diff --git a/README.md b/README.md
index 5c5e761..f817827 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,10 @@ will create the symbolic link for each script in the \<path> directory.
 - [mem](scripts/mem) stores the shorts notes in the file.
 - [pomodoro](scripts/pomodoro) tracks the working time.
 
+## Network
+
+- [check-cert](scripts/check-cert) retrieves information about web site's TLS certificate.
+
 ## WWW
 
 - [bor](scripts/bor) displays the latest posts from [bash.im](https://bash.im) website.
diff --git a/scripts/check-cert b/scripts/check-cert
new file mode 100755
index 0000000..c316943
--- /dev/null
+++ b/scripts/check-cert
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+DOMAIN=${1:?USAGE: check-cert [domain name]}
+
+echo |  { openssl s_client -connect "${DOMAIN}:443" \
+	| openssl x509 -noout -dates;
+} 2>&1 | sed -E '/verify|DONE/d; s/^depth=[0-9]+[[:space:]]+//'
+