Why Favicons Matter for SEO (Google Search Results)

In 2019, Google started showing favicons in mobile search results. By 2023, favicons appeared on desktop too. Today, your favicon is a visible part of every Google search listing. Here's why that matters — and how to get it right.

How Favicons Appear in Google Search

In Google search results, your favicon appears:

• Mobile: Next to your site name and URL, above the title link
• Desktop: Next to the breadcrumb/URL below the title

If you don't have a favicon (or it doesn't meet Google's requirements), Google shows a generic gray globe icon instead. This immediately makes your listing look less trustworthy compared to competitors with branded favicons.

The CTR Impact

Click-through rate (CTR) is one of the most important SEO metrics. It measures how often people click your listing after seeing it in search results.

A study by Hostiserver found that websites with a favicon saw CTR improvements of up to 20% compared to those without. Why?

• Visual distinction — Your listing stands out from the wall of text
• Brand recognition — Returning users recognize your icon before reading the title
• Perceived professionalism — A branded icon signals a legitimate, maintained website
• Trust signal — The generic globe icon is often associated with spam or abandoned sites

Google's Technical Requirements

Google has specific requirements for favicons to appear in search results:

Requirement	Details
Size	Multiple of 48px (e.g., 48×48, 96×96, 144×144). Google resizes to 16×16 for display.
Shape	Must be square. Non-square images may be rejected.
URL	Must be crawlable — not blocked by robots.txt.
Stability	URL should not change frequently.
Content	Must represent the website's brand. No offensive, inappropriate, or generic content.
Domain	Must be served from the same domain as the website (or a subdomain).

Common Reasons Google Doesn't Show Your Favicon

1. robots.txt blocking — Check that your favicon file isn't blocked
2. Wrong size — Ensure it's at least 48×48 and a multiple of 48
3. Not square — Google rejects non-square images
4. Low quality — Blurry, pixelated, or generic icons may be ignored
5. Too new — Google takes days to weeks to process new favicons
6. Different domain — Favicon hosted on a CDN with a different domain may not work

How to Check Your Favicon in Google

1. Open Google Search Console
2. Go to URL Inspection
3. Enter your homepage URL
4. Click "Request Indexing" to trigger a re-crawl
5. Wait a few days and check search results for site:yourdomain.com

Favicon SEO Checklist

• Provide a favicon that is 48×48 or larger (multiple of 48)
• Use PNG or ICO format (not SVG — Google may not process it)
• Declare it in your HTML with a <link rel="icon"> tag
• Also place favicon.ico at the root as a fallback
• Don't block it in robots.txt
• Host it on the same domain as your website
• Make it a square, branded image
• Submit your site to Google Search Console and request indexing

Beyond Google: Favicons in Other Contexts

Favicons also appear in:

• Bing search results — Similar to Google's implementation
• Social media previews — Some platforms show favicons in link cards
• Browser history and bookmarks — Helps users find your site again
• Password managers — Show favicons next to saved credentials
• Link aggregators — Sites like Reddit, Hacker News show favicons next to links

Competitive Analysis

Want to see what favicons your competitors use? Mzu favicondl lets you enter any domain and instantly see their favicon in multiple sizes. It's a quick way to audit your competition and ensure your favicon stands out in search results.