Letsencrypt is a solid-style Icon from Simple Icons set.

The Letsencrypt icon shows a solid padlock with a rounded shackle, keyhole, and radiating rays above it. Drawn in the solid style on a 24px grid, keeping its bold silhouette clear at small sizes. Use it for HTTPS indicators, TLS certificate dashboards, secure website settings, encryption tools, and certificate management. It belongs to Simple Icons free set in the Brand Logos family.