Questions, bug reports, or anything else about using Wall of Certificates: contact@wocerts.link.
To flag a specific certificate for review, use the report link on that certificate's page — it reaches our moderation queue directly and doesn't require email. For anything urgent, or a copyright claim specifically, see our DMCA page.
We aim to respond to support requests within a few days, and to policy or takedown reports within 48 hours per our content policy.