• BBgmoro

        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.

          Turn SEO data into actionable content briefs

          Turn SEO data into actionable content briefs

          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.

          Let your business shine with Listings AI

          Let your business shine with Listings AI

          Get found
        • 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. If my website uses CDN does thousands of 301 redirect can harm the website performance?

        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.

        If my website uses CDN does thousands of 301 redirect can harm the website performance?

        Intermediate & Advanced SEO
        2
        4
        2118
        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.
        • kadut
          kadut last edited by

          Hi,

          If my website uses CDN does thousands of 301 redirect can harm the website performance?

          Thanks

          Roy

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

            Hi Roman,

            I didn't understand you answer,

            Do you know if there is a difference  between thousands of 301 redirects that has been done on CDN   VS  thousands of  redirects that has been done in theserver, ( on a website that doesn't use CDN )

            Thanks

            Roy

            1 Reply Last reply Reply Quote 0
            • Roman-Delcarmen
              Roman-Delcarmen last edited by

              Hi Roy let me know if the answer were useful for you

              1 Reply Last reply Reply Quote 0
              • Roman-Delcarmen
                Roman-Delcarmen last edited by

                YOU DONT HAVE TO WORRY ABOUT IT

                If you do not use any redirects, you are serving your content significantly faster. Redirects are likely the one single most time waster in your code especially when you consider mobile networks. They dramatically affect your page speed in a noticeably bad way.

                Server-side redirects: Fast, cachable
                Common redirects are 301 and 302 redirects which use HTTP to explain that a page or resource has moved. A 301 redirect is permanent and a 302 redirect is temporary. These are both server-side redirects which means that the web server is using HTTP to direct the browser to the new location of the file. Web browser can handle these types of redirect much quicker than client-side redirects and can cache the correct location of the file.

                Client-side redirects: Slow, not cachable
                Redirects that use the http-equiv="refresh" attribute or javascript can introduce even longer waiting times and performance issues and should be not used if at all possible.

                One of the most used redirects on the web is 301 redirect site wide from the non-www to www version of a webpage. These types of redirects have been recommended for SEO reasons for years so many people have them.

                It is my recommendation that if you have this type of redirect, you keep it in as it helps Google understand your website better.

                Recommendations from Google

                Google suggests eliminating redirects which are not absolutely necessary. They advise redicing redirects by...

                • "Never link to a page that you know has a redirect on it. This happens when you have manually created a redirect, but never changed the text link in your HTML to point to the new resource location."
                • "Never require more than one redirect to get to any of your resources."
                1 Reply Last reply Reply Quote 1
                • 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

                • dsbud

                  301 redirect hops from non-https and www

                  It's best practice to minimize the amount of 301 redirect hops. Ideally only one redirect hop. It's also best practice to 301 redirect (or at least canonical) your non-https and/or your non-www (or www) to the canonical protocol/subdomain. The simplest (and possibly the most common) way to implement canonical protocol/subdomain redirects is through a load balancer or before your app processes the request. Both of which will just blanket 301 to the canonical domain/protocol regardless if the path exists or not In which case, you could have: Two hops. i.e. hop #1 http://example.com/foo to https://example.com/foo, hop #2 https://example.com/foo to https://example.com/bar 301 to a 404. Let's say https://example.com/dog never existed, but somebody for whatever reason linked to it (maybe a typo). If I request https://www.example.com/dog, the load balancer would 301 to a 404 page. Either scenario above should be fairly rare. However, you can't control how people link to you. Should I care about either above scenario? I could have my app attempt to check if the page exists before forwarding, but that code could be complicated.

                  Intermediate & Advanced SEO | | dsbud
                  0
                • GeezerG

                  How to handle potentially thousands (50k+) of 301 redirects following a major site replacement

                  We are looking for the very best way of handling potentially thousands (50k+) of 301 redirects following
                  a major site replacement and I mean total replacement. Things you should know
                  Existing domain has 17 years history with Google but rankings have suffered over the past year and yes we know why. (and the bitch is we paid a good sized SEO company for that ineffective and destructive work)
                  The URL structure of the new site is completely different and SEO friendly URL's rule. This means that there will be many thousands of historical URL's (mainly dynamic ones) that will attract 404 errors as they will not exist anymore. Most are product profile pages and the God Google has indexed them all. There are also many links to them out there.
                  The new site is fully SEO optimised and is passing all tests so far - however there is a way to go yet. So here are my thoughts on the possible ways of meeting our need,
                  1: Create 301 redirects for each an every page in the .htaccess file that would be one huge .htaccess file 50,000 lines plus - I am worried about effect on site speed.
                  2: Create 301 redirects for each and every unused folder, and wildcard the file names, this would be a single redirect for each file in each folder to a single redirect page
                  so the 404 issue is overcome but the user doesn't open the precise page they are after.
                  3: Write some code to create a hard copy 301 index.php file for each and every folder that is to be replaced.
                  4: Write code to create a hard copy 301 .php file for each and every page that is to be replaced.
                  5: We could just let the pages all die and list them with Google to advise of their death.
                  6: We could have the redirect managed by a database rather than .htaccess or single redirect files. Probably the most challenging thing will be to load the data in the first place, but I assume this could be done programatically - especially if the new URL can be inferred from the old. Many be I am missing another, simpler approach - please discuss

