An uptime guarantee from a web host basically says “We promise that your website will be online __% of the time during this billing cycle.” The best web hosts will set that guarantee as close to 100% as possible, and that’s exactly what you should be looking for. By having this guarantee in place, you’re assured compensation from your host in the case that there is a server outage or something else takes your site down.
Also known as a Virtual Private Server (VPS), divides server resources into virtual servers, where resources can be allocated in a way that does not directly reflect the underlying hardware. VPS will often be allocated resources based on a one server to many VPSs relationship, however virtualisation may be done for a number of reasons, including the ability to move a VPS container between servers. The users may have root access to their own virtual space. Customers are sometimes responsible for patching and maintaining the server (unmanaged server) or the VPS provider may provide server admin tasks for the customer (managed server).
This is a new type of hosting platform that allows customers powerful, scalable and reliable hosting based on clustered load-balanced servers and utility billing. A cloud hosted website may be more reliable than alternatives since other computers in the cloud can compensate when a single piece of hardware goes down. Also, local power disruptions or even natural disasters are less problematic for cloud hosted sites, as cloud hosting is decentralized. Cloud hosting also allows providers to charge users only for resources consumed by the user, rather than a flat fee for the amount the user expects they will use, or a fixed cost upfront hardware investment. Alternatively, the lack of centralization may give users less control on where their data is located which could be a problem for users with data security or privacy concerns.
Just because a web hosting company looks good in their feature list doesn’t mean they are. Read the reviews in our review section and see which companies are difficult to deal with and which ones are helpful. You will almost certainly run into problems at some point, so pay attention to reviews that recount experiences people have had with customer service.