Allow raw ip addresses

config.example.yaml

@@ -45,6 +45,8 @@ endpoints:
     # DNS server used to resolve `host` for THIS endpoint. The
     # system/router-provided DNS resolver is never used — every lookup
     # goes explicitly to this server only.
+    # Required unless `host` is already a literal IP address (see the
+    # entry below), in which case it's optional and ignored.
     dns_server: "1.1.1.1"
     expected_status: 200
     # path: "/"                  # optional, defaults to "/"
@@ -58,4 +60,11 @@ endpoints:
     dns_server: "9.9.9.9"
     expected_status: 200
 
+  - name: "example-raw-ip"
+    host: "192.168.0.2"          # literal IP -> DNS resolution is skipped entirely
+    scheme: "http"
+    port: 8080
+    # dns_server not needed here
+    expected_status: 200
+
   # Add as many endpoints as you like below.