# Domain DMARC Checker

Startup, Worldwide.


- Website: https://dmarcdefender.io/tools/domain-check
- Listed since: 2026
- launched: 2026-05-15
- launch post: https://news.ycombinator.com/item?id=48146660
- hn score: 4
- domain created: 2025-09-30
- Last verified: 2026-05-15


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=48146660, read 2026-05-15

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startup.is · https://startup.is/registry/domain-dmarc-checker · open data: /api/v1, /llms.txt