diff --git a/src/gluri/internal/parser.gleam b/src/gluri/internal/parser.gleam
index ab53448..253b2df 100644
--- a/src/gluri/internal/parser.gleam
+++ b/src/gluri/internal/parser.gleam
@@ -168,7 +168,7 @@ fn parse_authority(str: String) -> Result(#(Uri, String), Nil) {
 }
 
 fn parse_authority_part(str: String) -> Result(#(Uri, String), Nil) {
-  let #(userinfo, rest) = parse_userinfo(str, "")
+  let #(userinfo, rest) = parse_userinfo(str)
 
   use #(host, rest) <- result.try(parse_host(rest))
 
@@ -180,8 +180,12 @@ fn parse_authority_part(str: String) -> Result(#(Uri, String), Nil) {
 }
 
 // userinfo      = *( unreserved / pct-encoded / sub-delims / ":" )
-fn parse_userinfo(str: String, userinfo: String) -> #(Option(String), String) {
+fn parse_userinfo(str: String) -> #(Option(String), String) {
   use <- bool.guard(when: !string.contains(str, "@"), return: #(None, str))
+  do_parse_userinfo(str, "")
+}
+
+fn do_parse_userinfo(str: String, userinfo: String) -> #(Option(String), String) {
   case str {
     "@" <> rest -> #(Some(userinfo), rest)
     "" -> #(None, userinfo <> str)
@@ -202,7 +206,7 @@ fn parse_userinfo(str: String, userinfo: String) -> #(Option(String), String) {
           str,
         )
       {
-        Ok(#(part, rest)) -> parse_userinfo(rest, userinfo <> part)
+        Ok(#(part, rest)) -> do_parse_userinfo(rest, userinfo <> part)
         Error(_) -> #(None, userinfo <> str)
       }
     }
@@ -421,7 +425,7 @@ fn parse_ipv4address(str: String) {
 //              / "1" 2DIGIT            ; 100-199
 //              / "2" %x30-34 DIGIT     ; 200-249
 //              / "25" %x30-35          ; 250-255
-pub fn parse_dec_octet(str: String) -> Result(#(String, String), Nil) {
+fn parse_dec_octet(str: String) -> Result(#(String, String), Nil) {
   try_parsers(
     [
       parse_this_then(_, [
@@ -486,7 +490,7 @@ pub fn parse_dec_octet(str: String) -> Result(#(String, String), Nil) {
 }
 
 // reg-name      = *( unreserved / pct-encoded / sub-delims )
-pub fn parse_reg_name(str: String) {
+fn parse_reg_name(str: String) {
   // can't error
 
   case do_parse_reg_name(str, "") {
diff --git a/test/benchmark.gleam b/test/benchmark.gleam
index 7b6ac06..de54e39 100644
--- a/test/benchmark.gleam
+++ b/test/benchmark.gleam
@@ -1,6 +1,5 @@
 import gleam/uri as uri2
 import gluri as uri
-import gluri/internal/parser
 import glychee/benchmark
 import glychee/configuration
 
@@ -15,43 +14,43 @@ pub fn main() {
   // ip_benchmark()
 }
 
-@target(erlang)
-pub fn ip_benchmark() {
-  benchmark.run(
-    [
-      benchmark.Function("ip_benchmark", fn(data) {
-        fn() {
-          let _ = parser.parse_dec_octet(data)
-          Nil
-        }
-      }),
-    ],
-    [
-      benchmark.Data("173", "173"),
-      benchmark.Data("5", "5"),
-      benchmark.Data("200", "200"),
-      benchmark.Data("255", "255"),
-      benchmark.Data("fail", "2b"),
-    ],
-  )
-}
+// @target(erlang)
+// pub fn ip_benchmark() {
+//   benchmark.run(
+//     [
+//       benchmark.Function("ip_benchmark", fn(data) {
+//         fn() {
+//           let _ = parser.parse_dec_octet(data)
+//           Nil
+//         }
+//       }),
+//     ],
+//     [
+//       benchmark.Data("173", "173"),
+//       benchmark.Data("5", "5"),
+//       benchmark.Data("200", "200"),
+//       benchmark.Data("255", "255"),
+//       benchmark.Data("fail", "2b"),
+//     ],
+//   )
+// }
 
-@target(erlang)
-pub fn reg_name_benchmark() {
-  benchmark.run(
-    [
-      benchmark.Function("reg_name_benchmark", fn(data) {
-        fn() {
-          let _ = parser.parse_reg_name(data)
-          Nil
-        }
-      }),
-    ],
-    [
-      benchmark.Data("long", "github.com"),
-    ],
-  )
-}
+// @target(erlang)
+// pub fn reg_name_benchmark() {
+//   benchmark.run(
+//     [
+//       benchmark.Function("reg_name_benchmark", fn(data) {
+//         fn() {
+//           let _ = parser.parse_reg_name(data)
+//           Nil
+//         }
+//       }),
+//     ],
+//     [
+//       benchmark.Data("long", "github.com"),
+//     ],
+//   )
+// }
 
 @target(erlang)
 pub fn parse_benchmark() {
@@ -75,6 +74,10 @@ pub fn parse_benchmark() {
         "long",
         "https://github.com/gleam-lang/stdlib/issues/523#issuecomment-3288230480",
       ),
+      benchmark.Data(
+        "with user",
+        "https://test_name:user%20$$$@github.com/gleam-lang/stdlib/issues/523#issuecomment-3288230480",
+      ),
       benchmark.Data("ipv4", "https://192.255.36.4/"),
     ],
   )