Home robots are the hardest category to verify, because the customers are private households that cannot be named. That is a limit of this ladder, not a verdict on the robots, and it is stated on every page where it applies.
Get the monthly index delta
Tier moves, new robots on the ladder, and the evidence behind each change. One email a month, free, from the same ledger this page is built on.
You are in. Please confirm the email we just sent; the next index delta lands after the monthly re-score.
That did not work. Please sign up at news.theresarobotforthat.com instead.
Makers, customers, operators: submit a robot, a correction, or dated evidence. An arms-length source is what moves a tier.
Every submission is reviewed by hand; nothing publishes automatically.