diff --git a/config.ini.sample b/config.ini.sample
index 0b23d50..919a0ad 100644
--- a/config.ini.sample
+++ b/config.ini.sample
@@ -18,12 +18,12 @@ profiling = 0
 # Database file for proxy storage
 database = proxies.sqlite
 
-# Check type: judges (recommended), ssl, irc, or head
+# Check type(s): judges, ssl, irc, head (comma-separated for random selection)
 #   judges  - HTTP judge servers that echo back request headers
 #   ssl     - TLS handshake test (fast, no payload, verifies MITM)
 #   irc     - IRC server connection test
 #   head    - HTTP HEAD request test
-checktype = judges
+checktype = judges,head
 
 # SSL verification mode (1=always, 0=never, 2=random)
 #   When enabled, tests TLS handshake with certificate verification.