4 ms·

It's definitely not generating an image for each page load. If you refresh the page you get the same image more often than you get a new image.

• Jernik 8y ago
  It looks like there is just throttling on requests, if you request a new one too quickly, it will just give you the same one
• Geee 8y ago
  It's constantly generating new images and serves always the freshest one.