# Csptool

Project, Worldwide.

> A Browser Extension for Testing Content Security Policy
>
> — in its own words, from csptool.net

- Website: https://csptool.net/
- Listed since: 2026
- launched: 2026-04-21
- launch post: https://news.ycombinator.com/item?id=47851969
- hn score: 2
- domain created: 2026-04-11
- Last verified: 2026-04-21


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=47851969, read 2026-04-21

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startup.is · https://startup.is/projects/csptool · open data: /api/v1, /llms.txt