the design of the site helps to find the google crwler a no of things

1) the meta, h1 title tags help to make the pages relavent to keywords
2) a good nav system helps to make sitelinks (which a very attractive feature)
3) of the sites downlaod time is low there's a chance of fast crawling rate (u cna adjut it f corse)\

but hacing a good design is always good
shabbir like this