diff --git a/integration/get_test.go b/integration/get_test.go
index ef00531..04dc753 100644
--- a/integration/get_test.go
+++ b/integration/get_test.go
@@ -49,6 +49,16 @@ func TestGetContent(t *testing.T) {
 	assert.True(t, getSize(resp.Body) > 1000)
 }
 
+func TestCustomDomain(t *testing.T) {
+	resp, err := getTestHTTPSClient().Get("https://mock-pages.codeberg-test.org:4430/README.md")
+	assert.NoError(t, err)
+	if !assert.EqualValues(t, http.StatusOK, resp.StatusCode) {
+		t.FailNow()
+	}
+	assert.EqualValues(t, "text/html; charset=utf-8", resp.Header["Content-Type"][0])
+	assert.EqualValues(t, 106, getSize(resp.Body))
+}
+
 func TestGetNotFound(t *testing.T) {
 	log.Printf("== TestGetNotFound ==\n")
 	// test custom not found pages