I know that you should not use multiple H1 tags... Can you use multiple h2 and h3 tags? also Will it to be any good is I use the same keywords in my H1,H2 and H3 tags?
I prefer to mirror the page title in the H1 tag, and use H2 and H3 tags properly... to head/summarize the content below it.
Well same keyword in H2, H3 doesn't make much difference instead u must try unique keywords which would increase user experience and in return u get good ranks in google. Placement of H1, H2, h3 is very important to have a good idea i got a great site which can really help u if ur site is dynamic shopping.com go check how they place it,,,,,,,,,,,,, now don't forget me when i give the link above google lover cya tc