# verify

- [How do I measure how long my OTPs take to arrive?](/explained/verify/how-do-i-measure-how-long-my-otps-take-to-arrive)
- [Two-factor authentication vs. two-step verification: what's the difference?](/explained/verify/two-factor-authentication-vs-two-step-verification)
- [What does OTP mean? One-time passwords explained](/explained/verify/what-does-otp-mean)
- [What is two-factor authentication (2FA)?](/explained/verify/what-is-two-factor-authentication)