Instagram and Optimizing Favicons | Zoompf

“Lesson #1: Don’t forget your favicon.”

But optimizing your website’s favicon goes beyond just making sure you don’t forget it. Below are 5 recommendations for optimizing your favicon, plus two bonus tips, to optimize your website’s favicon.

  1. Make sure it exists.
  2. Make sure it is compatible.
  3. Make sure it is cacheable.
  4. Make sure it is the right size.
  5. Make sure to serve it using compression.

Additionally you can try:

  • Using 4-bit color depth icons.
  • Inlining the favicon using data URIs.