diff --git a/src/dom_tokenizers/pre_tokenizers/splitter.py b/src/dom_tokenizers/pre_tokenizers/splitter.py
index f9c821b..0de000a 100644
--- a/src/dom_tokenizers/pre_tokenizers/splitter.py
+++ b/src/dom_tokenizers/pre_tokenizers/splitter.py
@@ -471,15 +471,23 @@ def _split_base64_utf8(self, text, encoded):
 
     def _split_base64_binary(self, data, encoded):
         if len(encoded) < 9:  # XXX review
-            return None
+            return None  # too short
         filetype = sniff_bytes(data)
         if filetype:
             return [self.base64_token, filetype.name.lower()]
+        if len(encoded) > 100:  # XXX review
+            return [self.base64_token, "data"]  # too long
+        hist = defaultdict(int)
+        for c in encoded:
+            hist[c] += 1
+        xoxo = list(sorted((count, c) for c, count in hist.items()))
+        print(encoded)
+        print(len(encoded), len(hist), xoxo[-2:])
+        #print(xoxo)
         #with open("unsniffed.matches", "a") as fp:
         #    print(len(encoded), encoded, file=fp)
         #if self.oracle.is_texty(encoded):
         #    return None
-        return [self.base64_token, "data"]
         raise NotImplementedError(encoded)
 
     # XXX junk?
@@ -598,16 +606,15 @@ def _postprocess(self, tokens: Iterable[str]) -> Iterable[str]:
             # terminal-quotes.
             token = token.rstrip("'")
 
-            if self.HEX_RE.match(token):
-                yield self.long_token
-                try:
-                    _ = int(token)
-                except ValueError:
-                    yield "hex"
-                yield "digits"
+            if len(token) <= 6:
+                yield token  # 6 hex == CSS color
+                continue
+
+            if self.ALL_HEX_RE.match(token):
+                yield "[COOKIE]"  # hex _or_ decimal
                 continue
 
-            if len(token) <= self.MAXWORDLEN:
+            if len(token) <= 100:  # self.MAXWORDLEN:
                 yield token
                 continue