web filtering software
网页过滤软件
以上为机器翻译结果，长、整句建议使用 人工翻译 。
A less obvious means of Web personalization is collaborative-filtering software that resides on a Web site and tracks users' movements.
另一个不太引人注意的网站个人化的手段是协作过滤软件，它驻留在网站中，跟踪用户动向。
youdao
One tool Magid advises parents to use with caution, however, is Web filtering software like Net Nanny or Cybersitter, which block objectionable content online.
FORBES: On The Web's Edge
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