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?
-
Hi,
If my website uses CDN does thousands of 301 redirect can harm the website performance?
Thanks
Roy
-
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
-
Hi Roy let me know if the answer were useful for you
-
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."
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
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.
Related Questions
-
Using a Reverse Proxy and 301 redirect to appear Sub Domain as Sub Directory - what are the SEO Risks?
We’re in process to move WordPress blog URLs from subdomains to sub-directory. We aren’t moving blog physically, but using reverse proxy and 301 redirection to do this. Blog subdomain URL is https://blog.example.com/ and destination sub-directory URL is https://www.example.com/blog/ Our main website is e-commerce marketplace which is YMYL site. This is on Windows server. Due to technical reasons, we can’t physically move our WordPress blog to the main website. Following is our Technical Setup Setup a reverse proxy at https://www.example.com/blog/ pointing to https://blog.example.com/ Use a 301 redirection from https://blog.example.com/ to https://www.example.com/blog/ with an exception if a traffic is coming from main WWW domain then it won’t redirect. Thus, we can eliminate infinite loop. Change all absolute URLs to relative URLs on blog Change the sitemap URL from https://blog.example.com/sitemap.xml to https://www.example.com/blog/sitemap.xml and update all URLs mentioned within the sitemap. SEO Risk Evaluation We have individual GA Tracking ID and individual Google Search Console Properties for main website and blog. We will not merge them. Keep them separate as they are. Keeping this in mind, I am evaluating SEO Risks factors Right now when we receive traffic from main website to blog (or vice versa) then it is considered as referral traffic and new cookies are set for Google Analytics. What’s going to happen when its on the same domain? Which type of settings change should I do in Blog’s Google Search Console? (A). Do I need to request “Change of Address” in the Blog’s search console property? (B). Should I re-submit the sitemap? Do I need to re-submit the blog sitemap from the https://www.example.com/ Google Search Console Property? Main website is e-commerce marketplace which is YMYL website, and blog is all about content. So does that impact SEO? Will this dilute SEO link juice or impact on the main website ranking because following are the key SEO Metrices. (A). Main website’s Avg Session Duration is about 10 minutes and bounce rate is around 30% (B). Blog’s Avg Session Duration is 33 seconds and bounce rate is over 92%
Intermediate & Advanced SEO | | joshibhargav_200 -
Do bulk 301 redirects hurt seo value?
We are working with a content based startup that needs to 301 redirect a lot of its pages to other websites. Will give you an example to help you understand. If we assume this is the startups domain and URL structure www.ourcompany.com/brand1/article What they want to do is do a 301 redirect of www.ourcompany.com/brand1/ to www.brand1.com I have never seen 301 as a problem to SEO or link juice. But in this case where all the major URLs are getting redirected to other sites i was wondering if it would have a negative effect. Right now they have just 20-30 brands but they are planning to hit a couple of hundreds this year.
Intermediate & Advanced SEO | | aaronfernandez0 -
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 | | dsbud0 -
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 | | HashtagHustler0 -
301 Redirect of subdomain?
Fellow Mozzers, I'm having a hard time wrapping my brain around a redirect issue and thought it was worth posing the question to the Moz community. I did a search first but couldn't find the exact answer I was looking for. How does a 301 redirect work when you redirect a sub domain example.homepage.com to www.homepage.com but you keep the sub directories of example.homepage.com/page-1 active and are trying to rank them? I'm dealing with a current project where this is happening and this doesn't make sense to me, to redirect the subdomain if you're also trying to rank/create search traffic for pages, sub directories on example.homepage.com. This also get's into the debate of if a sub domain site is viewed as it's own website and therefore has to rank itself. If this is true, it seems like we're kind of killing the authority of the site by redirecting it. Additionally, www.homepage.com has a much stronger link profile than example.homepage.com I hope this makes sense. Any thoughts are appreciated. Thanks for your time.
Intermediate & Advanced SEO | | SMG-Texas0 -
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 | | LosNomads0 -
How to set up 301 redirect for URL with question mark
I have encountered some issue with 301 redirect and htaccess file. I need to redirect the following url: http://www.domain.com/?specifications=colours/page/3 to: http://www.domain.com/colours The 301 redirect command I wrote in htaccess file is as follow: Redirect 301 /?specifications=colours/page/3 http://www.domain.com/colours And it doesn't work at the moment. What is the correct way to set up 301 redirect here? Your help will be sincerely appreciated!
Intermediate & Advanced SEO | | robotseo0 -
Is it ok to use both 301 redirect and rel="canonical' at the same time?
Hi everyone, I'm sorry if this has been asked before. I just wasn't able to find a response in previous questions. To fix the problems in our website regarding duplication I have the possibility to set up 301's and, at the same time, modify our CMS so that it automatically sets a rel="canonical" tag for every page that is generated. Would it be a problem to have both methods set up? Is it a problem to have a on a page that is redirecting to another one? Is it advisable to have a rel="canonical" tag on every single page? Thanks for reading!
Intermediate & Advanced SEO | | SDLOnlineChannel0