A CMC is a lower-tier BIMI certificate introduced in 2024 for brands without a registered trademark. Eligibility requires 12 months of prior logo use or a government-issued mark. Gmail displays the logo but not the blue checkmark.
Which providers accept CMC?
Gmail accepts CMC as of 2024. Apple accepts VMC and CMC. Yahoo does not require a certificate.
Can I upgrade from CMC to VMC?
Yes, once the trademark registers. Reissue the certificate and update the a= tag.
Why does Common Mark Certificates (CMC) matter for deliverability?
It opens BIMI in Gmail to small businesses and new brands that cannot afford or have not completed trademark registration.
What is the first step to get started with Common Mark Certificates (CMC)?
Document at least 12 months of logo use (Wayback Machine snapshots, marketing materials).
What is the most common Common Mark Certificates (CMC) mistake?
Expecting the blue checkmark; CMC does not qualify.