diff --git a/config.ts b/config.ts
index 5a151cc..f4f8aed 100644
--- a/config.ts
+++ b/config.ts
@@ -10,11 +10,10 @@ let staticUsers;
 try {
   const yamlContent = await Deno.readTextFile(`${dirname}/users.yaml`);
   staticUsers = parse(yamlContent);
-  log("Static user config:", "blue");
-  log(Deno.inspect(staticUsers), "blue");
+  log(`Serving content for ${Object.keys(staticUsers).length} pubkeys from users.yaml`, "blue");
 } catch {
   staticUsers = {};
-  log(`Could not find or parse a "users.yaml" config`, "yellow");
+  log(`Could not find or parse a users.yaml config`, "yellow");
 }
 
 const relay_urls = Deno.env.get("RELAY_URLS")?.split(",");
@@ -33,6 +32,22 @@ const config = {
   },
 };
 
-log(`LDAP enabled: ${config.ldapEnabled}`, "blue");
+if (config.ldapEnabled && config.ldap.url) {
+  log(`Serving content for pubkeys from ${config.ldap.url}`, "blue");
+} else {
+  log(`LDAP not enabled`, "blue");
+}
+
+if (Object.keys(staticUsers).length === 0 && !config.ldapEnabled) {
+  log(`Neither static users nor LDAP configured. Nothing to serve.`);
+  Deno.exit(1);
+}
+
+if (config.relay_urls?.length > 0) {
+  log(`Relays: ${config.relay_urls.join(", ")}`, "green");
+} else {
+  log(`No relays configured. Please add at least one relay to RELAY_URLS.`);
+  Deno.exit(1);
+}
 
 export default config;