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YAS.SH

Focused solutions

One security engine. Clear jobs to be done.

Dedicated pages for each YAS direction, from managed domain monitoring to API-first email infrastructure intelligence.

Email & domain posture monitoring

DomainGuard

Continuously verify the outside-in posture of every client domain. Detect authentication drift, transport-security failures and certificate risk with actionable evidence.

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Pre-send infrastructure QA

Deliverability Radar

Verify email authentication and transport posture across a sending-domain portfolio before—and during—a campaign.

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Certificate & domain expiry monitoring

CertWatch

Track certificate validity, hostname coverage and registration dates across client domain portfolios.

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External security evidence

PostureProof

Translate externally observable email, DNS and transport controls into an evidence-ready posture summary.

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BEC-focused vendor monitoring

Vendor Email Risk

Score the external email posture of supplier domains and surface deterioration before it becomes an invoice-fraud exposure.

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DNS drift detection

DNS Change Sentinel

Build a history of DNS records and alert on consequential drift in mail, nameserver and certificate controls.

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Developer API

Email Infrastructure API

A security-conscious API for normalized SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, DANE and TLS signals.

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Agency-ready posture reporting

White-Label Domain Audits

Create clear email, DNS and transport-security audit reports that help explain risk and remediation.

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Redirect and destination monitoring

Link Compliance Monitor

Monitor redirect chains, destination TLS and target drift across large link inventories.

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Email & DNS cutover validation

Migration Verification

Compare a planned mail configuration with externally visible DNS during cutover and the critical days after.

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