When you use Tor Browser, your traffic exits through shared Tor exit relays. Thousands of users around the world may be using the same relay IP address at the same time.

网站通常会将此判定为异常活动，例如：

• 大量自动化请求或登录尝试来自同一 IP 地址。
• 与机器人、网络爬虫或恶意软件活动特征相似的网络流量模式。

As a result, some sites present CAPTCHAs, temporary blocks, or even display warnings about “suspicious” or “infected” traffic.

您可以做什么

• Try a new circuit: In Tor Browser, choose "New Circuit for this Site" to get a different exit relay (and therefore a different IP address).
• Wait and try later: These warnings are often temporary, and usually clear up when traffic levels at a relay return to normal.
• Use alternative services: Some search engines and websites (like DuckDuckGo) are friendlier to Tor users and rarely trigger CAPTCHAs.

重要须知

• These warnings do not mean Tor Browser is spyware or that your device is infected.
• Websites are responding to the shared nature of exit relays, not your individual activity.
• To our knowledge, most large websites are not specifically trying to block Tor - their automated abuse detection systems simply can't tell Tor traffic apart from suspicious traffic.