example.com?utm_source=newsletter1&utm_medium=email&utm_campaign=sale)标记您的在线活动。所有这些跟踪代码都不是网站正确显示或工作所必需的，因此可以删除，这正是ClearURL所做的。

Please use caution when installing third-party add-ons. If you are immediately prompted to install an add-on, please let us know