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.

      Let your reputation grow with Reviews AI
      Moz Local

      Let your reputation grow with Reviews AI

      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

      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. Technical SEO
    4. Does a CDN affect search rankings?

    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.

    Does a CDN affect search rankings?

    Technical SEO
    5
    7
    10322
    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.
    • Hyrule
      Hyrule last edited by

      I feel kind of stupid asking this, but if i use one it would speed things up quite a bit. It is for a ecommerce website, any guidance on this would be awesome!

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

        Google officially said the site speed is a SEO factor which, when implemented, will affect 1% of SERP results. This gives some idea of the scope of it's relevancy. (not saying 1% is either high or low, this is all very subjective)

        Having said that, beyond speed improvement, CDN provides other SEO related benefits.

        I've actually just published a 2-part Blog post that investigates SEO & CDN related myths and talks about CDN and SEO benefits, I hope you`ll find it useful. it should answer all questions:

        Part 1: SEO & CDN Myths
        Part 2: SEO & CDN benefits

        1 Reply Last reply Reply Quote 2
        • Highland
          Highland @Hyrule last edited by

          I use a CDN and have never seen any impact on my SEO. As long as your HTML is served off your domain you're fine.

          If you're using AWS Cloudfront you can set up a CNAME so that your content comes from, say, images.mydomain.com instead of xyz.cdn.com. Helps obscure it from visitors and looks a bit neater.

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

            Using a properly configured CDN will not have any negative effects on SEO. It can have positive effects on your rankings by offering faster page loads.

            With Google's current system, you would not see a SEO benefit per se. If your current site is deemed slow by Google, you could have your current speed penalty lifted.

            Moving to a CDN will surely provide a better user experience. Google is constantly adjusting it's algorithms in chase of the best user experience, so this is a chance for you to get ahead of the game. It is reasonable to think in the future Google may consider site speed as a ranking factor.

            Two other suggestions regarding setting up a CDN:

            • you need to be very conscious of your cache settings. You could make a change on your site and users will not see the change if you do not ensure that change is propagated throughout your CDN

            • try to include all files which would benefit from a CDN. I have seen some sites just add their videos and image files to the CDN. Custom Javascript, CSS files and so forth can all benefit from CDN. PageSpeed and YSlow are two great tools for optimizing page loading times.

            1 Reply Last reply Reply Quote 1
            • brycebertola
              brycebertola @Hyrule last edited by

              As far as I know, the urls of your additional resources such as images, css, and scripts shouldn't affect your SEO either way.

              1 Reply Last reply Reply Quote 0
              • Hyrule
                Hyrule @brycebertola last edited by

                But, does the use of a Content Delivery Network (cdn) itself affect seo? For example my pics / code will be hosted differently. Just kind of confusing to me since I'm used to URL structure being: mydomain.com/images/pic.jpg instead of xyz.cdn.com/2523/myname/pic.jpg. Is this even something to be concerned about?

                brycebertola Highland 2 Replies Last reply Reply Quote 0
                • brycebertola
                  brycebertola last edited by

                  Site speed is only relevant when your site is extremely slow. Google doesn't penalize you unless your page load time is excessively long. You won't get a boost in rankings by speeding up your site.

                  With that in mind, Site load times do affect your user experience, so you may notice a lower bounce rate, more pages per visit, and possibly a higher conversion rate.

                  Hyrule 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

                  • vaskrupp

                    Website ranking declined after connecting to CDN

                    Hi! We are trying to rank https://windowmart.ca for various local search terms. Our head office is in Edmonton where we try to rank https://windowmart.ca/edmonton-windows-doors/ for such terms as "windows Edmonton", "replacement windows Edmonton", "windows and doors Edmonton" as well as others. The website was the leader in its niche for around 2 years. Then we've got some server related issues, moved to a new server and connected CDN Nitropack that really improved our google speed test results. Recently we noticed that our rankings started to drop. Do you know if Nitropack can negatively effect local SEO rankings? Thank you!

                    Technical SEO | | vaskrupp
                    0
                  • samgold

                    Can an external firewall affect rankings?

                    For security reasons we are now routing traffic through an external firewall cum CDN. Our server and domain IPs remain the same, but any request is routed through an external IP, which then forwards the traffic. Would our rankings be affected because of IP changes? Thanks Sam

                    Technical SEO | | samgold
                    0
                  • TNZ

                    Google not Indexing images on CDN.

