301 vs 302 Redirects in SharePoint

Recently I was faced with the request to implement some permanent 301 redirects for a publically facing SharePoint website. It was more of an investigative request rather than a call for action and as yet there has been no resolution, so rather than presenting a solution to the issue, this post will serve more as a discussion around it.

Rather than focus the article on the differences between a 301 and 302 redirect I’d rather point you in the direction of some existing resources that explain the details better than I could myself. The article Redirects: Permanent 301 vs. Temporary 302 does a good job in doing so.

The main concern around the 301 vs 302 redirect in SharePoint is 2-fold. Predominantly, there is a lot of information floating around the net in regards to the SEO implications of the 2 redirect techniques. To cut a long story short, 301 redirects are generally preferred from an SEO standpoint to 302 redirects. The problem being, SharePoint uses 302 redirects for its ‘Redirect Page’ layout. You can get a more in depth explanation of this in Jeff Cate’s post MOSS for Internet and 301 Redirects.

Those wanting to implement 301 redirects rather than the default 302 redirects are left with 2 main options. Firstly, IIS can be used to re-write the URLS (which serves as a 301 redirect). This can be done natively via an add-on in IIS7 and with a 3rd party add-on in IIS6. Secondly, the option exists to write a custom HttpModule to perform the 301 redirect as per Waldek Mastykarz’s post on Using 301 instead of 302 redirects. Waldek’s post is focussing more on another MOSS 302 redirect phenomenon rather than the Redirect Page layout but the concepts are still applicable.

I have a bit of an issue with both solutions. I should be attracted to the custom code option being a developer by trade, but from a complexity and maintainability point of view it doesn’t really appeal to me. It may be possible to architect a solution whereby the redirects are maintained in a SharePoint list improving the functions extensibility, and that’s probably the angle I would have looked into had time allowed, but it still seems like a bit of an overkill considering the IIS solution existed. The problem with the IIS solution however is (aside from it not being native in IIS6 which was being used in my instance) that maintenance would need to be conducted on the server by IT rather than the site owners.

Jeff posed the question in his post ‘Will it be in SharePoint 2010?’ – unfortunately, the answer is no. Waldek points out in a follow up post Using 301 instead of 302 (without code!) that they can be handled in IIS7 (required for SharePoint 2010) natively, which is true and how Jeremy Thake at NothingButSharePoint implemented their 301 Redirects in IIS7.5, but doesn’t solve the issue of giving access to site owners to perform the function. You really don’t want this administrative overhead placed on IT.

To be honest in my opinion we seem to be left with no ideal option. It would be nice (but still not ideal) if 301 redirects could be set and maintained via Central Administration (at least ensuring server access would not be necessary). It would be even better if they could be set and maintained in the Site Settings of the relevant site. Better still, an option on the redirect page to indicate whether it should be a 301 or 302 redirect would be perfect.

For now we’re left with the options presented. Having a personal interest in SEO myself it would be nice to see future versions of SharePoint tailored towards this goal in anyway possible, and making it easier to perform 301 redirects out of the box would be one way of getting there. Assuming SharePoint vNext is based on .NET 4.0 we should be a lot more likely to have this feature considering the 301 Redirects in .NET 4.0.

If it so happens that this piece of work is given the green light i’ll post a follow up on how the solution was achieved.

3 Responses to 301 vs 302 Redirects in SharePoint

  1. markious72 says:

    Hi Matt, this is a bit cheeky, but if you can help it would be great. We are just installing sharepoint, still at the testing phaze and the initial page takes ages to load over the network on a laptop, but loads fine and promptly over the network on a pc. Any ideas? Any list of things to check would be great? It can’t just be down to the performance of the hardware can it?



    • Matt says:

      Hey Mark – infrastructure related queries are not really my strong suite but I can brainstorm a few ideas. Is it a cabled connection v wireless connection difference? Hardware could be a factor but I wouldn’t have thought it’d be a major one for a vanilla install of SP with minimal client side processing – but on that note, are the browsers being used the same? Is there some sort of caching going on with the PC that wouldnt be occuring on the laptop? There’s a few things to check to start with anyway, good luck!

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