01 / TIER
Observer
A thoughtful first look at public email-domain security.
$0/ month
- 3 domain checks each month
- Core DNS signals
- Plain-language guidance
Choose the level of context that fits your work. Every tier is built around public evidence, clear boundaries, and defensive use.

Start with the free domain check. Higher tiers are designed to add report depth, saved work, and team workflows.
A thoughtful first look at public email-domain security.
More depth for people who investigate regularly.
Shared visibility for small security-minded teams.
Plans stay within their published monthly limits. Sign in to manage access.