                    My URL is: https://bit.ly/2hWAApQ We have set up a CDN on our own domain: https://bit.ly/2KspW3C We have a main xml sitemap: https://bit.ly/2rd2jEb and https://bit.ly/2JMu7GB is one the sub sitemaps with images listed within. The image sitemap uses the CDN URLs. We verified the CDN subdomain in GWT. The robots.txt does not restrict any of the photos: https://bit.ly/2FAWJjk. Yet, GWT still reports none of our images on the CDN are indexed. I ve followed all the steps and still none of the images are being indexed. My problem seems similar to this ticket https://bit.ly/2FzUnBl but however different because we don't have a separate image sitemap but instead have listed image urls within the sitemaps itself. Can anyone help please? I will promptly respond to any queries. Thanks
                    Deepinder

                    Technical SEO | | TNZ
                    0
                  • adamjack

                    How to remove Parameters from Google Search Console?

                    Hi All, Following are parameter configuration in search console - Parameters - fl
                    Does this parameter change page content seen by the user? - Yes, Changes, reorders, or narrows page content.
                    How does this parameter affect page content? - Narrow
                    Which URLs with this parameter should Googlebot crawl? - Let Googlebot decide (Default) Query - Actually it is filter parameter. I have already set canonical on filter page. Now I am doing tracking of filter pages via data layer and tag manager so in google analytic I am not able to see filter url's because of this parameter. So I want to delete this parameter. Can anyone please help me? Thanks!

                    Technical SEO | | adamjack
                    0
                  • Koki.Mourao

                    Image Search

                    Hello Community, I have been reading and researching about image search and trying to find patterns within the results but unfortunately I could not get to a conclusion on 2 matters. Hopefully this community would have the answers I am searching for. 1) Watermarked Images (To remove or not to remove watermark from photos) I see a lot of confusion on this subject and am pretty much confused myself. Although it might be true that watermarked photos do not cause a punishment, it sure does not seem to help. At least in my industry and on a bunch of different random queries I have made, watermarked images are hard to come by on Google's images results. Usually the first results do not have any watermarks. I have read online that Google takes into account user behavior and most users prefer images with no watermark. But again, it is something "I have read online" so I don't have any proof.  I would love to have further clarification and, if possible, a definite guide on how to improve my image results. 2)  Multiple nested folders (Folder depth) Due to speed concerns our tech guys are using 1 image per folder and created a convoluted folder structure where the photos are actually 9 levels deep. Most of our competition and many small Wordpress blogs outrank us on Google images and on ALL INSTANCES I have checked, their photos are 3, 4 or 5 levels deep. Never inside 9 nested folders.  
                    So... A) Should I consider removing the watermark - which is not that intrusive but is visible?
                    B) Should I try to simplify the folder structure for my photos? Thank you

                    Technical SEO | | Koki.Mourao
                    0
                  • rijwielcashencarry040

                    Remove sitemap, effect ranking?

                    We are considering to remove our sitemap because it doesn't display the right structure. Will it affect current rankings if we remove the sitemap en continuing without a sitemap? Thanks

                    Technical SEO | | rijwielcashencarry040
                    0
                  • FDFPres

                    Google ranking my site abroad, how to stop?

                    Hi Mozzers, I have a UK based ecommerce site, that sells only to the UK.  Over the last month Google has started ranking my site on foreign flavours of Google, so I keep getting traffic coming to my site from Europe, America and the far east that we could never sell to, and as a result bounce is going up and engagement is going down. They are definitely coming to the site from google searches that relate to my product type, but in regions I do not service. Is there a way to stop google doing this?  I have the target set to UK in WMT, but is there anything else I can do?  I worried about my UK ranking being damaged by an increasing overall bounce rate. Thanks

                    Technical SEO | | FDFPres
                    0
                  • BPIAnalytics

                    Does using parentheses affect the crawlers?

                    Quick question: if you using a parantheses around a keyword, do search bots still recognize the keyword?  Fox ex: Welcome to a website about the National Basketball Association (NBA). Will the bots recognize that I'm trying to optimize to NBA and not (NBA)?  Is this different for tags vs. actual body copy?

                    Technical SEO | | BPIAnalytics
                    2

                  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.