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.
DNS vs IIS redirection
-
I'm working on a project where a site has gone through a rebrand and is therefore also moving to a new domain name. Some pages have been merged on the new site so it's not a lift and shift job and so I'm writing up a redirect plan.
Their IT dept have asked if we want redirects done by DNS redirect or IIS redirect. Which one will allow us to have redirects on a page level and not a domain level?
I think IIS may be the right route but would love your thoughts on this please.
-
If you are not changing the IP address you don't need to change the DNS, if you change the IP address, in addition to updating the DNS records you also need to properly redirect traffic from old urls to new urls.
With IIS the best option is using url rewrite, which is very flexible but a little tricky to set up if it's the first time you do so: http://www.iis.net/learn/extensions/url-rewrite-module/creating-rewrite-rules-for-the-url-rewrite-module
Url rewrite does operate at web server level, its powerful and does the job, but you may consider doing redirects at application level, depending on the technology you use, php/dotnet/aspx/mvc you have different tools. The advantage of doing it at application level is you can redirect dynamically, in other words use an algo to translate the old urls to the new ones using whatever information is stored in the application cache, database, and so on. While using IIS url rewrite you either statically redirect each old url to a the new url or you use regular expressions or wildcards to dynamically do so. In other words using url rewrite you have a little less flexibility.
-
Within IIS you use the IIS Manager. Here's a blog on page-by-page: http://www.proworks.com/blog/2010/02/11/adding-a-301-redirect-in-iis-for-individual-pages-with-non-aspx-extensions/ It's older but still applicable.
There's also software available like ISAPI_rewrite that can help with the process if you're migrating between Apache and Windows servers: http://www.helicontech.com/isapi_rewrite
The Windows doc on this: http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/6b855a7a-0884-4508-ba95-079f38c77017.mspx?mfr=true
-
Thank you very much. What file would manage page by page or directory by directory redirects on an IIS server?
-
It sounds like you're talking about CNAME vs a 301 redirect.
DNS can't really "redirect", at least in the SEO sense. A CNAME DNS entry acts as a pointer to another site. Sooner or later you have to have an A record to act as the "glue" between yourdomain.com and an IP where it can be accessed. The problem is that yourdomain.com is the end result. So even if it is just a CNAME for loadbalancer.abc.some.cloud.com, it will be seen as yourdomain.com by both the browser and any robots that visit.
A 301 redirect is an actual instruction (HTTP response code) from the web server (IIS in your case) to the end browser, saying that yourdomain.com really belongs over at anotherdomain.com. At that point your browser (or crawling robot) goes to the new domain. This is considered the proper SEO way to redirect anything, as it is known that robots respect the 301 response and most SEO benefits that the previous link had will flow through the 301 to your new page.
-
Hi
If I understand them correctly....
DNS change would be the location for site x is now at this IP. (IP Location Change)
IIS change would be server y is now server x. (Hardware Location Change)
In which case an IIS change would likely be preferred as you don't have to wait for the new DNS update to propagate.
Hope that helps,
Don
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
-
What is the difference between 301 redirects and backlinks?
i have seen some 301 redirects on my site billsonline, can anyone please explain the difference between backlinks and 301 redirects, i have read some articles where the writer was stating that 301 are not good for website.
Technical SEO | | aliho0 -
How do you fix redirect chains and temporary redirects?
