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Favicon

使用 curl 检测网站是否含 favicon(/favicon.ico、页面 link 标签、apple-touch-icon),支持下载图标文件、用 1-2 个字符生成 SVG 占位图标,以及查看图标文件的大小、MIME 类型和格式。

bytesagain
bytesagain
热度 48.60
最近更新 2026-03-27 14:47:46
分类:创作依赖:代码执行 / 第三方 API / 读写文件应用场景:品牌素材 / 图像生成

安装技能

复制下面的话术发给你的 Agent,它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill: npx secure-skills-cli add favicon
Metadata
name
Favicon
description
Fetch and download favicons from any website for your design projects. Use when grabbing icons, checking availability, or previewing favicon renders.
version
3.0.0
author
BytesAgain
homepage
https://bytesagain.com
source
https://github.com/bytesagain/ai-skills
tags
["favicon","icon","website","image","web","html","branding","developer"]
categories
["Developer Tools","Utility"]

Favicon — Favicon Tool

Check, download, and generate favicons. Detects favicons via /favicon.ico, HTML <link> tags, and apple-touch-icon. Can generate SVG placeholder favicons from text.

Commands

Command Description
check <url> Check if a website has a favicon (tries /favicon.ico, HTML link tags, apple-touch-icon)
download <url> [output] Download a site's favicon (tries direct, HTML parsing, Google API fallback)
generate <text> [size] Generate an SVG favicon placeholder with text (1-2 chars, random background)
info <file> Show image file info — size, MIME type, format (ICO/PNG/JPEG/GIF/SVG/WebP)

Examples

# Check if a site has a favicon
favicon check https://github.com
# → ✓ /favicon.ico — 200
# → ✓ apple-touch-icon found

# Download a favicon
favicon download https://google.com google-icon.ico

# Generate an SVG placeholder
favicon generate "AB" 64
# → Creates AB-favicon.svg with random background color

# Get info about a favicon file
favicon info favicon.ico
# → Size, MIME type, format (detected from magic bytes)

Detection Methods

  1. Direct: Checks <url>/favicon.ico
  2. HTML Parsing: Looks for <link rel="icon"> and <link rel="shortcut icon"> in page HTML
  3. Apple Touch Icon: Checks for <link rel="apple-touch-icon">
  4. Google API (download only): Falls back to google.com/s2/favicons API

Requirements

  • curl — for HTTP requests
  • file (optional) — for MIME type detection in info command
  • xxd (optional) — for magic byte detection in info command