seo - dynamic text in <h1> tag -

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what impact on seo of changing text of <h1> dynamically on server side each time web page loads?

i'm not talking changing whole text, part of it, example if header contains fixed text (with keywords of course), , contains current date or time/the current number of logged on users/the count of items current in stock/whatever.

how affect ranking? bad? doesn't make difference?

thanks.

i don't think element need should h1, since semantically, h1 important heading on page can shouldn't contain isn't of crucial importance number of logged in users o time.

personally, use h1 important heading contains important keywords.

otherwise, can put wanted h1 , perhaps paragraph , put them in div altogether such purpose paragraph contains content irrelevant page , still harness value of h1 , content want in virtually same spot.


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