Upload your icon;
Favicon37 generates different sizes of your icon, and upload them to a CDN;
Copy the code into your website's <head>, then you get perfect favicons;
You will get something like this:
<link rel="apple-touch-icon" sizes="57x57" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-57.png">
<link rel="apple-touch-icon" sizes="60x60" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-60.png">
<link rel="apple-touch-icon" sizes="72x72" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-72.png">
<link rel="apple-touch-icon" sizes="76x76" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-76.png">
<link rel="apple-touch-icon" sizes="114x114" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-114.png">
<link rel="apple-touch-icon" sizes="120x120" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-120.png">
<link rel="apple-touch-icon" sizes="144x144" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-144.png">
<link rel="apple-touch-icon" sizes="152x152" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-152.png">
<link rel="apple-touch-icon" sizes="180x180" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-180.png">
<link rel="icon" type="image/png" sizes="192x192" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-192.png">
<link rel="icon" type="image/png" sizes="32x32" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-32.png">
<link rel="icon" type="image/png" sizes="96x96" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-96.png">
<link rel="icon" type="image/png" sizes="16x16" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-16.png">
<link rel="manifest" href="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/manifest.json">
<meta name="msapplication-TileColor" content="#CFB53B">
<meta name="msapplication-TileImage" content="https://static.peng37.com/faviconapi/52190fe8-4549-4a16-b25b-3b42954128bc/2bce425b230de26326097fbe1a53b22885d6e8838daae061cfdca836378b7f27/icon-144.png">
<meta name="theme-color" content="#CFB53B">
Pay once, use forever.