Hi, my guess would be that your browsers redirect you to this link because of potentially unwanted applications which got installed on your computer together with freeware downloads. To eliminate this issues first look through your installed programs in your Control Panel and eliminate all recently installed and suspicious applications (especially the ones related to coupons and savings, for example "Coupon Server", "Amazon Mini Saver", "Itsarealdeal", etc.) If you can't uninstall any of the unwanted programs use third party tools to assist you in this task -

CCleaner
Download, install and run CCleaner. After launching the program select "Tools". In the uninstall programs list select the program you want to uninstall and click the "Run Uninstaller" button.

Revo Uninstaller
Download, install and run Revo Uninstaller. After launching the program select the program you want to uninstall from the list and click on the "uninstall" button.

IObit uninstaller
Download, install and run IObit Uninstaller. After launching the program select the program you want to uninstall from the list and click on the "uninstall" button.

After uninstalling all of the unwanted applications and removing their plugins from your Internet browsers (following this removal guide https://www.pcrisk.com/removal-guides/7899-amazon-mini-saver-adware), scan your computer with Malwarebytes Antimalware and Spyhuter. https://www.pcrisk.com/top-spyware-removers