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. Robots.txt - Do I block Bots from crawling the non-www version if I use www.site.com ?

    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.

    Robots.txt - Do I block Bots from crawling the non-www version if I use www.site.com ?

    Intermediate & Advanced SEO
    2
    2
    1202
    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.
    • morg45454
      morg45454 last edited by

      my site uses is set up at http://www.site.com I have my site redirected from non- www to the www in htacess file. My question is... what should my robots.txt file look like for the non-www site? Do you block robots from crawling the site like this? Or do you leave it blank?

      User-agent: *

      Disallow: /

      Sitemap: http://www.morganlindsayphotography.com/sitemap.xml

      Sitemap: http://www.morganlindsayphotography.com/video-sitemap.xml

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

        Hi there

        If you configured this properly, I wouldn't worry about this at all.

        Check your internal links and sitemap to make sure that your URLs listed as a reflection of this www. version.

        Beyond that, you're all good, no need to block non www.

        Hope this helps! Good luck!

        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

        • neverenoughmusic.com

          My last site crawl shows over 700 404 errors all with void(0 added to the ends of my posts/pages.

          Hello, My last site crawl shows over 700 404 errors all with void(0 added to the ends of my posts/pages.  I have contacted my theme company but not sure what could have done this.  Any ideas? The original posts/pages are still correct and working it just looks like it did duplicates and added void(0 to the end of each post/page. Questions: There is no way to undo this correct? Do I have to do a redirect on each of these? Will this hurt my rankings and domain authority? Any suggestions would be appreciated. Thanks, Wade

          Intermediate & Advanced SEO | | neverenoughmusic.com
          0
        • Mat_C

          Robots.txt blocked internal resources Wordpress

          Hi all, We've recently migrated a Wordpress website from staging to live, but the robots.txt was deleted.  I've created the following new one: User-agent: *
          Allow: /
          Disallow: /wp-admin/
          Disallow: /wp-includes/
          Disallow: /wp-content/plugins/
          Disallow: /wp-content/cache/
          Disallow: /wp-content/themes/
          Allow: /wp-admin/admin-ajax.php However, in the site audit on SemRush,  I now get the mention that a lot of pages have issues with blocked internal resources in robots.txt file. These blocked internal resources are all cached and minified css elements: links, images and scripts. Does this mean that Google won't crawl some parts of these pages with blocked resources correctly and thus won't be able to follow these links and index the images? In other words, is this any cause for concern regarding SEO? Of course I can change the robots.txt again, but will urls like https://example.com/wp-content/cache/minify/df983.js end up in the index? Thanks for your thoughts!

          Intermediate & Advanced SEO | | Mat_C
          2
        • vetofunk

          Robots.txt & Disallow: /*? Question!

          Hi, I have a site where they have: Disallow: /*? Problem is we need the following indexed: ?utm_source=google_shopping What would the best solution be? I have read: User-agent: *
          Allow: ?utm_source=google_shopping
          Disallow: /*? Any ideas?

          Intermediate & Advanced SEO | | vetofunk
          0
        • timdavis

          Breaking up a site into multiple sites

          Hi, I am working on plan to divide up mid-number DA website into multiple sites. So the current site's content will be divided up among these new sites. We can't share anything going forward because each site will be independent. The current homepage will change to just link out to the new sites and have minimal content. I am thinking the websites will take a hit in rankings but I don't know how much and how long the drop will last.  I know if you redirect an entire domain to a new domain the impact is negligible but in this case I'm only redirecting parts of a site to a new domain. Say we rank #1 for "blue widget" on the current site. That page is going to be redirected to new site and new domain. How much of a drop can we expect? How hard will it be to rank for other new keywords say "purple widget" that we don't have now? How much link juice can i expect to pass from current website to new websites? Thank you in advance.

          Intermediate & Advanced SEO | | timdavis
          0
        • ThomasHarvey

          Large robots.txt file

          We're looking at potentially creating a robots.txt with 1450 lines in it. This will remove 100k+ pages from the crawl that are all old pages (I know, the ideal would be to delete/noindex but not viable unfortunately) Now the issue i'm thinking is that a large robots.txt will either stop the robots.txt from being followed or will slow our crawl rate down. Does anybody have any experience with a robots.txt of that size?

          Intermediate & Advanced SEO | | ThomasHarvey
          0
        • jmorehouse

          Disallow URLs ENDING with certain values in robots.txt?

          Is there any way to disallow URLs ending in a certain value? For example, if I have the following product page URL: http://website.com/category/product1, and I want to disallow /category/product1/review, /category/product2/review, etc. without disallowing the product pages themselves, is there any shortcut to do this, or must I disallow each gallery page individually?

          Intermediate & Advanced SEO | | jmorehouse
          0
        • YairSpolter

          Block in robots.txt instead of using canonical?

          When I use a canonical tag for pages that are variations of the same page, it basically means that I don't want Google to index this page. But at the same time, spiders will go ahead and crawl the page. Isn't this a waste of my crawl budget? Wouldn't it be better to just disallow the page in robots.txt and let Google focus on crawling the pages that I do want indexed? In other words, why should I ever use rel=canonical as opposed to simply disallowing in robots.txt?

          Intermediate & Advanced SEO | | YairSpolter
          0
        • workathomecareers

          Should comments and feeds be disallowed in robots.txt?

          Hi My robots file is currently set up as listed below. From an SEO point of view is it good to disallow feeds, rss and comments? I feel allowing comments would be a good thing because it's new content that may rank in the search engines as the comments left on my blog often refer to questions or companies folks are searching for more information on. And the comments are added regularly. What's your take? I'm also concerned about the /page being blocked. Not sure how that benefits my blog from an SEO point of view as well. Look forward to your feedback. Thanks. Eddy User-agent: Googlebot Crawl-delay: 10 Allow: /* User-agent: * Crawl-delay: 10 Disallow: /wp- Disallow: /feed/ Disallow: /trackback/ Disallow: /rss/ Disallow: /comments/feed/ Disallow: /page/ Disallow: /date/ Disallow: /comments/ # Allow Everything Allow: /*

          Intermediate & Advanced SEO | | workathomecareers
          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.