I need a reliable service to check IMEI I bought a used iPhone

hi, now I need a reliable service to check IMEI. I bought a used iPhone and want to make sure everything is ok with it. What websites or apps are best to use for this? Can anyone recommend proven services? Thanks in advance for your help and advice!

Hello, By entering the IMEI number, I received a full report, which included information about the phone model, its production date and blocking status. This helped me make sure that the phone was not blacklisted.