From June 22nd, 2021 to May 6th, 2022, 33% user give 5-star rating, 33% user give 3-star rating, 33% user give 1-star rating. for WA Number Checker chrome extension.
You can also check out this link= https://www.proweblook.com/whatsapp-number-checker We are also providing APIs for WhatsApp Number Verification.
dont use it , my whatsapp number got banned. Never use it.
good