diff --git a/deps/ada/ada.cpp b/deps/ada/ada.cpp
index 35f83eae9af00f..ad7a1a74cb4db0 100644
--- a/deps/ada/ada.cpp
+++ b/deps/ada/ada.cpp
@@ -1,4 +1,4 @@
-/* auto-generated on 2023-08-26 17:38:28 -0400. Do not edit! */
+/* auto-generated on 2023-08-30 11:44:21 -0400. Do not edit! */
 /* begin file src/ada.cpp */
 #include "ada.h"
 /* begin file src/checkers.cpp */
@@ -116,10 +116,11 @@ ada_really_inline constexpr bool verify_dns_length(
 
 ADA_PUSH_DISABLE_ALL_WARNINGS
 /* begin file src/ada_idna.cpp */
-/* auto-generated on 2023-05-07 19:12:14 -0400. Do not edit! */
+/* auto-generated on 2023-08-29 15:28:19 -0400. Do not edit! */
 /* begin file src/idna.cpp */
 /* begin file src/unicode_transcoding.cpp */
 
+#include <algorithm>
 #include <cstdint>
 #include <cstring>
 
@@ -226,38 +227,22 @@ size_t utf8_length_from_utf32(const char32_t* buf, size_t len) {
   // We are not BOM aware.
   const uint32_t* p = reinterpret_cast<const uint32_t*>(buf);
   size_t counter{0};
-  for (size_t i = 0; i < len; i++) {
-    /** ASCII **/
-    if (p[i] <= 0x7F) {
-      counter++;
-    }
-    /** two-byte **/
-    else if (p[i] <= 0x7FF) {
-      counter += 2;
-    }
-    /** three-byte **/
-    else if (p[i] <= 0xFFFF) {
-      counter += 3;
-    }
-    /** four-bytes **/
-    else {
-      counter += 4;
-    }
+  for (size_t i = 0; i != len; ++i) {
+    ++counter;                                      // ASCII
+    counter += static_cast<size_t>(p[i] > 0x7F);    // two-byte
+    counter += static_cast<size_t>(p[i] > 0x7FF);   // three-byte
+    counter += static_cast<size_t>(p[i] > 0xFFFF);  // four-bytes
   }
   return counter;
 }
 
 size_t utf32_length_from_utf8(const char* buf, size_t len) {
   const int8_t* p = reinterpret_cast<const int8_t*>(buf);
-  size_t counter{0};
-  for (size_t i = 0; i < len; i++) {
+  return std::count_if(p, std::next(p, len), [](int8_t c) {
     // -65 is 0b10111111, anything larger in two-complement's
     // should start a new code point.
-    if (p[i] > -65) {
-      counter++;
-    }
-  }
-  return counter;
+    return c > -65;
+  });
 }
 
 size_t utf32_to_utf8(const char32_t* buf, size_t len, char* utf8_output) {
@@ -9525,14 +9510,14 @@ bool constexpr begins_with(std::u32string_view view,
   if (view.size() < prefix.size()) {
     return false;
   }
-  return view.substr(0, prefix.size()) == prefix;
+  return std::equal(prefix.begin(), prefix.end(), view.begin());
 }
 
 bool constexpr begins_with(std::string_view view, std::string_view prefix) {
   if (view.size() < prefix.size()) {
     return false;
   }
-  return view.substr(0, prefix.size()) == prefix;
+  return std::equal(prefix.begin(), prefix.end(), view.begin());
 }
 
 bool constexpr is_ascii(std::u32string_view view) {
@@ -10144,13 +10129,12 @@ ada_really_inline constexpr bool is_lowercase_hex(const char c) noexcept {
   return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f');
 }
 
+constexpr static char hex_to_binary_table[] = {
+    0,  1,  2,  3,  4, 5, 6, 7, 8, 9, 0, 0,  0,  0,  0,  0,  0, 10, 11,
+    12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0,  0,  0,  0,  0,  0, 0,  0,
+    0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15};
 unsigned constexpr convert_hex_to_binary(const char c) noexcept {
-  // this code can be optimized.
-  if (c <= '9') {
-    return c - '0';
-  }
-  char del = c >= 'a' ? 'a' : 'A';
-  return 10 + (c - del);
+  return hex_to_binary_table[c - '0'];
 }
 
 std::string percent_decode(const std::string_view input, size_t first_percent) {
@@ -10159,8 +10143,9 @@ std::string percent_decode(const std::string_view input, size_t first_percent) {
   if (first_percent == std::string_view::npos) {
     return std::string(input);
   }
-  std::string dest(input.substr(0, first_percent));
+  std::string dest;
   dest.reserve(input.length());
+  dest.append(input.substr(0, first_percent));
   const char* pointer = input.data() + first_percent;
   const char* end = input.data() + input.size();
   // Optimization opportunity: if the following code gets
@@ -10197,9 +10182,10 @@ std::string percent_encode(const std::string_view input,
     return std::string(input);
   }
 
