DomainSignal
PLAYBOOKS & ARCHITECTURE
From eliminating cross-provider cold email deliverability drops to unmasking sovereign GovCloud defense contractors in 25ms.
Use case 01
Sending cold emails from Google Workspace to Microsoft 365 triggers spam filters up to 3x more often due to aggressive cross-vendor filtering.
mailbox_infrastructure.primary_provider
recommended_sender
Segment lead lists before upload. Route Google leads to Google sending mailboxes and Outlook leads to M365 mailboxes.
Use case 02
Enterprise Email Security Gateways (SEGs) rewrite hyperlinks and detonate tracking pixels in virtual crawlers, triggering fake bot clicks and dumping pitches into corporate Quarantine folders.
security_gateway_detected
outbound_guidance.link_safety
Strip Links & Pixels
Automatically switch to 100% plain text outreach with zero custom tracking domains for accounts shielded by Proofpoint or Mimecast.
Use case 03
ITAR, DFARS, and federal defense contractors are legally barred from using commercial SaaS and operate on isolated sovereign clouds. Identifying them manually requires hours of research.
identity_and_sso.cloud_environment
US_Gov_GCC_High
is_gov_cloud
Automatically tag and prioritize high-ticket defense leads (e.g. Boeing, Lockheed subsidiaries) for specialized GovCloud compliance pitches.
Use case 04
Legacy data providers charge $15,000/yr for stale tech stack data scraped from website cookies and HTML tags.
detected_tech_stack
Salesforce, HubSpot, Adobe Marketo, Zendesk, SendGrid from DNS SPF includes
Trigger competitor take-out campaigns and ecosystem software pitches based on verified live email infrastructure.
Use case 05
Autonomous agents (CrewAI, Claude Code, LangChain) hallucinate when parsing messy HTML and waste expensive LLM tokens on dead domains.
Sub-30ms JSON responses
deliverability_health.is_parked_or_abandoned
tenant_guid
Provide agents with an unblockable, deterministic tool to filter dead leads, verify corporate parents, and execute pre-flight safety audits before drafting emails.
Run a live probe or enrich a lead CSV in under a minute. 250 free credits on every new key.