title: When is a Google Maps API key required?
body: <p>Recently Google changed it's policy on the use API keys. You're now supposed to no longer need an API key to place Google Maps on your website. </p>
  
  <p>And this worked perfectly. But now I have this map (without API key) running on my localhost, which works fine. But as soon as I place it online, I get a popup saying that I need another API key. And on another page on that website, Google Maps does work. Could it maybe have something to do with that the map that doesn't work have a lot (30+) of markers on it?</p>
  
  <p>Actually using an API key wouldn't be a very nice solution to me, as this is part of a Wordpress plugin used on many websites.</p>