product page.

            That being said, I would make sure you understand the resources above and the options, as you understand your users and website better than anyone - test on a few pages to see what happens and go from there.

            Hope this helps! Good luck!

            1 Reply Last reply Reply Quote 2
            • OlegKorneitchouk
              OlegKorneitchouk last edited by

              "I recently read that another Mozzer saw a great improvement after disallowing all query/parameter URLs" - do you have a link for this?

              Canonicals should be enough but Google does mess up and the more clues you can give them, the better.

              You can also manually tell Google parameter meanings (if you check out your parameter page now in search console, you should see all of the parameters they've detected for you - you can just change their meaning).

              I don't see any harm in disallowing parameters via robots.txt. They will still be crawled and internal links followed, just not indexed in serps.

              jmorehouse 1 Reply Last reply Reply Quote 2
              • 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

              • ds9.tech

                Ogranization Schema/Microformat for a content/brand website | Travel

                Hi, One of our clients have a website specific to a place, for eg. California Tourism in which they publish local information related to tourism, blogs & other useful content. I want to understand how useful is to publish Organization Schema on such website mentioning the actual Organization, which in this case is a Travel Agency? Or any other schema would fit in for such websites?

                Intermediate & Advanced SEO | | ds9.tech
                0
              • Taiger

                Redirect wordpress from /%post_id%/%postname%/ to /blog/%postname%/

                Hi what is the code to redirect wordpress blog from site.com/%post_id%/%postname%/   to site.com/blog/%postname%/ We are moving the site to a new server and new url structure. Thanks in advance

                Intermediate & Advanced SEO | | Taiger
                0
              • ThomasHarvey

                What do you add to your robots.txt on your ecommerce sites?

                We're looking at expanding our robots.txt, we currently don't have the ability to noindex/nofollow. We're thinking about adding the following: Checkout Basket Then possibly: Price Theme Sortby other misc filters. What do you include?

                Intermediate & Advanced SEO | | ThomasHarvey
                0
              • Solid_Gold

                Why is rel="canonical" pointing at a URL with parameters bad?

                Context Our website has a large number of crawl issues stemming from duplicate page content (source: Moz). According to an SEO firm which recently audited our website, some amount of these crawl issues are due to URL parameter usage. They have recommended that we "make sure every page has a Rel Canonical tag that points to the non-parameter version of that URL…parameters should never appear in Canonical tags." Here's an example URL where we have parameters in our canonical tag... http://www.chasing-fireflies.com/costumes-dress-up/womens-costumes/ rel="canonical" href="http://www.chasing-fireflies.com/costumes-dress-up/womens-costumes/?pageSize=0&pageSizeBottom=0" /> Our website runs on IBM WebSphere v 7. Questions Why it is important that the rel canonical tag points to a non-parameter URL? What is the extent of the negative impact from having rel canonicals pointing to URLs including parameters? Any advice for correcting this? Thanks for any help!

                Intermediate & Advanced SEO | | Solid_Gold
                1
              • Ria_

                Partial Match or RegEx in Search Console's URL Parameters Tool?

                So I currently have approximately 1000 of these URLs indexed, when I only want roughly 100 of them. Let's say the URL is www.example.com/page.php?par1=ABC123=&par2=DEF456=&par3=GHI789= All the indexed URLs follow that same kinda format, but I only want to index the URLs that have a par1 of ABC (but that could be ABC123 or ABC456 or whatever). Using URL Parameters tool in Search Console, I can ask Googlebot to only crawl URLs with a specific value. But is there any way to get a partial match, using regex maybe? Am I wasting my time with Search Console, and should I just disallow any page.php without par1=ABC in robots.txt?

                Intermediate & Advanced SEO | | Ria_
                0
              • KS__

                How to rank for a location/country without having a physical address in that location/country

                How do I go about it if my physical address (office) is in Country A but I want to rank my website in Country B, C and D (without having an office or physical address in the countries B, C and D)? I am aware of people setting up virtual offices in other countries/cities and adding them to Google Places/Maps with toll free phone numbers, but I don't wish to do any of that. I know Google will catch up with this one day or the other and punish me hard for trying to play games with it. Is there a way rank a website in another country without actually having a physical location there? If yes, please guide me how to go about it.

                Intermediate & Advanced SEO | | KS__
                0
              • ShaqD

                Change url structure and keeping the social media likes/shares

                Hi guys, We're thinking of changing the url structure of the tutorials (we call it knowledgebase) section on our website. We want to make it shorter URL so it be closer to the TLD. So, for the convenience we'll call them old page (www.domain.com/profiles/profile_id/kb/article_title) and new page (www.domain.com/kb/article_title) What I'm looking to do is change the url structure but keep the likes/shares we got from facebook. I thought of two ways to do it and would love to hear what the community members thinks is better. 1. Use rel=canonical I thought we might do a rel=canonical to the new page and add a "noindex" tag to the old page. In that way, the users will still be able to reach the old page, but the juice will still link to the new page and the old pages will disappear from Google SERP and the new pages will start to appear. I understand it will be pretty long process. But that's the only way likes will stay 2. Play with the og:url property Do the 301 redirect to the new page, but changing the og:url property inside that page to the old page url. It's a bit more tricky but might work. What do you think? Which way is better, or maybe there is a better way I'm not familiar with yet? Thanks so much for your help! Shaqd

                Intermediate & Advanced SEO | | ShaqD
                0
              • salvyy

                Exact keyword URL or not?

                Hi all, I have a quick question about the proper use of permalinks. Let's say that I have a website about sports and I want to create an internal page dedicated to shoes. I know that the keyword "shoe" has 15.000 monthly visits, while the keyword "shoes" has 1.000 monthly visits. How do I have to name the internal page? http://www.example.com/shoe or http://www.example.com/shoes (with a final 's')? I would think that by naming the URL http://www.example.com/shoes, the search engine would consider that page for the keywords "shoe" and "shoes", but I am not sure about it. Should I create a URL that only focuses on one specific keyword ("shoe", in this example) or a URL that may encompass more than one keyword ("shoe" and "shoes")? I hope this is clear. Thank you for your time and help. All best, Sal

                Intermediate & Advanced SEO | | salvyy
                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.