IANAL, but for the websites, it's easily trademark infringement. In-N-Out notably sued DoorDash over them using the In-N-Out logo on the site.[0]
It's understandable why. If a customer receives a bad order due to GrubHub, DoorDash, etc., it reflects badly on the restaurant, even if it's not their fault. See claim 29 from the filing[1]:
> Defendant’s use of Plaintiff’s famous trademarks implies that Defendant not only delivers In-N-Out products to its customers, but that the quality and services offered by Defendant is the same as if consumers had made purchases directly from Plaintiff. Upon information and belief, the quality of services offered by Defendant does not at all comport with the standards that consumers expect from Plaintiff’s goods and services. Further, Plaintiff has no control over the time it takes Defendant to deliver Plaintiff’s goods to consumers, or over the temperature at which the goods are kept during delivery, nor over the food handling and safety practices of Defendant’s delivery drivers. While Plaintiff adheres to the Food Code, on information and belief, Defendant does not adhere to such regulations, including with regard to compliance with required food safety and handling practices.
It's understandable why. If a customer receives a bad order due to GrubHub, DoorDash, etc., it reflects badly on the restaurant, even if it's not their fault. See claim 29 from the filing[1]:
> Defendant’s use of Plaintiff’s famous trademarks implies that Defendant not only delivers In-N-Out products to its customers, but that the quality and services offered by Defendant is the same as if consumers had made purchases directly from Plaintiff. Upon information and belief, the quality of services offered by Defendant does not at all comport with the standards that consumers expect from Plaintiff’s goods and services. Further, Plaintiff has no control over the time it takes Defendant to deliver Plaintiff’s goods to consumers, or over the temperature at which the goods are kept during delivery, nor over the food handling and safety practices of Defendant’s delivery drivers. While Plaintiff adheres to the Food Code, on information and belief, Defendant does not adhere to such regulations, including with regard to compliance with required food safety and handling practices.
[0]: https://money.cnn.com/2015/11/12/technology/in-n-out-doordas...
[1]: https://www.eater.com/2015/11/11/9714840/in-n-out-doordash-d...