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　　 　　这是我们针对2015年初市面上5000个App的调查分析结果，用移动、联通、电信的手机号码分别测试，短信验证码能做到20秒以内的不到50%，就是在这样的“荒野”中我们创新几乎让人觉察不到，我们通过多通道备份、平台发送机制优化、短信通道优化、机房网络升级等将短信验证码的速度提升到5秒以内。做为一位站长，我见证了SEO初起时的风头无限，也看见了如今PC端流量的日落西山。