title: Google Maps API keys proper usage
body: <p>With the recent changes in Google Maps API key requirements, i am wondering on what is the proper way of implementing this.</p>
  
  <p>We are a web agency with a lot of clients and most if not all use Google Maps. We use Wordpress platform for our websites.</p>
  
  <p>So i decided to create a separate project for each client and create 1 key per project and all seemed fine. Now after about 10 projects, i am getting a notice that in order to increase limit i need to make a request and that contains a form with various data.</p>
  
  <p>My questions are:</p>
  
  <ol>
  <li><p>How many API keys i am allowed per project? Can i create batches for my clients; i.e. GROUP 1 project which contains 50 API keys for 50 different sites. Is this considered OK? if not how can i do this? I have done something similar in Google ReCaptcha, because it had a limit that blocked you viewing all your keys.</p></li>
  <li><p>Should i create one project with one key, and then use that key in all of the websites which i would list them as allowed referrer urls?</p></li>
  </ol>
  
  <p>If anyone can elaborate on how i can achieve this in the most appropriate way it would be great.</p>
  
  <p>PS: The format of the URL under referrer is also causing me another headache. Some sites are fine with <em>.domain.com/</em> , others require <a href="http://domain.com" rel="nofollow">http://domain.com</a>. Is this normal? and if so why? Shouldn't the first option cover every other option? Is this due to DNS entries missing or misconfigured?</p>
  
  <p>Thank you in advance.</p>