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Direct Answer: Google may override the site name you set if it finds a more recognizable or accurate name in your content, domain, or other signals. This article explains the mechanism, the common causes, and how to diagnose and influence Google's choice.
Google doesn't always use the site name you set in your structured data or settings. It may pick a different name from your content, domain, or other signals if it thinks that name is more recognizable or accurate. This is a known behavior, not a bug. Understanding why it happens helps you align your branding signals so Google chooses the name you want.
Google's algorithm evaluates multiple sources to determine your site's name. It looks at your homepage title, your logo, your domain, your content, and even how other sites refer to you. If it finds a name that seems more common or more descriptive, it may use that instead of the one you provided.
This is similar to how Google picks a favicon or a sitelinks search box. It's a judgment call based on what it thinks is best for users.
Google's documentation says it uses the site name from structured data (like WebSite schema) as a strong signal, but it's not the only signal. It also considers: