diff --git a/web_poet/exceptions.py b/web_poet/exceptions.py
new file mode 100644
index 00000000..769cb017
--- /dev/null
+++ b/web_poet/exceptions.py
@@ -0,0 +1,29 @@
+class ReloadResponseData(Exception):
+    """Indicates that there's something wrong with :class:`~.ResponseData` and
+    it needs to be downloaded again.
+
+    You should use this in instance where the HTTP Response is malformed, missing
+    some required information, etc.
+
+    This should be raised inside the subclasses of :class:`~.WebPage` or anything
+    which requires :class:`~.ResponseData` as a dependency. The framework which
+    handles the Page Objects should then attempt to create a new instance with a
+    fresh :class:`~.ResponseData` dependency.
+    """
+
+    pass
+
+
+class DelegateFallback(Exception):
+    """Indicates that the Page Object isn't able to perform data extractions on
+    a given page.
+
+    This should be raised in cases wherein the page has unknown layouts, unsupported
+    data, etc.
+
+    Raising this won't be a guarantee that a fallback parser for the page is
+    available. It would depend on the framework using the Page Object on how to
+    resolve the fallbacks.
+    """
+
+    pass