What is mail.google.com in analytics? Gmail on the web

What it is

The web version of Gmail. gmail.com redirects to mail.google.com.

Why there's no full URL

Browsers share only the origin with other sites by default, so the URL of the email isn't sent. That also keeps message IDs private.

What traffic it represents

Someone clicked a link to your site in an email they read in Gmail in a web browser. Clicks in the Gmail Android app show up as android-app://com.google.android.gm instead.

Sources

location: https://mail.google.com/mail/u/0/
gmail.com redirect (checked 2026-10-06)

For cross-origin requests send the origin (only) when the protocol security level stays same (HTTPS→HTTPS).
Referrer-Policy header - MDN

With this policy, only the origin is sent in the Referer header of cross-origin requests.
A new default Referrer-Policy for Chrome: strict-origin-when-cross-origin

Related referrers

android-app://com.google.android.gm Gmail app on Android
safelinks.protection.outlook.com Microsoft Safe Links (Outlook)

All referrers explained

Referrers, grouped by how people arrived

Vireo Analytics groups your referrers by how people arrived, counts AI assistants as their own source, and joins Search Console so you see the searches behind each post. Free on WordPress.org.

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