diff --git a/Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp b/Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp
index e075b8a945..9bbdc7a759 100644
--- a/Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp
+++ b/Userland/Libraries/LibWeb/Bindings/MainThreadVM.cpp
@@ -32,6 +32,7 @@
 #include <LibWeb/HTML/Window.h>
 #include <LibWeb/HTML/WindowProxy.h>
 #include <LibWeb/Namespace.h>
+#include <LibWeb/NavigationTiming/EntryNames.h>
 #include <LibWeb/PerformanceTimeline/EntryTypes.h>
 #include <LibWeb/Platform/EventLoopPlugin.h>
 #include <LibWeb/SVG/AttributeNames.h>
@@ -80,6 +81,7 @@ ErrorOr<void> initialize_main_thread_vm()
     TRY(HTML::EventNames::initialize_strings());
     TRY(HTML::TagNames::initialize_strings());
     TRY(Namespace::initialize_strings());
+    TRY(NavigationTiming::EntryNames::initialize_strings());
     TRY(PerformanceTimeline::EntryTypes::initialize_strings());
     TRY(SVG::AttributeNames::initialize_strings());
     TRY(SVG::TagNames::initialize_strings());
diff --git a/Userland/Libraries/LibWeb/NavigationTiming/EntryNames.cpp b/Userland/Libraries/LibWeb/NavigationTiming/EntryNames.cpp
new file mode 100644
index 0000000000..2769f4690c
--- /dev/null
+++ b/Userland/Libraries/LibWeb/NavigationTiming/EntryNames.cpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/NavigationTiming/EntryNames.h>
+
+namespace Web::NavigationTiming::EntryNames {
+
+#define __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(name) FlyString name;
+ENUMERATE_NAVIGATION_TIMING_ENTRY_NAMES
+#undef __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME
+
+ErrorOr<void> initialize_strings()
+{
+    static bool s_initialized = false;
+    VERIFY(!s_initialized);
+
+#define __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(name) \
+    name = TRY(#name##_fly_string);
+    ENUMERATE_NAVIGATION_TIMING_ENTRY_NAMES
+#undef __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME
+
+    s_initialized = true;
+    return {};
+}
+
+}
diff --git a/Userland/Libraries/LibWeb/NavigationTiming/EntryNames.h b/Userland/Libraries/LibWeb/NavigationTiming/EntryNames.h
new file mode 100644
index 0000000000..3343f745fd
--- /dev/null
+++ b/Userland/Libraries/LibWeb/NavigationTiming/EntryNames.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/FlyString.h>
+
+namespace Web::NavigationTiming::EntryNames {
+
+#define ENUMERATE_NAVIGATION_TIMING_ENTRY_NAMES                          \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(navigationStart)            \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(unloadEventStart)           \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(unloadEventEnd)             \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(redirectStart)              \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(redirectEnd)                \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(fetchStart)                 \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domainLookupStart)          \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domainLookupEnd)            \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(connectStart)               \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(connectEnd)                 \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(secureConnectionStart)      \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(requestStart)               \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(responseStart)              \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(responseEnd)                \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domLoading)                 \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domInteractive)             \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domContentLoadedEventStart) \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domContentLoadedEventEnd)   \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(domComplete)                \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(loadEventStart)             \
+    __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(loadEventEnd)
+
+#define __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME(name) extern FlyString name;
+ENUMERATE_NAVIGATION_TIMING_ENTRY_NAMES
+#undef __ENUMERATE_NAVIGATION_TIMING_ENTRY_NAME
+
+ErrorOr<void> initialize_strings();
+
+}