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-Welcome to the acme4j wiki!
+_acme4j_ is used by...
+
+## Open Source Projects
+
+* [danielsz/certificaat](https://github.com/danielsz/certificaat): General-purpose ACME client 
+* [yankee42/acme4j-manager](https://github.com/yankee42/acme4j-manager): A configurable manager app for ACME based SSL-certificates
+
+## Commercial Use
+
+* [midpoints GmbH](https://www.midpoints.de/de-solutions-LE4D): Let's Encrypt certificates for IBM Domino servers
+
+## Certificate Authorities
+
+* [Let's Encrypt](https://letsencrypt.org) (built-in support)
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