To verify the authenticity of a website or online transaction, there are a few things that you should consider:

1. Check the URL of the website; it should begin with https:// for a secure connection.
2. Look closely at the domain name of the website as it should match the name of the company you are working with.
3. Check the security symbol of the website; it should appear as a small lock at the beginning of the URL.
4. Finally, research the reputation of the business that you're working with.

Verifying a website or online transaction is important to ensure you have a secure and safe online experience.