Gravatar Checker

Gravatar (Globally Recognized Avatar) is a service that lets people set a profile image tied to their email address. When someone uses that email to sign up for a site that supports Gravatar, their profile image automatically appears. This tool checks if a given email address has a Gravatar and shows you the avatar along with the image URL and MD5 hash you need to use it in your own applications.

How Gravatar works

Gravatar uses an MD5 hash of the email address to look up the avatar. The email is lowercased and trimmed before hashing, then the hash is used to construct a URL like gravatar.com/avatar/{hash}. This means you never need to store or transfer the actual email address to display someone's avatar. Just compute the hash and fetch the image.

Use cases for email marketers

Gravatar data can tell you a lot about your subscribers. Email addresses with Gravatars are more likely to be real people versus disposable or temporary addresses. You can use Gravatar presence as a signal in your email validation workflow. It does not guarantee validity on its own, but combined with MX record checks and disposable email detection, it helps build a clearer picture of subscriber quality.

If you are building subscriber profiles or dashboards, Gravatar provides a free way to show profile images without asking users to upload photos. Many CRMs, comment systems, and email clients already use Gravatar to display subscriber avatars.

For developer-focused use, the Gravatar URL supports size parameters (s=80 for 80x80 pixels), default image fallbacks (d=identicon for generated patterns, d=robohash for robot avatars), and rating filters. Check the Gravatar documentation for the full API reference.