diff --git a/Userland/Libraries/LibWeb/URL/URL.cpp b/Userland/Libraries/LibWeb/URL/URL.cpp
index 8e6ed49b85..949910afae 100644
--- a/Userland/Libraries/LibWeb/URL/URL.cpp
+++ b/Userland/Libraries/LibWeb/URL/URL.cpp
@@ -75,6 +75,42 @@ DOM::ExceptionOr<void> URL::set_href(String const& href)
     return {};
 }
 
+String URL::origin() const
+{
+    // return the serialization of this’s URL’s origin.
+    return m_url.serialize_origin();
+}
+
+String URL::username() const
+{
+    // return this’s URL’s username.
+    return m_url.username();
+}
+
+void URL::set_username(const String& username)
+{
+    // 1. If this’s URL cannot have a username/password/port, then return.
+    if (m_url.cannot_have_a_username_or_password_or_port())
+        return;
+    // 2. Set the username given this’s URL and the given value.
+    m_url.set_username(AK::URL::percent_encode(username, AK::URL::PercentEncodeSet::Userinfo));
+}
+
+String URL::password() const
+{
+    // return this’s URL’s password.
+    return m_url.password();
+}
+
+void URL::set_password(String const& password)
+{
+    // 1. If this’s URL cannot have a username/password/port, then return.
+    if (m_url.cannot_have_a_username_or_password_or_port())
+        return;
+    // 2. Set the password given this’s URL and the given value.
+    m_url.set_password(AK::URL::percent_encode(password, AK::URL::PercentEncodeSet::Userinfo));
+}
+
 URLSearchParams const* URL::search_params() const
 {
     return m_query;
diff --git a/Userland/Libraries/LibWeb/URL/URL.h b/Userland/Libraries/LibWeb/URL/URL.h
index 7406aa86e8..0b1b2461ec 100644
--- a/Userland/Libraries/LibWeb/URL/URL.h
+++ b/Userland/Libraries/LibWeb/URL/URL.h
@@ -31,6 +31,14 @@ public:
     String href() const;
     DOM::ExceptionOr<void> set_href(String const&);
 
+    String origin() const;
+
+    String username() const;
+    void set_username(String const&);
+
+    String password() const;
+    void set_password(String const&);
+
     URLSearchParams const* search_params() const;
 
     String to_json() const;
diff --git a/Userland/Libraries/LibWeb/URL/URL.idl b/Userland/Libraries/LibWeb/URL/URL.idl
index a32ea6e5e5..7ea731e04f 100644
--- a/Userland/Libraries/LibWeb/URL/URL.idl
+++ b/Userland/Libraries/LibWeb/URL/URL.idl
@@ -2,10 +2,10 @@ interface URL {
     constructor(USVString url, optional USVString base);
 
     stringifier attribute USVString href;
-    // TODO: readonly attribute USVString origin;
+    readonly attribute USVString origin;
     // TODO: attribute USVString protocol;
-    // TODO: attribute USVString username;
-    // TODO: attribute USVString password;
+    attribute USVString username;
+    attribute USVString password;
     // TODO: attribute USVString host;
     // TODO: attribute USVString hostname;
     // TODO: attribute USVString port;