Savings Guard will only appear on supported sites. Currently there are over 200 supported e-commerce sites but as you can imagine this is still only a small portion of all the sites one could possibly shop at on the web. We try our best to support as many sites as we can that are popular with CouponFollow/CATC users. We are constantly adding new supported sites and if you know of a site which frequently has coupon/promo codes available and you would like to see support added for just let us know! Please note that CATC is currently only offering full support for US-based e-commerce sites.