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
-
We are redirecting http and non www versions of our website. Should all versions http (non www version and www version) and https (non www version) should just have 1 redirect to the https www version?
We are redirecting http and non www versions of our website. Should all versions http (non www version and www version) and https (non www version) should just have 1 redirect to the https www version? Thant way all forms of the website are pointing to one version?
Intermediate & Advanced SEO | | Caffeine_Marketing0 -
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 -
Redirecting non www site
Hello Ladies and Gentlemen. I 100% agree with the redirecting of the non www domain name. After all we see so many times, especially in MOZ how the two different domains contain different links, different DA and of course different PA. So I have posed the question to our IT company, "How would we go about redirecting our non www domain to the www version?", "Where would we do that?", " we cant do the redirect on our webserver because the website is listed as an IP address, not a domain name, so would we do the redirect somewhere at GoDaddy?" who is currently maintain our DNS record So here is the response from IT: " I would setup a CNAME record in DNS (GoDaddy), such that no matter if you go to the bare domain, or the www, you end up in the same place. As for SEO, having a 301 redirect for your bare domain isn't necessary, because both the bare domain and the www are the same domain. 301 is a redirect for "permanently moved" and is common when you change domain names. Using the bare domain or the www are NOT DIFFERENT DOMAINS, so the 301 would not be accurate, and you'd be telling engines you've moved, when you haven't - which may negatively impact your rank. It sounds to me that IT is NOT recommending the redirect. How can this be? Or are we talking about two different things? Will the redirect cause the melt down as the IT company suggests? Or do they nut understand SEO?
Intermediate & Advanced SEO | | Davenport-Tractor0 -
Wildcard Redirects & Canonical Tags
I have an interesting situation. Current URLs Example1: www.domain.com/red-widgets-cid-1234.html
Intermediate & Advanced SEO | | NakulGoyal
www.domain.com/red-widgets-cid-1234-1.html
www.domain.com/red-widgets-cid-1234-1-1.html Canonical on All Above URLs:
www.domain.com/red-widgets-cid-1234.html New URL:
www.domain.com/red-widgets-cid-4567.html Current URLs Example2: www.domain.com/red-widgets-cid-1234+10.html
www.domain.com/red-widgets-cid-1234+10-1.html
www.domain.com/red-widgets-cid-1234+10-1-1.html Canonical on All Above URLs:
www.domain.com/red-widgets-cid-1234+10.html New URL:
www.domain.com/red-widgets-cid-6789.html Current URLs Example3: www.domain.com/red-widgets-cid-1234+10+5.html
www.domain.com/red-widgets-cid-1234+10+5-1.html
www.domain.com/red-widgets-cid-1234+10+5-1-1.html Canonical on All Above URLs:
www.domain.com/red-widgets-cid-1234+10+5.html New URL:
www.domain.com/american-red-widgets-cid-6789+5.html I want to make sure all variations of the above URL redirect to the new URLs. However, as you see in Example 3, we are dealing with variables that are passed on. (+5 in this case). Question 1: What wildcard 301 redirect / regular expression can I use to tackle these ? Question 2: If we redirect www.domain.com/red-widgets-cid-1234+10+5.html to www.domain.com/red-widgets-cid-6789+5.html and www.domain.com/red-widgets-cid-6789+5.html contains the canonical tag www.domain.com/american-red-widgets-cid-6789+5.html, any concerns or red flags here ?0 -
DNS or 301 Website Redirect
We are running a marketplace site, so we have thousands of vendors selling their products on our site. Each vendor has a Profile page and we are soon to launch a premium store-front that is white label. Many of these vendors will want to point a custom url to their premium store-front (which is a sub domain of the marketplace) and we are trying to get an understanding of how we should instruct them to point their url in a way that will give the main marketplace site the seo juice. We also want to understand what will show up in the address bar. Will it be their url or our sub domain? Will any of the marketplace seo juice boost their url local listing status?
Intermediate & Advanced SEO | | bloomnation0 -
Is 301 redirect suggested on pagination pages
Hi - Due to pagination the default page of site is coming in 2 url with - ?page=1/ sub-url and /sub-url is 301 a recommended solution due to this pagination urls Also - is it required to create separate title and meta description of every pagination page We are taking specifically in context of our discounts and offer section http://www.mycarhelpline.com/index.php?option=com_offers&view=list&Itemid=9
Intermediate & Advanced SEO | | Modi0 -
Cookies and redirects - what are the negative effects?
I am advising a client who wants to streamline their online customers experience through the use of cookies. The first time someone visits mysite.com, they will visit the normal index page, and on that page will be asked to identify themselves as a Personal or Business customer - and taken through to a relevant page. This will result in a cookie being added. The next time they come back to mysite.com, the cookie will automatically direct them from the index page to mysite.com/personal/ or mysite.com/business/. My question is, what are the SEO implications of this, especially given the fact the index page is their primary landing page for almost all organic traffic? Bots I realise that googlebot etc do not store cookies, so this should result in no change from the bots perspective (i.e. no redirect) but is it that simple? In effect we'll be showing the bot one thing and second time + visitors something else. Is this not effectively cloaking? All advice gratefully received!
Intermediate & Advanced SEO | | seomasters0 -
Keyword-Rich Domains - Redirect?
Hi, Mozzers- I have a client that has a bunch of pretty nice keyword-rich domain names. Their traffic and rankings are good. They provide legal services in the Chicago area. I have lots of good content that I could use to start a blog using a domain like keyword,keyword-blog.com. Good idea? Currently I have a resources area on their website but feel like this area could be getting a little bloated and some news-related stuff isn't really appropriate. 2 Questions: Should I use one of the decent domains for a blog and build up the rankings, traffic, and link to the main site? Or is this lots of work for little payout? Both sites would be hosted in the cloud. Some of the domain names are related to their name, others are keyword or geo-targeted. Would it be wise to setup 301 redirects going to their website? Pros/cons? If you need additional info, please PM me for details. Thank you, friends! LHC
Intermediate & Advanced SEO | | lhc670