There are many static websites on the Internet, you may not be able to tell immediately if it is a static or dynamic website, but the chances are, if the site looks basic and is for a smaller company, and simply delivers information without any bells and whistles, it could be a static website.
Static websites can only really be updated by someone with knowledge of website development. Static websites are the cheapest to develop and host, and many smaller companies still use these to get a web presence. At Anvesna Systems, we can advise or help to develop both static and dynamic websites.