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
    • 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. Do you add 404 page into robot file or just add no index tag?

    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.

    Do you add 404 page into robot file or just add no index tag?

    Intermediate & Advanced SEO
    4
    5
    16045
    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.
    • Rubix
      Rubix last edited by

      Hi,

      got different opinion on this so i wanted to double check with your comment is.

      We've got /404.html page and I was wondering if you would add this page to robot text so it wouldn't be indexed or would you just add no index tag? What would be the best approach?

      Thanks!

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

        Hello Rubix,

        Saijo gave you some great advice, but I'm concerned about the fact that you have that page in the first place, and that it produces those URL parameters. It suggests to me that instead of showing a 404 error on the contact-office.aspx page (assuming that pages doesn't exist on that URL) you are redirecting the user who tries to access that URL to the /404.html page (e.g. /404.html?aspxerrorpath=/contact-office.aspx).

        Typically you want the 404 http status code to show on the URL the user is trying to unsuccessfully access. In this case instead of redirecting them to your "404 page URL" you would want to show your customized 404 message (and ensure it returns a 404 status code, use this tool) on www.yourdomain.com/contact-office.aspx.

        I hope this makes sense to you. If not, feel free to ask for clarification.

        1 Reply Last reply Reply Quote 1
        • Saijo.George
          Saijo.George last edited by

          404 are OK on your site just make sure you send the proper 404 header response for the 404 page ... Google does NOT index 404 pages ( as long as it sends the 404 header response ) , so you don't need to block them via robots.txt or meta robots.

          Infact GWT warns you about these if they are able to crawl the so called 404 pages that doesn't send a 404 header response , so I think its a good idea NOT to noindex them you will get the warning if something is wrong.

          Google will only index your 404 if you don't do that..they call it soft 404 : https://support.google.com/webmasters/answer/181708?hl=en

          worth reading : http://moz.com/learn/seo/http-status-codes

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

            Thanks Martijn,

            I actually want to know what would you do for the 404 page itself. It is something like:

            www.mainurl.com/404.html and for some reason this started to create some other links such as

            www.mainrul.com/404.html?aspxerrorpath=/contact-office.aspx

            Do you think I should add 404 page and subpages to Robot.txt ?

            Thanks!

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

              Hi Sida,

              I would add a noindex to the page and as you also will return the 404 status code this is enough data for Google to tell not to index the page itself.

              Hope this answers your question.

              1 Reply Last reply Reply Quote 0
              • 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

              • gozmoz

                Moving html site to wordpress and 301 redirect from index.htm to index.php or just www.example.com

                I found page duplicate content when using Moz crawl tool, see below. http://www.example.com
                Page Authority 40
                Linking Root Domains 31
                External Link Count 138
                Internal Link Count 18
                Status Code 200
                1 duplicate http://www.example.com/index.htm
                Page Authority 19
                Linking Root Domains 1
                External Link Count 0
                Internal Link Count 15
                Status Code 200
                1 duplicate I have recently transfered my old html site to wordpress.
                To keep the urls the same I am using a plugin which appends .htm at the end of each page. My old site home page was index.htm. I have created index.htm in wordpress as well but now there is a conflict of duplicate content. I am using latest post as my home page which is index.php Question 1.
                Should I also use redirect 301 im htaccess file to transfer index.htm page authority (19) to www.example.com If yes, do I use
                Redirect 301 /index.htm http://www.example.com/index.php
                or
                Redirect 301 /index.htm http://www.example.com Question 2
                Should I change my "Home" menu link to http://www.example.com instead of http://www.example.com/index.htm that would fix the duplicate content, as indx.htm does not exist anymore. Is there a better option? Thanks

                Intermediate & Advanced SEO | | gozmoz
                0
              • Malika1

                If Robots.txt have blocked an Image (Image URL) but the other page which can be indexed has this image, how is the image treated?

