diff --git a/Blogs-and-tutorials.md b/Blogs-and-tutorials.md
index 4319acc..701d3bb 100644
--- a/Blogs-and-tutorials.md
+++ b/Blogs-and-tutorials.md
@@ -96,6 +96,7 @@ Here are some blogs that may help you:
 1. [Install a SSL reverse proxy on an Asus Router with OVH domain](https://github.com/pedrom34/TutoAsus/)
 1. [How to use the Edgenexus Cert manager to deploy ACME certs](https://www.edgenexus.io/docs/guides/app-user-guides/Edgnexus%20EdgeCert%20Manager/EN/html/get_and_install_the_edgenexus_ssl_certificate_manager_.htm)
 1. [acme.sh with HAProxy integration](https://github.com/haproxy/wiki/wiki/Letsencrypt-integration-with-HAProxy-and-acme.sh)
+1. [Trusted TLS certificates for internal use](https://blog.mni.li/posts/internal-tls-with-caddy/)
 
 ## French
 1. https://notes.ailothaen.fr/post/2017/01/Mise-en-place-de-HTTPS-sur-Apache-avec-Let-s-Encrypt