costco.com favicon

https://www.costco.com/ · 1 redirect · checked November 5, 2026

11passed
5warnings
2missing
5optional

The main favicon of costco.com is favicon.ico, an ICO file with 16 px images (1.1 KB). We found 3 icon files, 7.0 KB in total. Google Search can use the same file. The site scores 73 out of 100: 11 passed, 5 warnings, 2 missing. Missing: SVG favicon, Web app manifest.

How it looks

Rendered from the files we found.

Welcome to Costco Wholesale

Browser tab · lightPassed

Welcome to Costco Wholesale

Browser tab · darkPassed

costco.comhttps://www.costco.com

Welcome to Costco Wholesale Shop Costco.com for electronics, computers, furniture, outdoor living, appliances, jewelry and more. Enjoy low warehouse prices on name-brands products delivered to your door

Google searchWarning

Welcome to Costco Wholesale

iOS home screenWarning

iOS upscales 152 → 180 px, so the icon looks blurry on Retina screens. iOS needs a PNG; this is WebP.

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 costco.com

3 found

File	Found through	Format	Size	Weight
favicon.ico	default path	SVG	vector	756 B
favicon.ico	rel="icon"	ICO	16 px	1.1 KB
apple-touch-icon.png	default path	WebP	152×152	5.1 KB

Classic favicon

1 passed · 1 warning

favicon.ico

Warning

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

Format: SVG, not ICO
Contains: 30×30
File size: 756 B
HTTP: 301 → 200
Content-Type: image/svg+xml
Cache: 22 hours

The icon URL redirects, and some crawlers and RSS readers don’t follow redirects for icons. Serve the file at its final URL. This is a SVG file named .ico. Browsers accept it, but older tools expect a real ICO.

ICO

Passed

<link rel="icon" href="/nextGBrowseAssets/favicon.ico">

Declared: no sizes
Actual: 16
Format: ICO
File size: 1.1 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 warning · 1 optional

Apple touch icon

Warning

Not declared · found at /apple-touch-icon.png

Declared: not declared
Actual: 152×152
Recommended: 180×180
Background: not measured
File size: 5.1 KB
HTTP: 200

iOS upscales 152 → 180 px, so the icon looks blurry on Retina screens. iOS needs a PNG; this is WebP.

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

5 passed · 1 warning

Supported file format
ICO · favicon.ico
Square, at least 8×8 px
16×16
Larger than 48×48 pxGoogle recommends more than 48×48 so the icon looks sharp. A declared 96×96 PNG or the 180 px Apple touch icon works.
16 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

5 passed · 2 warnings

HTTPS for every icon
3 of 3
No mixed content
0 http:// links
No broken links
0 errors
Cache headersIcons rarely change; cache them for at least a day.
1 of 3 · ≥ 1 day
Total icon weight
7.0 KB
Redirects/favicon.ico → /wcsstore/CostcoGLOBALSAS/images/favicon.svg
1
Duplicate tags
none

Icon tags found in <head>

<link rel="icon" href="/nextGBrowseAssets/favicon.ico">

Questions about the costco.com favicon

Where is the costco.com favicon?

The main one is at https://www.costco.com/nextGBrowseAssets/favicon.ico. The default path, https://www.costco.com/favicon.ico, also returns an icon.

What size is the costco.com favicon?

favicon.ico is 16 px. The largest raster icon on the site is apple-touch-icon.png at 152×152 px.

Can Google Search show the costco.com favicon?

The site meets Google's rules: favicon.ico is an ICO file with 16 px images (1.1 KB) and robots.txt allows it. Google recommends more than 48×48 px, so a larger icon would look sharper. Google still decides what it shows.

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

The Apple touch icon is 152×152. There is no readable web app manifest, so there is no maskable icon either.

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