Head of Let&#x27;s Encrypt here.<p>We considered introducing a site seal because it&#x27;s a common request but we&#x27;ve decided not to do it (at least for now) for reasons similar to many in this post.<p>It&#x27;s hard to design a seal that accurately conveys the value added to a site&#x27;s security by a CA, and the potential for abuse is high. A CA seal either means nothing or implies too much because having a cert from a trusted provider is just one part of what it means to be a secure website.