Your top goal is to have a secure website that is easy to access for all users. Google will steer traffic away from your website if it has an inkling that there may be something fishy about it. First, you will need to have an SSL Certificate. Your URL will display as https instead of http. The ‘s’ tells Google that it is a secured site.
Second, there should be a sitemap that will break down all the pages on your website. Google loves that kind of data because it makes finding and crawling those pages easier for the search engine. Lastly, you have to watch for viruses on your website. They can come from links, so be sure that your linking strategy is sound. If Google thinks there are viruses somehow attached to your website, you’re done.