Mordecai pointed me at Google Analytics. Establish an account, insert a little blurb at the end of your web page(s), and it will keep track of a wide variety of information. A lot of it only makes sense if you're using Google Ads (which I occasionally contemplate, if only to see what on earth it would come up with to advertise!), but I like it because it provides evidence that yes, people actually read what I write. :)
One thing I have found out is that almost 44% of the visits here since I turned on the tracking are done with some version of Internet Explorer. If you use Internet Explorer, I'd like to take this opportunity to urge you to switch to Firefox. Do it for your own computing safety.