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.
Is there a limit to Internal Redirect?
-
I know Google says there is no limit to it but I have seen on many websites that too many 301 redirects can be a problem and might negatively affect your rankings in SERPs.
I wanted to know especially from people who worked on large ecommerce site. How do they manage internal redirect from one URL to other and how many according to you are too many. I mean if you get a website that contain 300 plus 301 redirections within the website, how will you deal with that?
Please let me know if the question is not clear.
-
Right. Chain redirects = bad.
However, in the same video of Matt Cutts, he does say that the overall amount doesn't matter, and that's what I was talking about in first part of my previous answer.
Now, let's crunch some numbers to show you that the number of no-chain redirects doesn't matter.
-
Assume that we are in perfect world, so all given manufacturer given numbers actually right and all operations per second are actually operations per second
-
Lets say that standard hosting server is 2GHz power = 2*10^9 computations per second
-
Since all htaccess work/computations are strictly on a server side (bots/browsers just send request to server for response if page should be redirected), the only time which can slow down the request is server response time.
-
Match computations are always considered low computation power processes.
-
so, let's say you have htacces with 1 000 000 redirect rules, server keeps it in memory to do match computations when bots make requests, it means that 2GHz server has to have 2000 requests per second to just START struggling.
So, do you have 2000 requests per second to your website and 1 million redirect rules?
P.S. All number above are very rough approximations
P.P.S. If you really wanna see if your server is/ would struggle - login into web host manager, go to server status and info, look and see how much of your server power is usually being used. Usually that number is lower than 6-7% at 90% of the time.
Hope this clarify some things
-
-
I am going to say what I do and how I think that it works. I am not saying that this is correct or best practice.
When I abandon a URL I do not place the redirect in the .htaccess file in the root directory. Instead, I place an .htaccess file in the folder where the URL was saved. That limits the size of my .htaccess file in the root directory. I believe that reduces the amount of work that your server must do, it does not need to examine a very large .htaccess file.
If you use many folders to categorize your content then you will have small .htaccess files that are easier to manage. From time to time you will be able to redirect entire folders instead of individual files when you abandon a product line or a category of content.
That's what I do.
-
I think you get me wrong, you are talking probably talking about chain redirects as in from a to b and than b to c and may be d. For this Matt himself said in one of his Webmaster videos that Google might not crawl the link after 2 or may be 3 stages.
I am more concern about redirects in total because redirect increase the page load time and page load time is a factor in Google rankings which make me think again before go ahead and set 1000+ redirection (for example)!
But thanks for your reply!
-
I've not seen any instances of a limit to how many redirects you can have pointing to your website. I have some clients who have thousands of redirects in place (lots of old pages being moved to a new version of that product). Those sites haven't had any issues with rankings at all. In fact, many of the links pointing to the sites still reference the URLs that are redirected and those pages that are redirected to are ranking perfectly fine.
The biggest limit I've seen is on chaining. I've seen issues where chained redirects simply aren't followed. However, if you can keep it to a 1 step redirect, or 2, then things should be okay. It doesn't sound like that is what you are asking about though. More from Matt Cutts on this:
http://www.searchenginejournal.com/matt-cutts-discusses-301-permanent-redirects-limits-on-websites/46611/In terms of managing those redirects, you can't usually keep this many on an htaccess file without going a little bit nuts (or risking some future dev deleting those in an effort to clean up the htaccess file - ug). If you are using WordPress, the 301 redirects plugin works quite well: https://wordpress.org/plugins/301-redirects/
Unfortunately, I've also run into sites that aren't in a CMS where you can use a plugin. In those cases, I usually put these redirects in a database table. On the 404 file, I then have the code check the would-be error URL to see if we need to redirect that URL somewhere else. If a redirect is place, it redirects instead of throwing the 404 error. If no redirect is in place, the code then throws a 404 error.
Hope that helps.
-
Hello, my friend.
Well, whenever people says "don't have too many redirects", it doesn't mean not to have too many redirects in total count, for example, if you have old page
a.php redirected to b.php,
and old page c.php redirected to d.php
and so on - there is no any problem. However, what they mean is not to have consecutive redirects - eg.:a.php redirects to b.php, which redirects to c.php, which redirects to d.php, instead of a.php redirecting to d.php straight forward.
Hope this helps.
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
-
301 redirect syntax for htaccess
I'm working on some htaccess redirects for a few stray pages and have come across a few different varieties of 301s that are confusing me a bit....Most sources suggest: Redirect 301 /pageA.html http://www.site.com/pageB.html or using some combination of: RewriteRule + RewriteCond + RegEx I've also found examples of: RedirectPermanent /pageA.html http://www.site.com/pageB.html I'm confused because our current htaccess file has quite a few (working) redirects that look like this: Redirect permanent /pageA.html http://www.site.com/pageB.html This syntax seems to work, but I'm yet to find another Redirect permanent in the wild, only examples of Redirect 301 or RedirectPermanent Is there any difference between these? Would I benefit at all from replacing Redirect permanent with Redirect 301?