-  std::string result(input.substr(0, std::distance(input.begin(), pointer)));
+  std::string result;
   result.reserve(input.length());  // in the worst case, percent encoding might
                                    // produce 3 characters.
+  result.append(input.substr(0, std::distance(input.begin(), pointer)));
 
   for (; pointer != input.end(); pointer++) {
     if (character_sets::bit_at(character_set, *pointer)) {
@@ -15015,7 +15001,7 @@ ada_string ada_get_protocol(ada_url result) noexcept {
   return ada_string_create(out.data(), out.length());
 }
 
-uint8_t ada_get_url_host_type(ada_url result) noexcept {
+uint8_t ada_get_host_type(ada_url result) noexcept {
   ada::result<ada::url_aggregator>& r = get_instance(result);
   if (!r) {
     return 0;
@@ -15092,6 +15078,13 @@ bool ada_set_pathname(ada_url result, const char* input,
   return r->set_pathname(std::string_view(input, length));
 }
 
+/**
+ * Update the search/query of the URL.
+ *
+ * If a URL has `?` as the search value, passing empty string to this function
+ * does not remove the attribute. If you need to remove it, please use
+ * `ada_clear_search` method.
+ */
 void ada_set_search(ada_url result, const char* input, size_t length) noexcept {
   ada::result<ada::url_aggregator>& r = get_instance(result);
   if (r) {
@@ -15099,6 +15092,13 @@ void ada_set_search(ada_url result, const char* input, size_t length) noexcept {
   }
 }
 
+/**
+ * Update the hash/fragment of the URL.
+ *
+ * If a URL has `#` as the hash value, passing empty string to this function
+ * does not remove the attribute. If you need to remove it, please use
+ * `ada_clear_hash` method.
+ */
 void ada_set_hash(ada_url result, const char* input, size_t length) noexcept {
   ada::result<ada::url_aggregator>& r = get_instance(result);
   if (r) {
@@ -15106,6 +15106,39 @@ void ada_set_hash(ada_url result, const char* input, size_t length) noexcept {
   }
 }
 
+void ada_clear_port(ada_url result) noexcept {
+  ada::result<ada::url_aggregator>& r = get_instance(result);
+  if (r) {
+    r->clear_port();
+  }
+}
+
+/**
+ * Removes the hash of the URL.
+ *
+ * Despite `ada_set_hash` method, this function allows the complete
+ * removal of the hash attribute, even if it has a value of `#`.
+ */
+void ada_clear_hash(ada_url result) noexcept {
+  ada::result<ada::url_aggregator>& r = get_instance(result);
+  if (r) {
+    r->clear_hash();
+  }
+}
+
+/**
+ * Removes the search of the URL.
+ *
+ * Despite `ada_set_search` method, this function allows the complete
+ * removal of the search attribute, even if it has a value of `?`.
+ */
+void ada_clear_search(ada_url result) noexcept {
+  ada::result<ada::url_aggregator>& r = get_instance(result);
+  if (r) {
+    r->clear_search();
+  }
+}
+
 bool ada_has_credentials(ada_url result) noexcept {
   ada::result<ada::url_aggregator>& r = get_instance(result);
   if (!r) {
diff --git a/deps/ada/ada.h b/deps/ada/ada.h
index caceff37d56121..eeae41e24f8d27 100644
--- a/deps/ada/ada.h
+++ b/deps/ada/ada.h
@@ -1,4 +1,4 @@
-/* auto-generated on 2023-08-26 17:38:28 -0400. Do not edit! */
+/* auto-generated on 2023-08-30 11:44:21 -0400. Do not edit! */
 /* begin file include/ada.h */
 /**
  * @file ada.h
@@ -8,7 +8,7 @@
 #define ADA_H
 
 /* begin file include/ada/ada_idna.h */
-/* auto-generated on 2023-05-07 19:12:14 -0400. Do not edit! */
+/* auto-generated on 2023-08-29 15:28:19 -0400. Do not edit! */
 /* begin file include/idna.h */
 #ifndef ADA_IDNA_H
 #define ADA_IDNA_H
@@ -4584,9 +4584,10 @@ ada_really_inline constexpr bool is_single_dot_path_segment(
 ada_really_inline constexpr bool is_lowercase_hex(const char c) noexcept;
 
 /**
- * @details Convert hex to binary.
+ * @details Convert hex to binary. Caller is responsible to ensure that
+ * the parameter is an hexadecimal digit (0-9, A-F, a-f).
  */
-unsigned constexpr convert_hex_to_binary(char c) noexcept;
+ada_really_inline unsigned constexpr convert_hex_to_binary(char c) noexcept;
 
