Advertising policy
This site earns revenue from display ads and affiliate links, which keep the tools and content free. We commit to the following boundaries:
① Clear labelling: every ad slot is marked “Advertisement” and distinguishable from editorial content; affiliate links are disclosed where they appear. ② No endorsement: ads are served by ad networks and do not represent our recommendation or medical advice. ③ Restrained placement: no ads in the first screen of calculator pages, and never between the Calculate button and your results. ④ Editorial independence: advertising and affiliate relationships never influence editorial conclusions; we do not accept deals that ask us to change medical content.
If you see an inappropriate ad, let us know and we will block the category with the ad network.