in seo area all people use same techniques in on page and off page but some website get top ranks and other down so main reason behind it is only website authority am i right ?
No there are lots of reason like keyword density, keyword popularity, using sites for promotion and other things.
You're downright wrong. How about asking the so-called SEO company in your signature? Google and the rest of the search engines has lots of ranking factors and, in theory, domain authority is just one out of the many.
there are a lot of reasons for SERP.. On page, offpage optimization, page rank, website age, backlinks are just a few of these factors. Although in certain cases, luck does strike and some websites with less optimizations get good rankings.
though website authority is a fact of ranking but domain age, keyword density also consider by google.
Just domain age will not help but if you have keyword based domain with good website age will help much better.
What do you mean by website authority? If we talk about Marriot or Hyatt or Hilton - then they are big brands. Its branding which you are referring. There are more than 200 factors on which Google's ranking depend -- link popularity, domain age, on-page/off-page seoing are just few of them.
Website authority is also a factor in ranking a site but it's just one factor. There are still other factor why a site ranks well in search engine.
Would mind explaining more about "authority" from your standing point? You are an seo company so I think we can learn something great from you. Most of our current standing point of "authority" are assumption because Google never exposed public.
That leaves a question, how do I get some of this website authority? The most important part is "Useful Information" if you cannot keep your visitors there for more than a couple seconds you have zero authority. Now I am not talking about pretty pictures or or movies (although if placed correctly could help a lot) But I mean honest to goodness information. The internet is here for information. Just like yourself when you look for something you want an answer, not a bunch of gibberish from someone promoting what is most of the time a useless product. If you can draw hundred a viewers a day and keep them on your site for a minute you have already gained website authority.