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.
303 redirect
-
Hi,
303 redirect is a good thing or not ?
I have a homepage in 2 languages FR and EN > mywebsite.com/fr/ and mywebsite.com/en/.
A 303 redirect is on mywebsite.com to mywebsite.com/fr/.
Thanks
D.
-
Hi Wesley & D.,
I really appreciate the what you said & did however I did not administer the experiment or create content.
Thank you for the kind words however I did not do the work for this I only for the used it as a reference to describe the situation.
I am glad it helped,
All the best,
Thomas
-
Very descriptive answer. Love that you describe your entire experiment.
Thank you for this extra bit of information.
-
affect SERPs the 303 redirect remains fairly unknown because it is rarely used.
I came across a website linking to one of my sites with a 303 but I could not find a definitive answer of whether or not this link passed any PageRank. Information online about this was scarce and the only information I found was from people saying that only 301 redirects pass PageRank.
When I checked the status code for 303 redirect at w3.org it was “See other” . The description reads as follows:
“The new URI is not a substitute reference for the originally requested resource. The 303 response MUST NOT be cached, but the response to the second (redirected) request might be cacheable.”
This sounds very black and white and I my initial guess was that Google does not flow PR for 303 redirects. But I was curious, how was Google treating 303 redirects?
I set up an experiment to check how Google was handling the 303. Results below:
*Note: The translation for this keyword is NSFW

Google will show the search result with the URI that is initially requested. It will then show the Page Title and Meta Description (or other descriptive snippet) for the redirected page but it will show the URI from the redirecting page. It is caching the text from the final page but assigning it to the requested page.
How Google caches 303 redirects
Page A 303 redirects to Page B
Title: Page B
URI: Page A
Meta Description: Page B
Since page B does not rank for this keyword it is confirmed that the 303 redirect does not flow PR.
How did I set this test up?
- I chose a rare keyword that had very few pages ranking for it.
- On www.a.com I created two pages containing the keyword with the same exact content (www.a.com/a.htm .com/b.htm)
- One page (www.a.com/a.htm) was linked to internally multiple times
- One page (www.a.com/b.htm) was linked to externally with 303 redirects only from two domains (including www.marketingchip.com)
- The 303 redirects were created on the external pages (www.marketingchip.com/special-doors.html -> 303 -> www.a.com/b.htm)
After a few days neither www.a.com/a.htm nor www.a.com/b.htm appear in the results. However the number one listing for this keyword was forwww.marketingchip.com/special-doors.html but the meta title and the meta description are taken from www.a.com/b.htm. I acquired the information from this URL and would agree with Wesley definitely 301 redirect the link to not use a 303 and less you are trying to accomplish something similar to what it's shown above or in Wesley's comment. http://www.marketingchip.com/seo-experiments/how-does-a-303-redirect-affect-seo/ Sincerely, Thomas
-
A 303 won't send 'link juice' that means that all the value you website gets on mywebsite.com won't be send to mywebsite.com/fr/. You should use a 301 instead.
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
-
Htaccess - Redirecting TAG or Category pages
Hello Fellow Moz's, We have an issue redirecting some /TAG and /Category pages to inner pages. As an example we use: RedirectMatch 301 /category/Sample-Category(.*) https://OurDomain.com.au/New-Page//$1 That works well. The issue is we have other categories and tags that are named similar to /Sample-Category As an example, if we try to redirect /Sample-Category-1 to /New-Page-1 - it will not work, and redirects to /New-Page I assume this is because /Sample-Category is already being redirected, so anything after /Sample-Category like -1 or -2 or -3 etc, will not be recognized. Anyone know of a workaround?
Intermediate & Advanced SEO | | Jes-Extender-Australia0 -
Help with force redirect HTTP to HTTPS
Hi, I'm unsure of where I should be putting the following code for one of my Wordpress websites so that they redirect all HTTP requests to HTTPS. RewriteEngine On RewriteCond %{HTTPS} !=on RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301] This is my current htaccess file: *missing
Intermediate & Advanced SEO | | Easigrass0 -
Googlebot being redirected but not users?
Hi, We seem to have a slightly odd issue. We noticed that a number of our location category pages were slipping off 1 page, and onto page 2 in our niche. On inspection, we noticed that our Arizona page had started ranking in place of a number of other location pages - Cali, Idaho, NJ etc. Weirdly, the pages they had replaced were no longer indexed, and would remain so, despite being fetched, tweeted etc. One test was to see when the dropped out pages had been last crawled, or at least cached. When conducting the 'cache:domain.com/category/location' on these pages, we were getting 301 redirected to, you guessed it, the Arizona page. Very odd. However, the dropped out pages were serving 200 OK when run through header checker tools, screaming frog etc. On the face of it, it would seem Googlebot is getting redirected when it is hitting a number of our key location pages, but users are not. Has anyone experienced anything like this? The theming of the pages are quite different in terms of content, meta etc. Thanks.
Intermediate & Advanced SEO | | Sayers0 -
Does Google Index URLs that are always 302 redirected
Hello community Due to the architecture of our site, we have a bunch of URLs that are 302 redirected to the same URL plus a query string appended to it. For example: www.example.com/hello.html is 302 redirected to www.example.com/hello.html?___store=abc The www.example.com/hello.html?___store=abc page also has a link canonical tag to www.example.com/hello.html In the above example, can www.example.com/hello.html every be Indexed, by google as I assume the googlebot will always be redirected to www.example.com/hello.html?___store=abc and will never see www.example.com/hello.html ? Thanks in advance for the help!
Intermediate & Advanced SEO | | EcommRulz0 -
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 -
Redirecting one site to another for link juice
I have two sites with same theme - buying cars. I am going remove one of the sites from being crawled permenantly (ie junkthecars.com) and point domian via 301, to another similar theme site (sellthecars.com). The purpose is to simply pass the SEO link juice from one site to the other as we retire junkthecars.com.... Is a forwarding of the domain OK and the best way for the search engines to increase the rank of sellthecars.com (we hate to wast the link work done on Junkthecars.com)? What dangers should I look for that could hurt sellthecars.com if we do the redirect at a simple TLD?
Intermediate & Advanced SEO | | bestone0 -
Buying an existing domain with higher ranks for redirecting
I've recently came across one of my competitors who's looking to sell their domain. Now they currently rank higher than my primary site for a few keywords we are targeting. Would it be wise to buy the domain and do a name server change over to my primary domain? Would it even help boost ranks for the keywords they rank higher for? Or will the link juice be minimal? Any thoughts would be great!
Intermediate & Advanced SEO | | upick-1623910 -
Subdomains and SEO - Should we redirect to subfolder?
A new client has mainsite.com and a large numer of city specific sub domains i.e. albany.mainsite.com. I think that these subdomains would actually work better as subfolders i.e mainsite.com/albany rather than albany.mainsite.com. The majority of links on the subdomains link to the main site anyway i.e. mainsite.com/contactus rather than albany.mainsite.com/contactus. Having mostly main domain links on a subdomain doesnt seem like clever link architecture to me and maybe even spammy. Im not overly familiar with redirecting subdomains to subfolders. If we go the route of 301'ing subdomains to subfolders any advice/warnings?
Intermediate & Advanced SEO | | AndyMacLean0