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.

      NEW Keyword Suggestions by Topic
      Moz Pro

      NEW Keyword Suggestions by Topic

      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. Can an external firewall affect 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.

    Can an external firewall affect rankings?

    Technical SEO
    4
    5
    1291
    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.
    • samgold
      samgold last edited by

      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

      1 Reply Last reply Reply Quote 0
      • Caffeine_Marketing
        Caffeine_Marketing Subscriber @willcritchlow last edited by

        Hi, We have the same question and we noticed that ahrefs is blocked.  Would you mind looking at our site to see if you see any issues>. www.caffeinemarketing.co.uk  thanks

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

          Thank you for your answers. yes the sit speed has been affected just a hair - so that TTFB has gone down from 0.45 seconds to about 0.6 seconds - oscillates between A and B (mostly B) in one of the testing sites.

          1 Reply Last reply Reply Quote 0
          • effectdigital
            effectdigital @willcritchlow last edited by

            Site speed impact is where I see this becoming a real problem, unless the setup is done correctly

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

              Hi Sam. A correctly setup firewall or CDN should not have implications for SEO. If you can share the URL / domain then I can take a look at the specifics, but in principle, you should be fine.

              Things to watch out for:

              1. Site speed impacts - in theory a CDN should generally be good for site speed, but if you didn't select one primarily for this reason, it's something to check
              2. HTTPS - ensure that you keep this consistent through the change
              3. Avoid changing URLs in the process (if you have to, make sure you have redirects set up and treat it like a migration with associated risks)
              effectdigital Caffeine_Marketing 2 Replies 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

              • wfm-uk

                Lost ranking after domain switch

                I recently migrated from https://whitefusemedia.com to https://whitefuse.com. The website URL structure and content remained the same and I followed all the best practice guidance regarding checks on the new domain and appropriate 301 redirects. I have seen traffic drop by about 50% and the traffic that is still coming through is mainly coming through links still listed by Google under the old domain (https://whitefusemedia.com). Is this normal? Should I expect to see this bounce back, or is there anything I can do now to regain the rankings?

                Technical SEO | | wfm-uk
                0
              • Jason-Reid

                How does changing sitemaps affect SEO

                Hi all, I have a question regarding changing the size of my sitemaps. Currently I generate sitemaps in batches of 50k. A situation has come up where I need to change that size to 15k in order to be crawled by one of our licensed services. I haven't been able to find any documentation on whether or not changing the size of my sitemaps(but not the pages included in them) will affect my rankings negatively or my SEO efforts in general. If anyone has any insights or has experienced this with their site please let me know!

                Technical SEO | | Jason-Reid
                0
              • SO_UK

                Company name ranking

                Hi all, I hope somebody can share their thoughts on the below. A web designer launched my client's new website and I have been tasked with the SEO. I was approached with an immediate problem, www.clientswebsite.co.uk was ranking 9th for their company name after being indexed by Google. The search results above www.clientswebsite.co.uk were related to my client but not all, for example a direct competitor was also ranking. I have been working on the SEO for 2-3 weeks and I just managed to get to 3rd position for the company name, and then www.clientswebsite.co.uk disappeared from page 1! And now instead, an irelevant sub page is now ranking for the company name on page 2 (a contact page). I have checked and the home page is still indexed (did a site: check). The only problem software picks up is a redirect chain (http://homepage -> http://www.homepage  -> https://homepage) the web developers said it wouldn't impact rankings (when I asked them to edit the htaccess file to fix it) I've listed below the SEO tasks I completed whilst attempting to rank the company name: I set up analytics and webmaster tools, in which I set up preferred domain (www) Added a sitemap Edited meta data making sure company name was included I contacted the websites above www.clientswebsite.co.uk that were relevant and asked them to place a link linking to their new website, I was successful with a couple of these. I placed www.clientswebsite.co.uk on all of their social media profiles I reformatted headers on their home page, making sure the H1 included my client's company name I found 2 extra versions of my client's home page (not exact copies, but very similar content) that had been published, so I decided to 301 redirect these to the correct home page Activated SSL and forced to HTTPS I would really appreciate it if anyone could share their thoughts here, whether it be explanations or possible solutions Adam

                Technical SEO | | SO_UK
                0
              • bjalc2011

                Hosting images externally

                In these days of CDNs does it matter for SEO whether images (and PDFs etc.) are hosted off-site? Does it make a difference if images hosted on Flickr, photobucket etc. Thanks

                Technical SEO | | bjalc2011
                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
              • ReviveMedia

                What can I do to stop ranking for a keyword that has nothing to do with the companies website?

                A website that we maintain keeps ranking for the keyword 'homeless shelter'.  The company is UTILIS USA and they produce heavy duty shelters for military personnel.  They have nothing to do with homeless shelters but continue to receive traffic concerning the phrase.

                Technical SEO | | ReviveMedia
                0
              • EcomLkwd

                Huge ranking difference between google and bing

                I am trying to rank for the keyword "trash bags" I did  a lot of on-page optimization and link building. We started ranking #2 on bing and yahoo but google seems to be stubbornly fluctuating between being as high as 20 and as low as 45 and even dropped our rankings for a couple of weeks. Is there any need for concern if google is acting so different from bing/yahoo?

                Technical SEO | | EcomLkwd
                0
              • SteveBrumpton

                What can I do if my reconsideration request is rejected?

                Last week I received an unnatural link warning from Google.  Sad times. I followed the guidelines and reviewed all my inbound links for the last 3 months.  All 5000 of them!  Along with several genuine ones from trusted sites like BBC, Guardian and Telegraph there was a load of spam.  About 2800 of them were junk.  As we don't employ any SEO agency and don't buy links (we don't even buy adwords!) I know that all of this spam is generated by spam bots and site scrapers copying our content. As the bad links have not been created by us and there are 2800 of them I cannot hope to get them removed.  There are no 'contact us' pages on these Russian spam directories and Indian scraper sites.  And as for the 'adult book marking website' who have linked to us over 1000 times, well I couldn't even contact that site in company time if I wanted to!  As a result i did my manual review all day, made a list of 2800 bad links and disavowed them. I followed this up with a reconsideration request to tell Google what I'd done but a week later this has been rejected "We've reviewed your site and we still see links to your site that violate our quality guidelines."  As these links are beyond my control and I've tried to disavow them is there anything more to be done? Cheers Steve

                Technical SEO | | SteveBrumpton
                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
              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.