> For the complete documentation index, see [llms.txt](https://doc.thordata.com/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.thordata.com/doc/zh-hk/chang-jian-wen-ti/chan-pin-wen-ti/qi-ta/you-hui-quan-wang-zhan-xiang-jian-kong-zhe-kou-ma-shi-fou-you-xiao-yong-na-ge-chan-pin.md).

# 優惠券網站想監控折扣碼是否有效，用哪個產品？

用 [Web Scraper API](https://www.thordata.com/products/web-scraper-api) 較合適。它適合公開優惠頁、折扣標題、到期日和商家資訊；需要地區差異時，可用 [ThorData 代理 IP](https://www.thordata.com/?ls=community\&lk=proxyip)。