The short version
Some links on this site are affiliate links. If you click one and buy a policy or a product, the company pays us a commission. It costs you nothing extra, and the price you pay is the same either way.
Every such link is labeled where it appears, not only here. If a link is not labeled, it is not paid.
What the money actually does
Affiliate links exist so the site can pay for itself. They do not, yet. Revenue goes back into research access, hosting, image licensing and the hours it takes to pull figures out of papers accurately rather than quickly. Taken together we spend more on this than it returns.
We say so for a practical reason rather than a noble one. A site that depended on conversions would have every incentive to make insurance look more necessary than the evidence supports, to round health risks upward, and to bury the finding that some breeds are largely fine. This one does not, and the figures on it should be read with that in mind.
If that ever changes, this paragraph changes with it.
What advertisers cannot buy
Placement in a cost table. A change to a prevalence figure. Removal of a health finding. A different breed ranking. If a partner asks for any of these, we decline and say so.