Favicons are cached quite heavily by browsers. So, in addition to a possible caching from a used CDN, you may need to clear the caches on the local browsers as well. Not every customer understands that if the Favicon is displayed correctly in an incognito window, a missing updated icon can only be due to the caches.

On Chrome, this cache file can easily grow up to several hundreds of megabytes, so a regular cleansing doesn’t do any harm.

Depending on the browser type, the Favicons caches can be found in different folders:

Safari

  • Quit Safari.

  • In the Finder, select Go > Go To Folder.

  • Enter ~/Library/Safari/Favicon Cache/ and press Return.

  • Use Select All (Command-A) to select the database and cached items.

  • Drag these to the trash or press Command-Delete.

  • Empty the trash.

  • Launch Safari.

Google Chrome

  • Quit Google Chrome.

  • In the Finder, select Go > Go To Folder.

  • Enter ~/Library/Application Support/Google/Chrome/Default/Favicons and press Return.

  • Use Select All (Command-A) to select the database and cached items.

  • Drag these to the trash or press Command-Delete.

  • Empty the trash.

  • Launch Google Chrome.