How to install favicon-generator
npx skills add https://github.com/kostja94/marketing-skills --skill favicon-generatorFull instructions (SKILL.md)
Source of truth, from kostja94/marketing-skills.
name: favicon-generator description: When the user wants to implement, optimize, or audit favicon and app icons. Also use when the user mentions "favicon," "app icon," "browser icon," "touch icon," "PWA icon," "favicon sizes," "apple-touch-icon," "favicon.ico," "site icon," or "tab icon." For visual system, use brand-visual-generator. metadata: version: 1.0.1
Components: Favicon
Guides favicon and app icon implementation for brand consistency across browser tabs, bookmarks, mobile home screens, and Google Search results. Favicons help users identify sites; missing or incorrect icons hurt trust.
When invoking: On first use, if helpful, open with 1-2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Initial Assessment
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for brand and visual identity.
Identify:
- Tech stack: Next.js, WordPress, static HTML, etc.
- PWA: Is the site a PWA or planning to be?
- Existing assets: Logo, icon files
Required Sizes
| Size | Use |
|---|---|
| 16x16 | Browser tabs, standard displays |
| 32x32 | Retina/HiDPI browser tabs |
| 180x180 | Apple Touch Icon (iOS home screen); no transparency |
| 192x192 | Android Chrome home screen, PWA launcher |
| 512x512 | PWA splash screens, adaptive icons |
Optional: 48x48, 96x96, 120x120, 152x152, 167x167, 256x256 for broader coverage.
Formats
| Format | Use |
|---|---|
| SVG | Modern browsers; scalable; supports dark mode via media queries; lightweight |
| PNG | High-DPI; explicit sizes; easy to generate; required for Apple Touch Icon |
| ICO | Legacy; bundles multiple sizes; fallback for older browsers |
Recommended: Provide SVG + PNG fallbacks. Never skip Apple Touch Icon (180x180); iOS shows a generic screenshot without it.
Google Search (SERP Display)
See serp-features for SERP feature types and optimization.
Favicons can appear in Google Search results next to your site's listings. Google Search Central requirements:
| Requirement | Guideline |
|---|---|
| Placement | Add <link rel="icon" href="/path/to/favicon.ico"> to homepage header |
| One per hostname | One favicon per hostname; example.com and code.example.com are separate; example.com/sub-site shares the same favicon |
| Crawlability | Googlebot-Image must crawl favicon; Googlebot must crawl homepage; do not block either in robots.txt |
| Shape | Square (1:1 aspect ratio); minimum 8x8px; preferably >48x48px for quality across platforms |
| Stable URL | Do not change favicon URL frequently |
| Appropriate | No inappropriate content (pornography, hate symbols); Google may replace with default icon |
| Timing | Crawling can take days to weeks; use Search Console URL Inspection to request indexing |
Supported rel values: icon, shortcut icon, apple-touch-icon, apple-touch-icon-precomposed. href can be relative (/favicon.ico) or absolute; favicon can be hosted on CDN.
Implementation
HTML Link Tags
<link rel="icon" href="/favicon.ico" sizes="any">
<link rel="icon" href="/icon.svg" type="image/svg+xml">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32.png">
<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
Next.js
Place in /app: favicon.ico, icon.png, apple-icon.png. Next.js auto-generates tags.
PWA Manifest
Include icons array in manifest.json with 192x192 and 512x512 for maskable icons.
Best Practices
- Simplicity: At 16x16, complex details are illegible; use simplified logo mark; design for brand recognition in SERPs
- Consistency: Favicon should match logo/brand (logo-generator, brand-visual-generator)
- Cache: Use long cache; version for updates (e.g.
/favicon.ico?v=2) - Tools: RealFaviconGenerator, favicon.io, or favicons npm package for automation
- Test: Check across browsers, dark mode, and Search Console (favicon may take days to weeks to appear)
Output Format
- Size checklist (16, 32, 180, 192, 512; >48x48 for Google Search)
- Format recommendations (SVG, PNG, ICO)
- Implementation notes per tech stack (homepage header placement)
- Google Search checklist (crawlability, stable URL, appropriate content)
- Manifest (if PWA)
Related Skills
- logo-generator: Favicon typically derived from logo; consistent branding
- media-kit-page-generator: Media kit should include favicon or link to brand assets
- brand-visual-generator: Visual identity; favicon aligns with brand colors and mark
- indexing: Favicon requires crawlable homepage; URL Inspection for indexing
Related skills
More from kostja94/marketing-skills and the wider catalog.
copywriting
When the user wants to write or optimize short-form marketing copy—headlines, CTAs, ad copy, landing page copy, email copy. Also use when the user mentions "copywriting," "headline," "CTA copy," "ad copy," "landing page copy," "sales copy," "conversion copy," "PAS," "AIDA," "BAB," "copy formula," or "differentiation." For long-form article bodies (blog posts, guides), use article-content.
linkedin-posts
When the user wants to create LinkedIn post copy or optimize for LinkedIn. Also use when the user mentions "LinkedIn post," "LinkedIn article," "professional post," "post to LinkedIn," "LinkedIn content," "LinkedIn copy," "B2B LinkedIn," "LinkedIn engagement," "LinkedIn feed," "share box," "document post," "poll," "Newsletter," "reshare," or "LinkedIn marketing." For LinkedIn ads, use linkedin-ads.
youtube-seo
When the user wants to optimize YouTube videos for search, create video descriptions, or improve channel visibility. Also use when the user mentions "YouTube SEO," "YouTube description," "YouTube tags," "YouTube thumbnail," "YouTube title," "YouTube channel," or "video SEO." For YouTube ads, use youtube-ads.
tiktok-captions
When the user wants to create TikTok video captions, scripts, or optimize for TikTok. Also use when the user mentions "TikTok post," "TikTok caption," "TikTok video," "post to TikTok," "TikTok script," "TikTok content," "TikTok copy," "TikTok hashtags," or "TikTok marketing." For TikTok ads, use tiktok-ads.
video-marketing
When the user wants to plan video marketing, create video scripts, or optimize for short-form or long-form video. Also use when the user mentions "video marketing," "video script," "short-form video," "long-form video," "TikTok script," "Reels script," "YouTube script," "video hook," or "video content strategy." For on-site video SEO, use video-optimization.
meta-ads
When the user wants to set up, optimize, or manage Meta (Facebook/Instagram) Ads. Also use when the user mentions "Meta Ads," "Facebook Ads," "Instagram Ads," "Meta Pixel," "Conversions API," "Advantage+," "lookalike audience," or "Meta retargeting." For landing pages, use landing-page-generator.