Does it matter for SERP, where my site is hosted and whether it's created with the use of a CMS, and if yes, does it matter, what particular CMS was used?
Do hosting company and CMS matter?
seo;web hosting;cms
Yes they both matter.Some CMS are more Search-Engine Optimizable than others, so if we think the amount of work as fixed (as in a fixed-budget project), you can reach higher rank and thus more visibility.In practice this mean that a less SEO-proficient person can be used to keep a site updated, as he will have to handle less parameters, or that the assigned person can spend less times on optimizing new content, concentrating on generating the same new content.Moreover Google use geo-localization of the site and the user, in their search algorithm. So if you are selling apple pies in London, your site will rank higher to the users in the UK if your hosting company will have a server in the UK.There are also the issues of uptime, as a site which is often down will rank lower, and the server IP reputation: if you share the same IP with spammers, e.g. in a shared hosting environment, you can lose all your rank in no time; but these are more trivial issues that good host should be able to take care of.