Refactor monolith utils into domain modules and update docs

data/whois_cache.json

@@ -863,5 +863,6 @@
   "145.132.103.19": "145.132.0.0/15",
   "209.99.190.99": "209.99.184.0/21",
   "20.104.18.253": "20.64.0.0/10",
-  "178.128.176.132": "178.128.176.0/20"
+  "178.128.176.132": "178.128.176.0/20",
+  "81.171.74.60": "81.171.74.0/24"
 }