> For the complete documentation index, see [llms.txt](https://doc.9http.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.9http.com/chang-jian-wen-ti/zhi-fu-wen-ti/shi-fou-zhi-chi-mian-fei-shi-yong.md).

# 是否支持免费试用？

9HTTP部分套餐支持免费试用；出于保障 长效静态ISP IP纯净度与独享性的考虑，该类套餐暂不开放免费试用。用户可联系在线客服，申请500MB免费试用额度。