• ramc-7JcUnB

        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.

          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
        • 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. Subdomain Removal in Robots.txt with Conditional Logic??

        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.

        Subdomain Removal in Robots.txt with Conditional Logic??

        Technical SEO
        3
        3
        2481
        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.
        • ErnieB
          ErnieB last edited by

          I would like to see if there is a way to add conditional logic to the robots.txt file so that when we push from DEV to PRODUCTION and the robots.txt file is pushed, we don't have to remember to NOT push the robots.txt file OR edit it when it goes live.

          My specific situation is this:

          I have www.website.com, dev.website.com and new.website.com and somehow google has indexed the DEV.website.com and NEW.website.com and I'd like these to be removed from google's index as they are causing duplicate content.

          Should I:

          a) add 2 new GWT entries for DEV.website.com and NEW.website.com and VERIFY ownership - if I do this, then when the files are pushed to LIVE won't the files contain the VERIFY META CODE for the DEV version even though it's now LIVE? (hope that makes sense)

          b) write a robots.txt file that specifies "DISALLOW: DEV.website.com/" is that possible? I have only seen examples of DISALLOW with a "/" in the beginning...

          Hope this makes sense, can really use the help!  I'm on a Windows Server 2008 box running ColdFusion websites.

          1 Reply Last reply Reply Quote 0
          • KeriMorgret
            KeriMorgret last edited by

            Here's how I dealt with a similar situation in the past.

            Robots.txt on each of the dev subdomains and on the live domain. Dev subdomains robots.txt excluded the entire subdomain, and subdomains were verified in GWT and removed as needed.

            Made live subdomain robots.txt read-only so it didn't get overwritten. Should have made dev subdomains robots.txt read-only as well, since they sometimes got refreshed with the live content (there was a UGC database that would occasionally get copied to a dev subdomain, and we'd have robots.txt get copied over too and dev subdomain indexed).

            Set up a code monitor that checks the contents of all of the robots.txt daily and sends me an email if anything is changed.

            Not perfect, but I was at least able to catch changes soon after they happened, and prevented a few changes.

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

              you can't put logic in robots.txt and subdomains are seen as different sites, so you need to create separate robots.txt files for each subdomain and block them in their respective robots.txt files.

              You'll need to also add the Google verification code and verify them, then in GWMT you can request to have the subdomain removed from Googles index, that's the fastest way.

              1 Reply Last reply Reply Quote 0
              • 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

              • LivDetrick

                Role of Robots.txt and Search Console parameters settings

                Hi, wondering if anyone can point me to resources or explain the difference between these two. If a site has url parameters disallowed in Robots.txt is it redundant to edit settings in Search Console parameters to anything other than "Let Googlebot Decide"?

                Technical SEO | | LivDetrick
                0
              • kcb8178

                Is there a limit to how many URLs you can put in a robots.txt file?

                We have a site that has way too many urls caused by our crawlable faceted navigation.  We are trying to purge 90% of our urls from the indexes.  We put no index tags on the url combinations that we do no want indexed anymore, but it is taking google way too long to find the no index tags.  Meanwhile we are getting hit with excessive url warnings and have been it by Panda. Would it help speed the process of purging urls if we added the urls to the robots.txt file?  Could this cause any issues for us?  Could it have the opposite effect and block the crawler from finding the urls, but not purge them from the index? The list could be in excess of 100MM urls.

                Technical SEO | | kcb8178
                0
              • Jseddon92

                Should we remove category paths for better SEO?

                We're looking to build some serious content and capitalise on long-tail keyword traffic for our sub-category pages, example for targeted keyword "designer dining tables". Example of current link: www.website.com/designer-furniture/designer-dining-tables.html Would removing the category paths help? Example result - www.website.com/designer-dining-tables More user friendly URLs and better for SEO would you suggest? The only problem is, if we removed the paths would this have a hit on our traffic? Any advice would be much appreciated. We are using Magento platform.

                Technical SEO | | Jseddon92
                0
              • ahockley

                Google insists robots.txt is blocking... but it isn't.

                I recently launched a new website.  During development, I'd enabled the option in WordPress to prevent search engines from indexing the site. When the site went public (over 24 hours ago), I cleared that option. At that point, I added a specific robots.txt file that only disallowed a couple directories of files.  You can view the robots.txt at http://photogeardeals.com/robots.txt Google (via Webmaster tools) is insisting that my robots.txt file contains a "Disallow: /" on line 2 and that it's preventing Google from indexing the site and preventing me from submitting a sitemap.  These errors are showing both in the sitemap section of Webmaster tools as well as the Blocked URLs section. Bing's webmaster tools are  able to read the site and sitemap just fine. Any idea why Google insists I'm disallowing everything even after telling it to re-fetch?

                Technical SEO | | ahockley
                0
              • Mikkehl

                Robots.txt to disallow /index.php/ path

                Hi SEOmoz, I have a problem with my Joomla site (yeah - me too!). I get a large amount of /index.php/ urls despite using a program to handle these issues. The URLs cause indexation errors with google (404). Now, I fixed this issue once before, but the problem persist. So I thought, instead of wasting more time, couldnt I just disallow all paths containing /index.php/ ?. I don't use that extension, but would it cause me any problems from an SEO perspective? How do I disallow all index.php's? Is it a simple: Disallow: /index.php/

                Technical SEO | | Mikkehl
                0
              • Webmaster123

                I accidentally blocked Google with Robots.txt. What next?

                Last week I uploaded my site and forgot to remove the robots.txt file with this text: User-agent: * Disallow: / I dropped from page 11 on my main keywords to past page 50. I caught it 2-3 days later and have now fixed it. I re-imported my site map with Webmaster Tools and I also did a Fetch as Google through Webmaster Tools. I tweeted out my URL to hopefully get Google to crawl it faster too. Webmaster Tools no longer says that the site is experiencing outages, but when I look at my blocked URLs it still says 249 are blocked. That's actually gone up since I made the fix. In the Google search results, it still no longer has my page title and the description still says "A description for this result is not available because of this site's robots.txt – learn more." How will this affect me long-term? When will I recover my rankings? Is there anything else I can do? Thanks for your input! www.decalsforthewall.com

                Technical SEO | | Webmaster123
                0
              • Websensejim

                Why has Google removed meta descriptions from SERPS?

                One of my clients' sites has just been redesigned with lots of new URLs added. So the 301 redirections have been put in place and most of the new URLs have now been indexed. BUT Google is still showing all the old URLs in the SERPS and even worse it only displays the title tag. The meta description is not shown, no rich snippet, no text, nothing below the title. This is proving disastrous as visitors are not clicking on a result with no description. I have to assume its got something to do with the redirection, but why is it not showing the descriptions? I've checked the old URLs and he meta description is definitely still in the code, but Google is choosing not to show it. I've never seen this before so I'm struggling for an answer. I'd like to know why or how this is happening, and if it can be resolved. I realise that this may be resolved when Google stops showing all the old URLs but there's no telling how long that will take (can it be speeded up?)

                Technical SEO | | Websensejim
                0
              • anand2010

                How to remove a sub domain from Google Index!

                Hello, I have a website having many subdomains having same copy of content i think its harming my SEO for that site since abc and xyz sub domains do have same contents. Thus i require to know i have already deleted required subdomain DNS RECORDS now how to have those pages removed from Google index as  well ? The DNS Records no more exists for those subdomains already.

                Technical SEO | | anand2010
                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.