Many web hosting services offer a low "starting price," but require you to prepay for two or three years of service to get that price. After the promotional period, the renewal price for some web hosting services can be two, three, or even four times the initial promotional pricing. While the initial deal might be incredible, the cost of transferring your site (or paying the added fee) in a couple of years may be something to consider for even the cheapest web hosting service.
That being said, search engines like Google strongly prefer websites that are secured with an SSL from a Certificate Authority because it's safe for the searcher to visit and buy things on that website. Search engines are more likely to rank SSL-secured sites higher in search results because of these reasons, and Google Chrome has even started warning users when they're visiting an website that is "not secure".
Most apps I tried to install were worthless and at the renewal time for domain name and space, if you choose not to renew through them you will get an email saying they turn your account over to their attorneys then they will find your new credit card number and put it in without your permission and try to charge it anyway.. I cancelled their service on the spot and notified my CC it had been hacked.
No. An SSL can only be installed on a single "hostname", which is one variation of one domain name. SSLs do not cover multiple domains, or multiple subdomains. For example, you can install an SSL on store.yoursite.com, but then it won't cover yoursite.com, and vice-versa. It only encrypts the hostname it's installed on. (A Wildcard SSL covers every hostname of a single domain.)
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