Vouch lets you manually disable voucher code checking on specific website(s) should you want to. For example, you may want to prevent Vouch checking for discount codes on a sensitive website, or a website that never seems to have any working discount codes.
To do this, click the () icon to add it to your blocklist. The domain will immediately be blacklisted and Vouch will cease to work with it. You can re-enable the domain at any timem in your browser's Options or Settings page.