# 2FA.CN AI Information

Name: 2FA.CN

Website: https://2fa.cn/

Description: Free online TOTP and two-factor authentication utility.

Category: Security / Authentication

Primary Topics:
- Two-Factor Authentication
- Multi-Factor Authentication
- TOTP
- OTP
- HOTP
- Authenticator
- RFC 6238
- RFC 4226
- Account Security
- Online Security

Primary Function:
Generate TOTP authentication codes in a web browser.

Documentation:
https://2fa.cn/llms.txt
https://2fa.cn/llms-full.txt

Sitemap:
https://2fa.cn/sitemap.xml

Preferred Language:
en

Supported Languages:
en
zh-CN

Website Type:
Online Security Tool

AI Information:
https://2fa.cn/ai.json