 /**
  * first_percent should be  = input.find('%')
@@ -4840,6 +4841,10 @@ struct url_aggregator : url_base {
   /** @return true if the URL has a search component */
   [[nodiscard]] inline bool has_search() const noexcept override;
 
+  inline void clear_port();
+  inline void clear_hash();
+  inline void clear_search() override;
+
  private:
   friend ada::url_aggregator ada::parser::parse_url<ada::url_aggregator>(
       std::string_view, const ada::url_aggregator *);
@@ -4914,12 +4919,9 @@ struct url_aggregator : url_base {
   inline void update_base_port(uint32_t input);
   inline void append_base_pathname(const std::string_view input);
   inline uint32_t retrieve_base_port() const;
-  inline void clear_port();
   inline void clear_hostname();
-  inline void clear_hash();
-  inline void clear_pathname() override;
-  inline void clear_search() override;
   inline void clear_password();
+  inline void clear_pathname() override;
   inline bool has_dash_dot() const noexcept;
   void delete_dash_dot();
   inline void consume_prepared_path(std::string_view input);
@@ -6448,7 +6450,9 @@ inline void url_aggregator::clear_hostname() {
                        " with " + components.to_string() + "\n" + to_diagram());
 #endif
   ADA_ASSERT_TRUE(has_authority());
-  ADA_ASSERT_TRUE(has_empty_hostname());
+  ADA_ASSERT_EQUAL(has_empty_hostname(), true,
+                   "hostname should have been cleared on buffer=" + buffer +
+                       " with " + components.to_string() + "\n" + to_diagram());
   ADA_ASSERT_TRUE(validate());
 }
 
@@ -6922,14 +6926,14 @@ inline void url_search_params::sort() {
 #ifndef ADA_ADA_VERSION_H
 #define ADA_ADA_VERSION_H
 
-#define ADA_VERSION "2.6.3"
+#define ADA_VERSION "2.6.5"
 
 namespace ada {
 
 enum {
   ADA_VERSION_MAJOR = 2,
   ADA_VERSION_MINOR = 6,
-  ADA_VERSION_REVISION = 3,
+  ADA_VERSION_REVISION = 5,
 };
 
 }  // namespace ada
diff --git a/deps/ada/ada_c.h b/deps/ada/ada_c.h
index 170686b56320f1..0d01e57c48d72d 100644
--- a/deps/ada/ada_c.h
+++ b/deps/ada/ada_c.h
@@ -68,7 +68,7 @@ ada_string ada_get_hostname(ada_url result);
 ada_string ada_get_pathname(ada_url result);
 ada_string ada_get_search(ada_url result);
 ada_string ada_get_protocol(ada_url result);
-uint8_t ada_get_url_host_type(ada_url result);
+uint8_t ada_get_host_type(ada_url result);
 
 // url_aggregator setters
 // if ada_is_valid(result)) is false, the setters have no effect
@@ -84,6 +84,11 @@ bool ada_set_pathname(ada_url result, const char* input, size_t length);
 void ada_set_search(ada_url result, const char* input, size_t length);
 void ada_set_hash(ada_url result, const char* input, size_t length);
 
+// url_aggregator clear methods
+void ada_clear_port(ada_url result);
+void ada_clear_hash(ada_url result);
+void ada_clear_search(ada_url result);
+
 // url_aggregator functions
 // if ada_is_valid(result) is false, functions below will return false
 bool ada_has_credentials(ada_url result);
diff --git a/doc/contributing/maintaining/maintaining-dependencies.md b/doc/contributing/maintaining/maintaining-dependencies.md
index 7f09f56973b163..7f75a848cc90c3 100644
--- a/doc/contributing/maintaining/maintaining-dependencies.md
+++ b/doc/contributing/maintaining/maintaining-dependencies.md
@@ -9,7 +9,7 @@ All dependencies are located within the `deps` directory.
 This a list of all the dependencies:
 
 * [acorn][]
-* [ada 2.6.3][]
+* [ada 2.6.5][]
 * [base64][]
 * [brotli][]
 * [c-ares][]
@@ -148,7 +148,7 @@ The [acorn](https://github.com/acornjs/acorn) dependency is a JavaScript parser.
 [acorn-walk](https://github.com/acornjs/acorn/tree/master/acorn-walk) is
 an abstract syntax tree walker for the ESTree format.
 
-### ada 2.6.3
+### ada 2.6.5
 
 The [ada](https://github.com/ada-url/ada) dependency is a
 fast and spec-compliant URL parser written in C++.
@@ -312,7 +312,7 @@ it comes from the Chromium team's zlib fork which incorporated
 performance improvements not currently available in standard zlib.
 
 [acorn]: #acorn
-[ada 2.6.3]: #ada-263
+[ada 2.6.5]: #ada-265
 [base64]: #base64
 [brotli]: #brotli
 [c-ares]: #c-ares