The Impacts of being HTMl/ CSS treansitional with respect to: Search Engine Optimization (SEO) and Browser Compatibility.
Yes it depends on which search engine you are using, Yahoo, Google MSN. If the the coding behind your webite is not error free, not HTML/CSS transitional, after search engine detect anywhere from 1-4 errors on the page it will not index that page. Not indexing=equals not reading= your content being over looked. The more errors you have on your page, the more content that is not evaluated which in turn leads to lower placement in search engine. By being HTML Transitional you are ensuring that search engines read your site correctly and accurately evaluating all of our content. Being errors free and fully transitional will get you better natural placement and quicker load time. Also in doing so it also ensures that your site will look the same no matter what browser you are using.
Here at Ntira, our coding is 100% error free. Fully transitional. We position you to be search engine optimized now and well into the future.
Ntira
A very good site to check up and read further more is:
http://validator.w3.org