- First name.
- Last name.
- Nickname (one, or many).
- Government identifier ("Social Security Number", and others).
- Home address.
- Business address.
- "Phone" number. How many phones do you have?
- Email address. How many email addresses do you have?
- SMS address (which may or may not be same as one or more "phone" numbers).
- Website address. How many websites do you publish?
- I'm not going to take all day writing this - give me a break!
Your blog has a number of ways of addressing it, too - and it may be to your benefit to consider each identifier, canonically.
Some identifiers are provided by Blogger, others by us - and some represent a joint effort.
- Blogger BlogID.
- Blog Title.
- Blog Name (BlogSpot / custom domain URL).
- Various aliases, maybe complementing the custom domain URL.
If you think of the search engines as "government" agencies (the search engines surely tax our patience), your blog has a "social security" number too. Built into the blog header, you'll find the "canonical" tag.
Here's the header for this blog.
<head> ... <link href='http://blogging.nitecruzr.net/' rel='canonical'/> <link rel="alternate" type="application/atom+xml" title="The Real Blogger Status - Atom" href="http://blogging.nitecruzr.net/feeds/posts/default" /> <link rel="alternate" type="application/rss+xml" title="The Real Blogger Status - RSS" href="http://blogging.nitecruzr.net/feeds/posts/default?alt=rss" /> <link rel="service.post" type="application/atom+xml" title="The Real Blogger Status - Atom" href="http://www.blogger.com/feeds/24069595/posts/default" /> ... </style>
There it is
link href='http://blogging.nitecruzr.net/' rel='canonical'/
With a Blogger blog, the canonical tag will always equal the published URL of the blog. When you setup a sitemap, you'll use the published URL in the sitemap. And, you setup a sitemap for a Blogger blog, using Google Webmaster Tools - and the Webmaster Tools entry for the blog will, likewise, be identical to the published URL.