Technical SEO | | SamKlep1 -
301 redirects delay in picking up
Hi I have been involved in the redesign/development of a website which has up until now had a lot of international traffic. On day of migration I uploaded all the 301 redirects to the website (wordpress) using Simple 301 redirect plugin. I tested a number of them and they appeared to be working. I also submitted the new sitemaps to Search Console. Since migration international traffic - particularly from countries such as india, Phillipines, Sri Lanka etc have significantly dropped off whereas the local traffic and some of the international traffic such as USA has remained fairly consistent. Looking at Analytics and entrances recently it appears as though search results are/were showing a number of pages with 404's (one in particular which received significant traffic and for which I had created a 301 redirection) - I have checked this page using the old url and it re-directs correctly for me and today asked a colleague in India to also check - he is getting the redirection fine. Does Google.in take a significantly longer time to pick these up in search results? Or am I missing something?
Technical SEO | | musthavemarketing0 -
Redirect root domain to www
I've been having issues with my keyword rankings with MOZ and this is what David at M0Z asked me to do below. Does anyone have a solution to this? I'm not 100% sure what to do. Does it hurt ranking to have a domain at the root or not? Can I 301 redirect a whole site or do I have to do individual pages. "Your campaign is looking for rankings for the www version of the campaign but the URL resolves as a root domain. This would explain the discrepancy. Since there is no re-direct between the two, you can have brickmarkers.com 301 re-direct to www.site.com which will prevent you from re-creating your campaign to track the root domain. Once the re-direct is in place it will take a while for Google to show the www version in the results in which your campaign rankings will be accurate." Thanks
Technical SEO | | SeaDrive0 -
301 redirect relative or absolute path?
Hello everyone, Recently we've changed the URL structure on our website, and of course we had to 301 redirect the old urls to the coresponding new ones. The way the technical guys did this is: "http://www.domain.com/old-url.html" 301 redirect to "/new-url.html"
Technical SEO | | Silviu
meaning as a relative redirect path, not an absolute one like this:
"http://www.domain.com/old-url.html" 301 redirect to "http://www.domain.com/new-url.html" This happened for few thousands urls, and the fact is the organic traffic dropped for those pages after this change. (no other changes were made on these pages and the new urls are as seo friendly as possible, A grade on On-Page Grader). The question is: does the relative redirect negatively affects seo, or it counts the same as an absolute path redirect? Thanks,
S.0 -
CNAME vs 301 redirect
Hi all, Recently I created a website for a new client and my next job is trying to get them higher in Google. I added them in OSE and noticed some strange backlinks. To my surprise the client has about 20 domain names. All automatically poiting to (showing) the same new mainsite now. www.maindomain.nl www.maindomain.be
Technical SEO | | Houdoe
www.maindomain.eu
www.maindomain.com
www.otherdomain.nl
www.otherdomain.com
... Some of these domains have backlinks too (but not so much). I suggested to 301 redirect them all to the main site. Just to avoid duplicate content. But now the webhoster comes into play: "It's a problem, client has only 1 hosting account, blablabla...". They told me they could CNAME the 20 domains to the main domain. Or A-record them to an IP address. This is too technical stuff for me. So my concrete questions are: Is it smart to do anything at all or am I just harming my client? The main site is ranking pretty well now. And some backlinks are from their copy sites (probably because everywhere the logo links to the full mainsite url). Does the CNAME or A-record solution has the same effect as a 301 redirect, from SEO perspective? Many thanks,
Hans0 -
301 redirect from Blogger
Hello, I have a client with a Wordpress network of blogs, each blog is owned by a different blogger. Many of them were migrated time ago from Blogger. I have seen that the way used to redirect them is a meta refresh, so no authority is being passed. I cannot find any reliable way of making a 301 from Blogger, There are some plugins, but I'm afraid of using them. Any of you have experience with this situation please? I have even thought about placing a global rel canonical before the meta refresh, but I think that here the problem is the meta refresh itself.... Thank you in advance
Technical SEO | | Juandbbam0 -
International Site Links In Footer
We have several international sites and we have them linked in the footer of our main .com site . Should we add "nofollow" to these links? Our concern is that Google could see these sites as a network?
Technical SEO | | EwanFisher0 -
How long should I keep 301 redirects?
I have modified a the URL structure of a whole section of a website and used mod_rewrite 301 redirect to match the new structure. Now that was around 3 months ago and I was wondering how long should I keep this redirect for? As it is a new website I am quite sure that there are no links around with the old URL structure but still I can see the google bot trying from time to time to access the old URL structure. Shouldn't the google bot learn from this 301 redirect and not go anymore for the old URL?
Technical SEO | | socialtowards0