Should a site logo be used as a Discover article image?

Definition: A site logo is a generic brand image rather than an image that represents one article. Google's guidance for the Discover feed says the preferred article image should be relevant and representative, and gives a site logo as an example of a generic image to avoid in schema.org or og:image metadata.

Key facts

• Google's Discover documentation recommends relevant, high quality images for content in the feed, with particular attention to large images.
• The same guidance specifies at least 1200 px in width, more than 300,000 total pixels, a 16x9 aspect ratio, and the max-image-preview:large setting or AMP for its image recommendations.
• Google says schema.org markup or the og:image meta tag can influence which image becomes the thumbnail, and gives a site logo as an example of a generic image to avoid.
• Google's image SEO documentation says image preview selection is completely automated and considers multiple sources on a page.
• The image guidance recommends choosing a relevant, representative image, avoiding generic or text-heavy images, avoiding extreme aspect ratios, and using high resolution if possible.

Why is a site logo a poor article thumbnail?

Google's Discover guidance recommends an image that is relevant and representative, then names a site logo as an example of a generic image to avoid in the metadata used to suggest the thumbnail. The documented recommendation therefore favors an article image that represents the page rather than the generic logo example.

The same guidance also says to avoid text-heavy images in the schema.org markup or og:image meta tag. The page separately recommends avoiding misleading or exaggerated details in preview content, including images.

Which image metadata can suggest the thumbnail?

Google's image SEO guidance says its selection of an image preview is automated and uses several sources. It says a site owner can provide a preferred image through metadata, including the schema.org primaryImageOfPage property or an og:image meta tag. The guidance applies the same selection principles to both: the image should be relevant and representative, while generic images, images with text, and extreme aspect ratios should be avoided.

The documented Open Graph form is:

<meta property="og:image" content="https://example.com/images/cat.png">

The source also shows primaryImageOfPage with either a URL or an ImageObject. Google presents both forms as ways to provide a preferred image, alongside its requirement that the image be relevant and representative.

What image should a site prepare for the feed?

The feed documentation recommends a compelling, high quality image that is relevant to the page. It lists at least 1200 px in width, more than 300,000 total pixels, and a 16x9 aspect ratio. Google says it may crop the image automatically, and advises that a manually cropped image should keep important details in the version specified in og:image.

The image should also be enabled for a large preview through max-image-preview:large or AMP. The documented metadata choices are schema.org markup and og:image, but the content test remains the same: use an image that represents the article and avoid a generic logo or a text-heavy graphic.

Related terms

• Which image sizes and aspect ratios does Google recommend for articles?
• Article structured data
• Image alternative text

FAQ

Can a logo still appear in the page header?

Yes. The documented image advice targets the image supplied as the preferred article image in schema.org or og:image metadata. It does not address a logo used as site branding in the page header.

Is any text in an article image disallowed?

Google advises avoiding text-heavy images in the relevant metadata. Its wording applies to images specified in schema.org or og:image.

Are special tags required for eligibility?

No. Google's feed documentation says content is automatically eligible when it is indexed and meets the feed's content policies, and that no special tags or structured data are required.

Sources

1. Google Search Central, "Get on Discover", 9 March 2026
2. Google Search Central, "Google image SEO best practices", 2 March 2026

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