怎么查询qq号是否被封？

1、首先在电脑浏览器中输入QQ安全中心进入其官网首页。
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2、然后在页面右下方找到“账号解封”选项，点击该选项。
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3、进入账号解封的步骤中，在其中输入需要查询的QQ号，点击下一步。
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4、如果输入的账号没有被封号，就会显示“您输入的账号未被冻结”。
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5、如果输入的账号是被封号了，就会进入验证环节并进入解封操作界面。
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1、点击进入腾讯客服-首页： http://kf.qq.com/，登陆QQ号码，点击【一键诊断】

2、如果账号被封禁，会有封禁时间等等提示。

在没有违规的情况下是不会封号的，除非有大量的黄色图片、链接、反党内容、链接，欺骗行为。如果被封了，第一次需要用手机发短信去解封，第二次需要改密码去解封，所以是第三次被封号。

长时间没登录，异地登陆频繁，或者是持续修改密码也会被封。