有百度，谷歌查詢詳細的收錄情況，Alexa查詢排名，為什麼還需要pastrank.com呢？
Good question, in pastrank you can get
  1. View alexa traffic history rank, though your alexa rank is behind 100,000
  2. View past 24h, past week, past month, past year history data of search engine
  3. Get linkin datas by google, baidu, alexa ext.
  4. Completly open API,provide JSON/JSONP/Xml, please go to API
Pastrank多長時間監控我的網站一次？
對於新增加的監控，Pastrank在7天內將每天監控一次，7天過後將每週監控一次。如果你的網站連續多次監控數據為0，Pastrank將每個月監控一次。
Pastrank提供的服務是免費的嗎？
Pastrank is totally free. what's more, API is free too. hope you enjoy using it. and for the better development of pastrank, hope you can add PastRank to your website, or write posts to recommend Pastrank to others. if you think Pastrank is great, you can donote for our hardwork.

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