stackexchange.com favicon

https://stackexchange.com/ · checked November 5, 2026

14passed
2warnings
2missing
5optional

The main favicon of stackexchange.com is favicon.ico, an ICO file with 16, 32, and 48 px images (7.2 KB). We found 3 icon files, 15.3 KB in total. Google Search can use apple-touch-icon.png, a 180×180 PNG file (879 B). The site scores 81 out of 100: 14 passed, 2 warnings, 2 missing. Missing: SVG favicon, Web app manifest.

How it looks

Rendered from the files we found.

Hot Questions - Stack Exchange

Browser tab · lightPassed

Hot Questions - Stack Exchange

Browser tab · darkOptional

Check that the icon stays visible on a dark tab.

stackexchange.comhttps://stackexchange.com

Hot Questions - Stack Exchange Stack Overflow – 180+ community-powered knowledge sites.

Google searchPassed

Hot Questions - Stack Exchange

iOS home screenPassed

512

Android · maskableMissing

There are no manifest icons, so Android falls back to a screenshot or a letter.

splash

PWA install & splashMissing

No 512 px icon in the manifest, so there is no install prompt or splash screen.

All favicon files of stackexchange.com

3 found

File	Found through	Format	Size	Weight
favicon.ico	default path	ICO	16, 32, 48 px	7.2 KB
favicon.ico	rel="icon"	ICO	16, 32, 48 px	7.2 KB
apple-touch-icon.png	rel="apple-touch-icon"	PNG	180×180	879 B

Classic favicon

1 passed · 1 warning

favicon.ico

Warning

GET /favicon.ico · not declared in HTML (found at the root)

Format: ICO (real)
Contains: 16 · 32 · 48
File size: 7.2 KB
HTTP: 302 → 200
Content-Type: image/x-icon
Cache: 7 days

The icon URL redirects, and some crawlers and RSS readers don’t follow redirects for icons. Serve the file at its final URL.

ICO 32×32

Passed

<link rel="icon" sizes="32x32" href="https://cdn.sstatic.net/Sites/stackexchange/Img/favicon.ico">

Declared: 32×32
Actual: 16 · 32 · 48
Format: ICO
File size: 7.2 KB
HTTP: 200
Content-Type: image/x-icon

SVG icon

1 missing

svg

SVG favicon

Missing

<link rel="icon" type="image/svg+xml" href="…"> – not found

An SVG icon stays sharp at any size and can switch colors for dark browser themes.

Apple

1 passed · 1 optional

Apple touch icon

Passed

<link rel="apple-touch-icon" href="https://cdn.sstatic.net/Sites/stackexchange/Img/apple-touch-icon.png">

Declared: no sizes
Actual: 180×180
Recommended: 180×180
Background: opaque
File size: 879 B
HTTP: 200

mask

Safari pinned tab (mask-icon)

Optional

<link rel="mask-icon" href="…" color="…"> – not found

Legacy. Safari 12+ uses the regular favicon, so this is no longer required.

Web app manifest file

1 missing

json

Web app manifest

Missing

<link rel="manifest" href="…"> – not found

Android and installable web apps take their icons, name and colors from the manifest.

Google search

6 passed

Supported file format
PNG · apple-touch-icon.png
Square, at least 8×8 px
180×180
Larger than 48×48 px
180 px
Declared on the homepage
yes
Not blocked by robots.txt
allowed
Stable URL
no redirects

Meta & legacy

4 optional

theme-colorColors the browser UI on mobile.
not set
theme-color for dark modemedia="(prefers-color-scheme: dark)"
not set
msapplication-TileColorWindows tiles, legacy.
not set
browserconfig.xmlWindows tiles, legacy.
not found

Delivery & performance

6 passed · 1 warning

HTTPS for every icon
3 of 3
No mixed content
0 http:// links
No broken links
0 errors
Cache headers
3 of 3 · ≥ 1 day
Total icon weight
15.3 KB
Redirects/favicon.ico → https://cdn.sstatic.net/Sites/stackexchange/Img/favicon.ico
1
Duplicate tags
none

Icon tags found in <head>

<link rel="icon" sizes="32x32" href="https://cdn.sstatic.net/Sites/stackexchange/Img/favicon.ico">
<link rel="apple-touch-icon" href="https://cdn.sstatic.net/Sites/stackexchange/Img/apple-touch-icon.png">

Questions about the stackexchange.com favicon

Where is the stackexchange.com favicon?

The main one is at https://cdn.sstatic.net/Sites/stackexchange/Img/favicon.ico. The default path, https://stackexchange.com/favicon.ico, also returns an icon.

What size is the stackexchange.com favicon?

favicon.ico is 16, 32, 48 px. The largest raster icon on the site is apple-touch-icon.png at 180×180 px.

Can Google Search show the stackexchange.com favicon?

The site meets Google's rules: apple-touch-icon.png is a 180×180 PNG file (879 B) and robots.txt allows it. Google still decides what it shows.

Does stackexchange.com have an Apple touch icon and a maskable icon?

The Apple touch icon is 180×180. There is no readable web app manifest, so there is no maskable icon either.

More favicon reports

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