Domain Intelligence API
One API call for DNS, email security, DNSSEC + RDAP
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Free domain intFree Domain Intelligence API for developers. GET /v1/domain/check?domain=example.com returns DNS (A, AAAA, MX, NS, TXT, CNAME), email security (SPF/DMARC/MX), DNSSEC presence, and RDAP registration data as normalized JSON. FastAPI + live demo, no signup, OpenAPI + Postman included.elligence checker for DNS, SPF, DMARC, DNSSEC and RDAP.
PH · launched Sep 24, 2026 · 1 upvote (top 69%) · 0 views
Niche: data enrichment and lookup apis · 83 launches, 5 in the last 7 days ▼ -17% · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Developer
- Not AI
- Commercial product
- API
- Security
Visit website ↗ Source listing ↗
More like this: all 83 launches in data enrichment and lookup apis →
Could you build this?
Yes This is a lightweight FastAPI wrapper aggregating standard Python libraries for DNS lookups (dnspython), RDAP querying, and basic string parsing for SPF/DMARC.
Competitors
Other products that read as similar to this one : 238 launches clear the similarity bar, closest 8 shown.
Attention rank: #190 of 239 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 329 days after the earliest competitor.
- Email Authentication Checker API · ph · 2026-10-22 · 1 upvotes · similarity 0.63
- MailSenpai DNS Check · ph · 2026-10-13 · 1 upvotes · similarity 0.61
- dnsdon · ph · 2026-10-28 · 1 upvotes · similarity 0.57
- dmarc.quest · ph · 2026-10-25 · 2 upvotes · similarity 0.56
- LayerCall Free Email-DNS Tools · ph · 2026-09-06 · 1 upvotes · similarity 0.55
- Mailradar360 · ph · 2026-10-19 · 1 upvotes · similarity 0.55
- Varaxon Free Security Tools · ph · 2026-11-03 · 1 upvotes · similarity 0.54
- D.NIX. · ph · 2026-09-20 · 2 upvotes · similarity 0.53
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.