                  Intermediate & Advanced SEO | | GeezerG
                  0
                • Sandicliffe

                  301 Redirect Showing Up as Thousands Of Backlinks?

                  Hi Everyone, I'm currently doing quite a large back link audit on my company's website and there's one thing that's bugging me. Our website used to be split into two domains for separate areas of the business but since we have merged them together into one domain and have 301 redirected the old domain the the main one. But now, both GWT and Majestic are telling me that I've got 12,000 backlinks from that domain?  This domain didn't even have 12,000 pages when it was live and I only did specific 301 redirects (ie. for specific URL's and not an overall domain level 301 redirect) for about 50 of the URL's with all the rest being redirected to the homepage. Therefore I'm quite confused about why its showing up as so many backlinks - Old redirects I've done don't usually show as a backlink at all. UPDATE: I've got some more info on the specific back links. But now my question is - is having this many backlinks/redirects from a single domain going to be viewed negatively in Google's eyes? I'm currently doing a reconsideration request and would look to try and fix this issue if having so many backlinks from a single domain would be against Google's guidelines. Does anybody have any ideas? Probably somthing very obvious. Thanks! Sam

                  Intermediate & Advanced SEO | | Sandicliffe
                  0
                • HashtagHustler

                  Moving half my website to a new website: 301?

                  Good Morning! We currently have two websites which are driving all of our traffic. Our end goal is to combine the two and fold them into each other. Can I redirect the duplicate content from one domain to our main domain even though the URL's are different. Ill give an example below. (The domains are not the real domains). The CEO does not want to remove the other website entirely yet, but is willing to begin some sort of consolidation process. ABCaddiction.com is the main domain which covers everything from drug addiction to dual diagnosis treatment. ABCdualdiagnosis.com is our secondary website which covers everything as well. Can I redirect the entire drug addiction half of the website to ABCaddiction.com? With the eventual goal of moving everything together.

                  Intermediate & Advanced SEO | | HashtagHustler
                  0
                • LosNomads

                  301 redirection pointing to noindexed pages

                  I have rather an unusual situation where a recently launched affiliate site does not have any unique content as its all syndicated content. For that reason we are currently using the noindex,nofollow meta tags to keep the pages out of the search engines index until we create unique content for the pages. The problem is that due to a very tight timeframe with rebranding, we are looking at 301 redirecting (on a page to page basis) another high authority legacy domain to this new site before we have had a chance to add unique content to it and remove the noindex,nofollow tags. I would assume that any link authority normally passed through the 301 would be lost in this scenario but Im uncertain of what the broader impact might be. Has anyone dealt with a similar scenario? I know this scenario is not ideal and I would rather wait until the unique content is up and noindex tags are removed before launching the 301 redirect of the legacy domain but there are a number of competing priorities at play outside of SEO.

                  Intermediate & Advanced SEO | | LosNomads
                  0
                • BeytzNet

                  How to 301 redirect old wordpress category?

                  Hi All, In order to avoid duplication errors we've decided to redirect old categories (merge some categories).
                  In the past we have been very generous with the number of categories we assigned each post. One category needs to be redirected back to blog home (removed completely) while a couple others should be merged. Afterwords we will re-categorize some of the old posts. What is the proper way to do so?
                  We are not technical, Is there a plugin that can assist? Thanks

                  Intermediate & Advanced SEO | | BeytzNet
                  0
                • Travis-W

                  Multiple 301 Redirects for the Same Page

                  Hi Mozzers, What happens if I have a trail of 301 redirects for the same page? For example,
                  SiteA.com/10 --> SiteA.com/11 --> SiteA.com/13 --> SiteA.com/14 I know I lose a little bit of link juice by 301 redirecting.
                  The question is, would the link juice look like this for the example above? 100% --> 90% --> 81% -->72.9%
                  Or just 100% -----------------------------------------> 90% Does this link juice refer to juice from inbound links or links between internal pages on my site? Thanks!

                  Intermediate & Advanced SEO | | Travis-W
                  0
                • pbhatt

                  301 Redirects After Company Acquisition

                  We recently acquired a company, and now we are going to redirect all of the pages on their site to their respective pages on our site. Do we need to keep the original pages on their site active? For how long? Ideally, we would like to redirect everything and remove the old site entirely so we don't have to pay to keep hosting it. Is this possible? Thanks!

                  Intermediate & Advanced SEO | | pbhatt
                  1

                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 - 2026 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.