Changelog

v2 Domain Services

Domain Availability

Added a separate tri-state availability product at $0.001 per domain, discounted bulk tiers, and a reserved headless-registration URL.

Domain Intelligence

Expanded the $0.01 product to include RDAP registration data (WHOIS-style information), parallel core DNS, SPF/DMARC attributes, IDN/confusable analysis, and four DomainSure reputation signals.

Reliability

Added asynchronous DNS and RDAP fan-out, per-query deadlines, partial results, explicit unknown states, and request-dependent x402 totals for up to 100 domains.

Discovery

Published dedicated SKILL.md pages, JSON Schemas, OpenAPI and /.well-known/x402 metadata. The former RDAP endpoint remains a Domain Intelligence compatibility alias.

v1 Redirect Lookup

Parent-domain matching

Redirect lookups now check parent-domain candidates so subhosts can inherit redirect listings and TXT explanations.

Is This a Redirect?

Added the isredirect skill and human lookup for checking domains against redirects.domainsure.zone, including TXT explanations when present.

v1.0 Initial Rollout

Skill catalog

Added the initial skill registry for public IP, DNS resolver detection, homoglyph analysis, SPF flattener, and DNS Twister.

Machine docs

Added /llms.txt, /openapi.yaml, /auth, /skills.md, and per-skill .md docs.

Homoglyph

Promoted the former IDN/Punycode converter into the Is This a Homoglyph skill with JSON-ready output.

Execution

Added initial open v1 endpoints under https://app.domainhelp.com/api/v1.

Compatibility

v1 endpoints should preserve response fields where possible. New fields may be added as the tools become richer, but existing documented fields should remain compatible.