基于边缘计算的高性能网站图标获取服务
GET /api/favicon?url={域名}
示例: https://getsiteimg.helong.online/api/favicon?url=github.com
<img src="/api/favicon?url=github.com" alt="GitHub Icon" width="32" height="32">const response = await fetch('/api/favicon?url=github.com');
const blob = await response.blob();
const iconUrl = URL.createObjectURL(blob);