但这些爬虫仍露出诸多马脚，其仅针对性抓取内存相关信息，从不使用搜索、购物车等网站功能，流量也无周末低谷、晚间高峰的人类行为特征，一旦遭遇技术问题，流量会骤降数分钟后又恢复满负荷，与自然的用户访问行为截然不同。
Фото: Majid Asgaripour / WANA (West Asia News Agency) via Reuters
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