If you don't want to spend a lot of money on web hosting, shared hosting is the way to go. This form of cheap web hosting places your website on a server with other sites. So, yes, your site literally shares server resources with others, hence the tier's name. This means that it's far from the most powerful web hosting type, however. The sites sharing the server compete for resources—everything from throughput to storage space. You'll want dedicated or virtual private server (VPS) hosting for muscle if you expect big traffic, or if you want to insulate yourself from big traffic spikes.
For those unlucky enough to choose an email host that doesn't have built-in spam detection, it can often be an ordeal to route email correctly through a third-party filtering service. Some businesses actually prefer engaging with a third-party spam filterer, mostly for compliance or customization reasons. But, for the majority of SMBs, this is headache they would be best off trying to avoid.
Our surprise find, Migadu is a little-known Swiss email hosting provider which delivers unbelievable price/performance value along with top-notch security. It lacks fancy features but does the job of email hosting with guaranteed privacy at the cheapest plan of $4/user/month. One may also go for Runbox and Amazon Work Mail, but it was outside the scope of this article.
You can also purchase Secure Sockets Layer certificates (starting at $69.99 per year), the software that's represented by a green padlock in your web browser when you visit, say, a financial institution's website. If you plan to sell products via your website, consider an SSL certificate an essential purchase, as it safeguards the data exchange between a customer and your servers.