# fourzerotwo-si Domains API

**Canonical:** https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-domains-api/  
**Provider:** fourzerotwo-si — https://apis.io/providers/fourzerotwo-si/  
**Base URL:** https://fourzerotwo.si  
**Documentation:** https://fourzerotwo.si

fourzerotwo-si Domains API is one of 67 APIs that [fourzerotwo-si](https://apis.io/providers/fourzerotwo-si/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include domains. The published artifact set on APIs.io includes an OpenAPI specification.

Domains & DNS: Is a domain available, who registered it and when, its DNS records, and how well its email is authenticated (SPF, DMARC, MX).

## Operations (8)

| Method | Path | Summary |
|---|---|---|
| GET | `/v1/domains/availability` | Domains & DNS: Domain availability |
| GET | `/v1/domains/facts` | Domains & DNS: Domain registration facts |
| GET | `/v1/domains/dns` | Domains & DNS: DNS records |
| GET | `/v1/domains/ip-owner` | Domains & DNS: IP owner |
| GET | `/v1/domains/dmca-agent` | Domains & DNS: DMCA agent |
| GET | `/v1/domains/abuse-contacts` | Domains & DNS: Where to report a site |
| GET | `/v1/domains/email-auth` | Domains & DNS: Email authentication check |
| GET | `/v1/domains/ideas` | Domains & DNS: Domain name ideas |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/fourzerotwo-si/openapi/fourzerotwo-si-domains-api-openapi.yml

## Other fourzerotwo-si APIs (12)

- [fourzerotwo data API gateway](https://apis.io/apis/fourzerotwo-si/fourzerotwo-data-api-gateway/)
- [fourzerotwo-si Airports API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-airports-api/)
- [fourzerotwo-si Arxiv API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-arxiv-api/)
- [fourzerotwo-si Bank Of England API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-bank-of-england-api/)
- [fourzerotwo-si Bathing Water API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-bathing-water-api/)
- [fourzerotwo-si Calculators API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-calculators-api/)
- [fourzerotwo-si Clinical Trials API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-clinical-trials-api/)
- [fourzerotwo-si Companies House API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-companies-house-api/)
- [fourzerotwo-si Crossref API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-crossref-api/)
- [fourzerotwo-si Earthquakes API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-earthquakes-api/)
- [fourzerotwo-si Ecb API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-ecb-api/)
- [fourzerotwo-si Eu Tenders API](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-eu-tenders-api/)

## Tags

domains

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fourzerotwo-si/fourzerotwo-si-domains-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fourzerotwo-si/.