How to safely reduce the number of 301 redirects / should we be adding so many?
-
Hi All,
We lost a lot of good rankings over the weekend with no obvious cause. Our top keyword went from p3 to p12, for example.
Site speed is pretty bad (slower than 92% of sites!) but it has always been pretty bad. I'm on to the dev team to try and crunch this (beyond image optimisation) but I know that something I can effect is the number of 301 redirects we have in place.
We have hundreds of 301s because we've been, perhaps incorrectly, adding one every time we find a new crawl error in GWT and it isn't because of a broken link on our site or on an external site where we can't track down the webmaster to fix the link. Is this bad practice, and should we just ignore 404s caused by external broken URLs?
If we wanted to reduce these numbers, should we think about removing ones that are only in place due to external broken URLs?
Any other tips for safely reducing the number of 301s?
Thanks, all!
Chris
-
Really helpful. Thanks very much, Sha. Much appreciated!
-
Hi again Chris,
OK, well that makes it interesting!
First, if the list of 301's in your .htaccess file numbers in the hundreds, then there is definitely cause for concern about the effect it might be having on your load times.
The .htaccess file is read from top to bottom until a rule is matched. The first one that is matched will be used and no rule after that will be checked. Obviously, if there are hundreds of rules to check, this can cause processing bottlenecks.
Now there are some things you might be able to do to alleviate the problem IF you have the right conditions.
-
If your rebuild involved the relocation of an entire directory or directories which still contain the same pages as before, you can write a 301 Redirect for all pages in a directory with a single line of code
-
If there is a database behind your site and you have some means of matching pages from the old URL to the new (for example, is there a unique product ID for each page?) then you can use database lookups to write the redirects on the fly. This will eliminate the processing bottlenecks, but can only work if you have a reliable means of matching the pages.
-
If you have only one competition or offer at a time, then you could use database lookups to match any page with say, "competition" in the URL and 301 it to the current competition page (and the same with "offer").
-
For unknown links from external sites you can use a "catch-all" 301 to catch any other page that returns a 404 and send it to a single page (you put this rule at the very end of your .htaccess so it is the last to be matched). You could send these all to home, a generally relevant landing or category page, or a specially designed 404 page. The most important thing is that the page you redirect them to is as relevant as possible, or provides options that may keep the visitor on your site (search, menus etc). I prefer not to send these "random" 404's to home as they are likely to bring an increase in bounce rate. Since bounce is now acknowledged as a ranking factor, I prefer to keep any traffic with a higher probability of bouncing away from pages with the highest Page Authority (PA).
Hope that helps,
Sha
-
-
Yeah, that seems to be the consensus - thanks, Aaron!
Back to the drawing board diagnosing this drop - avg rank over our top 200 keywords has gone from 80-something to 120-something. Not good at all!
Chris
-
Hi Sha,
A combination of things, really. We rebuilt and got rid of a load of legacy pages so there's a few for that reason. We also have a lot of time-limited pages like competitions and special offers that require specific landing pages. The majority are caused by broken links on external sites though - links that never existed, or that have been crawled and added to an autogenerated page incorrectly. The usual nonsense.
So, in brief, there isn't really one cause!
Many thanks for your reply.
Chris
-
In general, 301 aren't bad unless you have a whole string of them. For instance if a 301 redirected to another 301, then another, etc... If 301's are shallow they usually do not present a problem.
-
Hi BaseKit,
What is the reason for there being so many 404's?
Did you move your site or rebuild your site structure? Do you have a lot of pages that are removed after a short time?
The answer to these questions will help to know what is the best approach for your situation.
Sha
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
-
Backlink management: 301 redirect unsuccessful.
I am managing my company's spammy backlinks using Open Site Explorer. Our company owns a few URLs that are related to our company or are iterations of our main URL. All of these additional URLs have 301 redirects to our main domain. Open Site Explorer has identified one of these URLs as having a spam score of 8 indicating a 56% chance of Google crawler penalization. Obviously, this is a red flag. Instead of being redirected to our main domain upon visiting the URL, I was directed to what seems to be an automatically generated, generic webpage with links that seem to have been generated by keywords from our main domain. I have seen this type of webpage before when incorrectly typing in URLs from other pages. They tend to look the same. They have a black background with the URL written in grey at the top and a rectangular related links bar. Is anyone familiar with my problem and could you offer any advice? Thanks, Ben
Technical SEO | | SOLVISTA0 -
301 Redirect Best Practices
Hi SEOs, Question about ranking/redirects. If I have a particular page that is already ranking for a couple KWs in top SERPs, but know there are higher volume KWs I can optimize for should I just leave it as is or change the URL key and redirect for the time being until Google re-indexes. Example:
Technical SEO | | IceIcebaby
current URL: www.example.com/action/best-movies
new URL: www.example.com/action/best-action-movies
(the current would be ranking for "best action moves" whereas the new would include the actual "best action movies" KW) Let me know if I can clarify, thank you!0 -
Htaccess code to 301 redirect a folder change
Hi, I need some help to redirect all my site as there was a folder change. eg, the old structure was www.mysite.com/stuff-1/bags.html and I need it to go to the same structure without the "-1" eg: /stuff/bags.html
Technical SEO | | Paul_MC
The "bags.html" will be lots of different products, so this would be a wildcard? What would the htaccess code need to be? Thanks0 -
301 redirect of a subdirectory
Hello! I am working on a website with the following structure: example.com/sub1/sub2/sub3. The page "example.com/sub1" does not exist (I know this is not the optimal architecture to have this be a nonexistent page). But someone might type that address, so I would like it to redirect it to example.com/sub1/sub2/sub3. I tried the following redirect: redirect 301 /sub1 http://example.com/sub1/sub2/sub3. But with this redirect in place, if I go to example.com/sub1, I get redirected to example.com/sub1/sub2/sub3/sub2/sub3 (the redirect just inserts extra subdirectories). If someone types "example.com/sub1" into a browser, I would "example.com/sub1/sub2/sub3" to come up. Is this possible? Thank you!
Technical SEO | | nyc-seo0 -
301 redirect or 302
A client of mine has an international company named www.taxglobalizers.com if you come from Holland they 302 redirect you to the www.taxglobalizers.com/en version of the site and if you come from Holland they redirect with a 302 to www.taxglobalizers.com/nl version. I think it is best to change this in a 301 redirect. Am i correct in this? Kind Regards, Ruud
Technical SEO | | RuudHeijnen0 -
Trailing slash 301 redirect code
Hi, I have code for redirecting trailing slash to non-trailing slash, which works fine: RewriteCond %{HTTP_HOST} !^.yourdomain.co.uk$ [NC]RewriteRule ^(.+)/$ http://%{HTTP_HOST}/$1 [R=301,L] (got code from http://googlewebmastercentral.blogspot.com/2010/04/to-slash-or-not-to-slash.html) But I cant find a code for redirecting to the trailing slash version anywhere, and I cant modify the above code myself. Can someone help resolve this issue please, or point me to a resource. Thanks very much James
Technical SEO | | jamesjackson0 -
What are the SEOmoz-suggested best practices for limiting the number of 301 redirects for a given site?
I've read some vague warnings of potential problems with having a long list of 301 redirects within an htaccess file. If this is a problem, could you provide any guidance on how much is too much? And if there is a problem associated with this, what is that problem exactly?
Technical SEO | | roush0