Hi, I have a lot of issues popping up with temporary redirects and redirect chains. I'm still confused as to what exactly redirect chains are and I don't know how to find where the "chains" are or how to fix them. I'm having two issues mainly:1. Temporary RedirectsI have around 100 pages on our www.twowayradiosfor.com website that are being flagged as temporary redirects. All of them have one thing in common: they are review pages (basically, when a customer clicks on the Review button to review a certain product, they are redirected to a review page for that product).URL Example: https://www.twowayradiosfor.com/reviewhelpful.asp?ProductCode=CLS1410-COMBO&ID=44&yes=noI went into our website and set any URL containing the following as noindex:/review.aspWill that fix the issue? If yes, will I also need to do that for any URL containing /reviewhelpful.asp?2. Redirect ChainsIt seems like basically every product page on my website has this issue (over 100 pages). Here's an example of one:https://www.twowayradiosfor.com/Motorola-CLS1110-p/cls1110.htmI don't see any broken links on this page or links that redirect to another page that redirects, etc. What is causing this? Is it something on my header bar that is redirecting (since that header bar appears on every page, maybe that is why this issue shows up on a lot of pages)?I am new to Moz and still trying to figure this stuff out. I really appreciate any help. Thanks, Sawyer
Technical SEO | | AllChargedUp0 -
Cant find source of redirect
Hey guys, I have a bizarre situation on my hands. I have a URL that is being wonky. The url is redirecting to another url and the 301 redirect is not in my htaccess. There is a 301 redirect in my htaccess but is being overwritten by something else, i.e. whatever is happening in above. So basically URL A should be redirecting to URL B but instead its going to URL C. I know we were not hacked, it's not redirecting to a strange bizarre domain. I have also disabled all of our plugins that redirect (to my knowledge) Any thoughts would be great!
Technical SEO | | HashtagHustler0 -
Max Number of 301 Redirections?
Hi, We currently made a re-design of a website and we changed all our urls to make them shorter. I made more than 300 permanent redirections but plenty more are needed since WMT is showing some more 404s from old urls that I hadn't seen because they were dynamic. The question is, please, is there a limit? I think we have more than 600 already. We don't want to create a php commando to redirect all the old ones to our home, we are redirecting them to their correspondent url. By the way, Im doing them with the 301 method in .htaccess. Thanks in advance.
Technical SEO | | Tintanus0 -
Is there a tool to see all redirects?
I'm thinking this is a silly question, but I've never had to deal with it I thought I'd ask. Ok is there a tool out there that will show all the redirects to a domain. I'm working on a project that I keep stumbling on urls that redirect to the site I'm studying. They don't show up in Open Site or ahrefs as linking domains, but they keep popping up on me. Any thoughts?
Technical SEO | | BCutrer0 -
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 -
Increase 404 errors or 301 redirects?
Hi all, I'm working on an e-commerce site that sells products that may only be available for a certain period of time. Eg. A product may only be selling for 1 year and then be permanently out of stock. When a product goes out of stock, the page is removed from the site regardless of any links it may have gotten over time. I am trying to figure out the best way to handle these permanently out of stock pages. At the moment, the site is set up to return a 404 page for each of these products. There are currently 600 (and increasing) instances of this appearing on Google Webmasters. I have read that too many 404 errors may have a negative impact on your site, and so thought I might 301 redirect these URLs to a more appropriate page. However I've also read that too many 301 redirects may have a negative impact on your site. I foresee this to be an issue several years down the road when the site has thousands of expired products which will result in thousands of 404 errors or 301 redirects depending on which route I take. Which would be the better route? Is there a better solution?
Technical SEO | | Oxfordcomma0 -
Do search engines treat 307 redirects differently from 302 redirects?
We will need to send our users to an alternate version of our homepage for a few hours for a certain event. The SEO task at hand is to minimize the chance of the special homepage getting crawled and cached in the search engines in place of our normal homepage. (This has happened in the past so the concern is not imaginary.) Among other options, 302 and 307 redirects are being discussed. IE, redirecting www.domain.com to www.domain.com/specialpage. Having used 302s and 301s in the past, I am well aware of how search engines treat them. A 302 effectively says "Hey, Google! Please get rid of the old content on www.domain.com and replace it with the content on /specialpage!" Which is exactly what we don't want. My question is: do the search engines handle 307s any differently? I am hearing that the 307 does NOT result in the content of the second page being cached with the first URL. But I don't see that in the definition below (from w3.org). Then again, why differentiate it from the 302? 307 Temporary Redirect The requested resource resides temporarily under a different URI. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field. The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s) , since many pre-HTTP/1.1 user agents do not understand the 307 status. Therefore, the note SHOULD contain the information necessary for a user to repeat the original request on the new URI. If the 307 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued.
Technical SEO | | CarsProduction0