free resources

Tools & Resources

Passive security checks, awareness games and diagnostic tools — all free, all built by the Red Notice team.

Diagnostic Tools
passive recon

Domain Security Check

Instantly check any domain's email security posture — SPF, DKIM, DMARC, MTA-STS, certificate transparency, Shodan exposure and blacklist status. No scanning, no traffic to the target.

SPF DKIM DMARC MTA-STS Shodan Certs
Run check
Games
phishing awareness

Phish Hunt

94% of cyber attacks start with a phishing email. Play Phish Hunt — a fast-paced game that drops real and fake emails in your inbox. Can your team tell the difference?

Interactive Team Training Phishing
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get help

Found something you want fixed?

These tools highlight the issues — Red Notice fixes them. We configure SPF, DKIM and DMARC to full enforcement without breaking your mail flow.

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