Check the Footer:
Most legit casinos will mention their operator (e.g., Aspire Global, N1 Interactive, Genesis Global) in the footer or About page.
Licensing Info:
Look for regulation by trusted authorities like the UK Gambling Commission (UKGC), Malta Gaming Authority (MGA), or Curacao eGaming.
Similar Design & Features:
If the casino layout, bonuses, and payment methods feel familiar, it’s likely a sister brand.
Use Sister Casino Directories:
Websites like SisterSites.com or CasinoMentor list trusted sister casinos under each group.
Read Player Reviews:
Online forums and Reddit threads can reveal hidden pros & cons you won’t find in marketing material.