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
-
Is there any benefit to changing 303 redirects to 301?
A year ago I moved my marketplace website from http to https. I implemented some design changes at the same time, and saw a huge drop in traffic that we have not recovered from. I've been searching for reasons for the organic traffic decline and have noticed that the redirects from http to https URLs are 303 redirects. There's little information available about 303 redirects but most articles say they don't pass link juice. Is it worth changing them to 301 redirects now? Are there risks in making such a change a year later, and is it likely to have any benefits for rankings?
Intermediate & Advanced SEO | | MAdeit0 -
Google Is Indexing my 301 Redirects to Other sites
Long story but now i have a few links from my site 301 redirecting to youtube videos or eCommerce stores. They carry a considerable amount of traffic that i benefit from so i can't take them down, and that traffic is people from other websites, so basically i have backlinks from places that i don't own, to my redirect urls (Ex. http://example.com/redirect) My problem is that google is indexing them and doesn't let them go, i have tried blocking that url from robots.txt but google is still indexing it uncrawled, i have also tried allowing google to crawl it and adding noindex from robots.txt, i have tried removing it from GWT but it pops back again after a few days. Any ideas? Thanks!
Intermediate & Advanced SEO | | cuarto7150 -
Several 301 Redirects to Same Page
Hi, I have 3 Pages we won't use anymore in our website. Let's call them url A, url B and url C. To keep their SEO strength on our domain, I've though about redirecting all of them to url D. For what I understand, when 301 redirecting, about 85-90% of the link SEO juice is passed. Then, if I redirect 3 URLs to the same page... does url D receive all the link SEO juices for URLs added up? (approximately)
Intermediate & Advanced SEO | | viatrading1
e.g. future url D juice = 100% current url D juice + 85% url A juice + 85% url B juice + 85% url C juice Is this the best practice, or is there a better way? Cheers,0 -
Changing URL structure of date-structured blog with 301 redirects
Howdy Moz, We've recently bought a new domain and we're looking to change over to it. We're also wanting to change our permalink structure. Right now, it's a WordPress site that uses the post date in the URL. As an example: http://blog.mydomain.com/2015/01/09/my-blog-post/ We'd like to use mod_rewrite to change this using regular expressions, to: http://newdomain.com/blog/my-blog-post/ Would this be an appropriate solution? RedirectMatch 301 /./././(.) /blog/$1
Intermediate & Advanced SEO | | IanOBrien0 -
Multiple 301 redirects for a HTTPS URL. Good or bad?
I'm working on an ecommerce website that has a few snags and issues with it's coding. They're using https, and when you access the website through domain.com, theres a 301 redirect to http://www.domain.com and then this, in turn, redirected to https://www.domain.com. Would this have a deterimental effect or is that considered the best way to do it. Have the website redirect to http and then all http access is redirected to the https URL? Thanks
Intermediate & Advanced SEO | | jasondexter0 -
Can an incorrect 301 redirect or .htaccess code cause 500 errors?
Google Webmaster Tools is showing the following message: _Googlebot couldn't access the contents of this URL because the server had an internal error when trying to process the request. These errors tend to be with the server itself, not with the request. _ Before I contact the person who manages the server and hosting (essentially asking if the error is on his end) is there a chance I could have created an issue with an incorrect 301 redirect or other code added to .htaccess incorrectly? Here is the 301 redirect code I am using in .htaccess: RewriteEngine On RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /([^/.]+/)*(index.html|default.asp)\ HTTP/ RewriteRule ^(([^/.]+/)*)(index|default) http://www.example.com/$1 [R=301,L] RewriteCond %{HTTP_HOST} !^(www.example.com)?$ [NC] RewriteRule (.*) http://www.example.com/$1 [R=301,L] Could adding the following code after that in the .htaccess potentially cause any issues? BEGIN EXPIRES <ifmodule mod_expires.c="">ExpiresActive On
Intermediate & Advanced SEO | | kimmiedawn
ExpiresDefault "access plus 10 days"
ExpiresByType text/css "access plus 1 week"
ExpiresByType text/plain "access plus 1 month"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType application/x-javascript "access plus 1 month"
ExpiresByType application/javascript "access plus 1 week"
ExpiresByType application/x-icon "access plus 1 year"</ifmodule> END EXPIRES (Edit) I'd like to add that there is a Wordpress blog on the site too at www.example.com/blog with the following code in it's .htaccess: BEGIN WordPress <ifmodule mod_rewrite.c="">RewriteEngine On
RewriteBase /blog/
RewriteRule ^index.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]</ifmodule> END WordPress Thanks0 -
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 -
Do I need to use canonicals if I will be using 301's?
I just took a job about three months and one of the first things I wanted to do was restructure the site. The current structure is solution based but I am moving it toward a product focus. The problem I'm having is the CMS I'm using isn't the greatest (and yes I've brought this up to my CMS provider). It creates multiple URL's for the same page. For example, these two urls are the same page: (note: these aren't the actual urls, I just made them up for demonstration purposes) http://www.website.com/home/meet-us/team-leaders/boss-man/
Intermediate & Advanced SEO | | Omnipress
http://www.website.com/home/meet-us/team-leaders/boss-man/bossman.cmsx (I know this is terrible, and once our contract is up we'll be looking at a different provider) So clearly I need to set up canonical tags for the last two pages that look like this: http://www.omnipress.com/boss-man" /> With the new site restructure, do I need to put a canonical tag on the second page to tell the search engine that it's the same as the first, since I'll be changing the category it's in? For Example: http://www.website.com/home/meet-us/team-leaders/boss-man/ will become http://www.website.com/home/MEET-OUR-TEAM/team-leaders/boss-man My overall question is, do I need to spend the time to run through our entire site and do canonical tags AND 301 redirects to the new page, or can I just simply redirect both of them to the new page? I hope this makes sense. Your help is greatly appreciated!!0