Www. is deprecated

no-www.org

3 pointscaustic3 comments

Unfortunately on Google App Engine you can not use primary domains (or whatever they are called). So www seems like an obvious choice for apps there.

Keeping www allows hosting static content in cookieless subdomain (without getting new domains) which speeds up page loading.

Using www.* gives you more options for load-balancing and distributing your website too, since an A record can only resolve to an IP address.

I recently learned that the hard way when the Amazon Elastic Load Balancer IP address we were pointing our A record at abruptly went out of service. Serendipitously, we had already been preferring www.* for some arbitrary reasons so it was an easy fix. And it turns out we're reaping the benefit of what Johann describes too, as we are also serving a large number of images from a separate subdomain.

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