diff --git a/CHANGES/9171.misc.rst b/CHANGES/9171.misc.rst
new file mode 100644
index 00000000000..c6742edd891
--- /dev/null
+++ b/CHANGES/9171.misc.rst
@@ -0,0 +1,3 @@
+Improved performance of determining if a URL is absolute -- by :user:`bdraco`.
+
+The property :attr:`~yarl.URL.absolute` is more performant than the method ``URL.is_absolute()`` and preferred when newer versions of yarl are used.
diff --git a/aiohttp/client.py b/aiohttp/client.py
index da89ee2a790..e50d216cf5a 100644
--- a/aiohttp/client.py
+++ b/aiohttp/client.py
@@ -444,7 +444,7 @@ def _build_url(self, str_or_url: StrOrURL) -> URL:
         if self._base_url is None:
             return url
         else:
-            assert not url.is_absolute() and url.path.startswith("/")
+            assert not url.absolute and url.path.startswith("/")
             return self._base_url.join(url)
 
     async def _request(
diff --git a/aiohttp/test_utils.py b/aiohttp/test_utils.py
index 01496b6711a..850efcb8b65 100644
--- a/aiohttp/test_utils.py
+++ b/aiohttp/test_utils.py
@@ -148,7 +148,7 @@ def make_url(self, path: StrOrURL) -> URL:
         assert self._root is not None
         url = URL(path)
         if not self.skip_url_asserts:
-            assert not url.is_absolute()
+            assert not url.absolute
             return self._root.join(url)
         else:
             return URL(str(self._root) + str(path))
diff --git a/aiohttp/web_request.py b/aiohttp/web_request.py
index eca71e4413a..91fc1f42bfe 100644
--- a/aiohttp/web_request.py
+++ b/aiohttp/web_request.py
@@ -174,7 +174,7 @@ def __init__(
         self._version = message.version
         self._cache: Dict[str, Any] = {}
         url = message.url
-        if url.is_absolute():
+        if url.absolute:
             if scheme is not None:
                 url = url.with_scheme(scheme)
             if host is not None: