diff --git a/respodns/util.py b/respodns/util.py
index f41ef1f..afff64e 100644
--- a/respodns/util.py
+++ b/respodns/util.py
@@ -14,17 +14,24 @@ def right_now():
     return datetime.now(timezone.utc)
 
 
-def nonsense_consistent(domain):
+def nonsense_consistent(domain, weekly=True):
+    from datetime import datetime, timezone
     from random import Random
     from string import ascii_lowercase
     from zlib import crc32
-    rng = Random(crc32(domain.encode("utf-8")))
+    if weekly:
+        week = datetime.now(timezone.utc).isocalendar().week
+        week_bytes = bytes((week, week, week, week))
+        seed = crc32(week_bytes + domain.encode("utf-8"))
+    else:
+        seed = crc32(domain.encode("utf-8"))
+    rng = Random(seed)
     length = rng.choices((9, 10, 11, 12), (4, 5, 3, 2))[0]
     return "".join(rng.choice(ascii_lowercase) for i in range(length))
 
 
-def concat_nonsense(domain):
-    return nonsense_consistent(domain) + "." + domain
+def concat_nonsense(domain, weekly=True):
+    return nonsense_consistent(domain, weekly=weekly) + "." + domain
 
 
 def head(n, it):