location.host vs location.hostname and cross-browser compatibility?

Question

Which one of these is the most effective vs checking if the user agent is accessing via the correct domain.

We would like to show a small js based \'top bar\' style

Answer 1

As a little memo: the interactive link anatomy

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In short (assuming a location of http://example.org:8888/foo/bar#bang):

• hostname gives you example.org
• host gives you example.org:8888