• 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. Intermediate & Advanced SEO
        4. Large robots.txt file

        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.

        Large robots.txt file

        Intermediate & Advanced SEO
        1
        2
        1065
        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.
        • ThomasHarvey
          ThomasHarvey last edited by

          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?

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

            Answered my own questions:

            https://developers.google.com/webmasters/control-crawl-index/docs/robots_txt?csw=1#file-format

            "A maximum file size may be enforced per crawler. Content which is after the maximum file size may be ignored. Google currently enforces a size limit of 500kb."

            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

            • Davit1985

              Large Competitor closed, how to capitalize in search. Any ideas?

              Hey Mozzers, One of our biggest competitors closed down on January 1st, 2020 in several US cities. They did stay open in some areas just FYI. The competitor's website is www.execucar.com. This is a very large company that has a presence in almost all US major airports.  It's a private car service just like Uber but for wealthy individuals. For example. when you search " lax car service" they are  #3 on Google or "car service to lax" they're #2 still. What can we do to get more of their traffic and actual business?  Has anyone done something like this before or knows quick and easy tactics to get their clients?  We have a local landing page: https://dcacar.com/lax-car-service that ranks 9 through 11 for those same keywords. Thanks for your thoughts and time. Davit

              Intermediate & Advanced SEO | | Davit1985
              0
            • Fubra

              Regex in Disavow Files?

              Hi, Will Regex expressions work in a disavow file? If i include website.com/* will that work or would you recommend just website.com? Thanks.

              Intermediate & Advanced SEO | | Fubra
              0
            • Daaveey

              Default Wordpress 301 Redirects of JS and CSS files. Bad for SEO & How to Fix?

              Hi there: We are developers with some digital marketing expertise, but a current issue has us perplexed. An outside SEO firm has asked us to clean up a large number of 301 redirects. Most of these are 'default' Wordpress behavior that relate to calling the latest version of a JS or CSS file. For instance, a JS file is called with this: https://websitexyz.com/wp-includes/js/wp-embed.min.js?ver=4.9.1 but ultimately redirects to this: https://websitexyz.com/wp-includes/js/wp-embed.min.js. We are being asked to prevent the redirect from happening by, presumably, calling the ultimate file to begin with. The issue is that, as far as we know, there's no easy way to alter WP behavior to call the ultimate file to begin with. Does anyone have any thoughts on this? Thanks.

              Intermediate & Advanced SEO | | Daaveey
              0
            • fablau

              Is Google indexing Mp3 audio and MIDI music files? Can that cause any duplicate problems?

              Hello, I own virtualsheetmusic.com website and we have several thousands of media files (Mp3 and MIDI files) that potentially Google can index. If that's the case, I am wondering if that could cause any "duplicate" issues of some sort since many of such media files have  exact file names or same meta information inside. Any thoughts about this issue are very welcome! Thank you in advance to anyone.

              Intermediate & Advanced SEO | | fablau
              0
            • danng

              XML Sitemap Index Percentage (Large Sites)

              Hi all I'm wanting to find out from those who have experience dealing with large sites (10s/100s of millions of pages). What's a typical (or highest) percentage of indexed pages vs. submitted pages you've seen? This information can be found in webmaster tools where Google shows you the pages submitted & indexed for each of your sitemap. I'm trying to figure out whether, The average index % out there There is a ceiling (i.e. will never reach 100%) It's possible to improve the indexing percentage further Just to give you some background, sitemap index files (according to schema.org) have been implemented to improve crawl efficiency and I'm wanting to find out other ways to improve this further. I've been thinking about looking at the URL parameters to exclude as there are hundreds (e-commerce site) to help Google improve crawl efficiency and utilise the daily crawl quote more effectively to discover pages that have not been discovered yet. However, I'm not sure yet whether this is the best path to take or I'm just flogging a dead horse if there is such a ceiling or if I'm already at the average ballpark for large sites. Any suggestions/insights would be appreciated. Thanks.

              Intermediate & Advanced SEO | | danng
              0
            • nicole.healthline

              Soft 404's from pages blocked by robots.txt -- cause for concern?

              We're seeing soft 404 errors appear in our google webmaster tools section on pages that are blocked by robots.txt (our search result pages). Should we be concerned? Is there anything we can do about this?

              Intermediate & Advanced SEO | | nicole.healthline
              4
            • HD_Leona

              Blocking Pages Via Robots, Can Images On Those Pages Be Included In Image Search

              Hi! I have pages within my forum where visitors can upload photos.  When they upload photos they provide a simple statement about the photo but no real information about the image,definitely not enough for the page to be deemed worthy of being indexed.  The industry however is one that really leans on images and having the images in Google Image search is important to us. The url structure is like such:  domain.com/community/photos/~username~/picture111111.aspx I wish to block the whole folder from Googlebot to prevent these low quality pages from being added to Google's main SERP results.  This would be something like this: User-agent: googlebot Disallow: /community/photos/ Can  I disallow Googlebot specifically rather than just using User-agent:  * which would then allow googlebot-image to pick up the photos?  I plan on configuring a way to add meaningful alt attributes and image names to assist in visibility, but the actual act of blocking the pages and getting the images picked up... Is this possible? Thanks! Leona

              Intermediate & Advanced SEO | | HD_Leona
              0
            • nicole.healthline

              Robots.txt & url removal vs. noindex, follow?

              When de-indexing pages from google, what are the pros & cons of each of the below two options: robots.txt & requesting url removal from google webmasters Use the noindex, follow meta tag on all doctor profile pages Keep the URLs in the Sitemap file so that Google will recrawl them and find the noindex meta tag make sure that they're not disallowed by the robots.txt file

              Intermediate & Advanced SEO | | nicole.healthline
              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.