                Hi MOZers, This probably is a dumb question but I have a case where the robots.tags has an image url blocked but this image is used on a page (lets call it Page A) which can be indexed. If the image on Page A has an Alt tags, then how is this information digested by crawlers? A) would Google totally ignore the image and the ALT tags information? OR B) Google would consider the ALT tags information? I am asking this because all the images on the website are blocked by robots.txt at the moment but I would really like website crawlers to crawl the alt tags information. Chances are that I will ask the webmaster to allow indexing of images too but I would like to understand what's happening currently. Looking forward to all your responses 🙂 Malika

                Intermediate & Advanced SEO | | Malika1
                1
              • Michael_Rock

                Should I set up no index no follow on low quality pages?

                I know it is a good idea for duplicate pages, blog tags, etc. but I remember somewhere that you can help the overall link juice of a website by adding no index no follow or no index follow low quality content pages of your website. Is it still a good idea to do this or was it never a good idea to begin with? Michael

                Intermediate & Advanced SEO | | Michael_Rock
                0
              • rpaiva

                Adding a Canonical Tag to each page referencing itself?

                Hey Mozers! I've noticed that on www.Zappos.com they have a Canonical tag on each page referencing it self.  I have heard that this is a popular method but I dont see the point in canon tagging a page to its self. Any thoughts?

                Intermediate & Advanced SEO | | rpaiva
                0
              • iam-sold

                How can I prevent duplicate pages being indexed because of load balancer (hosting)?

                The site that I am optimising has a problem with duplicate pages being indexed as a result of the load balancer (which is required and set up by the hosting company). The load balancer passes the site through to 2 different URLs: www.domain.com www2.domain.com Some how, Google have indexed 2 of the same URLs (which I was obviously hoping they wouldn't) - the first on www and the second on www2. The hosting is a mirror image of each other (www and www2), meaning I can't upload a robots.txt to the root of www2.domain.com disallowing all. Also, I can't add a canonical script into the website header of www2.domain.com pointing the individual URLs through to www.domain.com etc. Any suggestions as to how I can resolve this issue would be greatly appreciated!

                Intermediate & Advanced SEO | | iam-sold
                0
              • HrThomsen

                Best practice for removing indexed internal search pages from Google?

                Hi Mozzers I know that it’s best practice to block Google from indexing internal search pages, but what’s best practice when “the damage is done”? I have a project where a substantial part of our visitors and income lands on an internal search page, because Google has indexed them (about 3 %). I would like to block Google from indexing the search pages via the meta noindex,follow tag because: Google Guidelines: “Use robots.txt to prevent crawling of search results pages or other auto-generated pages that don't add much value for users coming from search engines.” http://support.google.com/webmasters/bin/answer.py?hl=en&answer=35769 Bad user experience The search pages are (probably) stealing rankings from our real landing pages Webmaster Notification: “Googlebot found an extremely high number of URLs on your site” with links to our internal search results I want to use the meta tag to keep the link juice flowing. Do you recommend using the robots.txt instead? If yes, why? Should we just go dark on the internal search pages, or how shall we proceed with blocking them? I’m looking forward to your answer! Edit: Google have currently indexed several million of our internal search pages.

                Intermediate & Advanced SEO | | HrThomsen
                0
              • RichFinnSEO

                Meta Tag Force Page Refresh - Good or Bad?

                I had recently come across a meta tag that could cause a auto refresh on a users browser when implemented.  I have been using it for a redesign and was curious if there could be any negative effects for using it, here is the code: All input is appreciated. Ciao, Todd Richard

                Intermediate & Advanced SEO | | RichFinnSEO
                0
              • Peter264

                NOINDEX listing pages: Page 2, Page 3... etc?

                Would it be beneficial to NOINDEX category listing pages except for the first page.  For example on this site: http://flyawaysimulation.com/downloads/101/fsx-missions/ Has lots of pages such as Page 2, Page 3, Page 4... etc: http://www.google.com/search?q=site%3Aflyawaysimulation.com+fsx+missions Would there be any SEO benefit of NOINDEX on these pages?  Of course, FOLLOW is default, so links would still be followed and juice applied. Your thoughts and suggestions are much appreciated.

                Intermediate & Advanced SEO | | Peter264
                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.