Como adicionar um favicon em HTML
Três tags cobrem 99 % dos casos. Mais duas completam um setup de nível PWA.
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A tag mínima
<link rel="icon" href="/favicon.ico"> — só isso. Todo navegador vai buscá-la.
O conjunto moderno recomendado
Adicione SVG e apple-touch-icon para renderização nítida em todas as plataformas:
<link rel="icon" href="/favicon.ico">
<link rel="icon" type="image/svg+xml" href="/favicon.svg">
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
Prompts de instalação PWA
Adicione um manifest.json com entradas 192×192 e 512×512 em PNG e vincule <link rel="manifest" href="/site.webmanifest">.
Perguntas frequentes
What is the minimum HTML tag for a favicon?
Add <link rel="icon" href="/favicon.ico"> inside <head>. Place favicon.ico at your site root and every browser will find it.
Do I need separate tags for PNG and SVG favicons?
Yes for a modern setup. Link favicon.ico as the fallback, then add <link rel="icon" type="image/png"> and optionally type="image/svg+xml" for sharper rendering.
Where should favicon <link> tags go in HTML?
Inside the <head> element, before </head>. Order among icon links does not matter.
Do I need a web manifest for favicons?
Not for basic tabs, but add <link rel="manifest"> plus 192×192 and 512×512 PNG icons if you want PWA install prompts.