# DomainRef, pay as you go, Pay per call, GET /v1/domain/check: Domain WHOIS API

> Use when mail lands in spam, before an email campaign, for vendor due diligence or to confirm a Microsoft 365 tenant: graded SPF, DKIM, DMARC, MX, MTA-STS, DNSSEC, CAA, TLS and domain age, plus BIMI and blocklist info, each with the exact fix record.

DomainRef's domain WHOIS API on its Pay per call plan. It costs $10.00 per 1,000 domains. DomainRef's docs list 4 of the 9 fields on our checklist: Registrar, Created on, Expires on, Statuses.
We haven't run DomainRef through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
Half of the 316 plans we rank by price cost $1.495 per 1,000 domains or less. This plan costs less per 1,000 domains than 6% of the 316 plans.
[Searchwire's $10 pack](https://datacircle.dev/domain-whois-apis/searchwire/10-pack/llms.txt) is the cheapest paid plan per 1,000 domains. Searchwire's domain WHOIS API costs nothing beyond the plan price.
[Robtex](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt), [DomScan](https://datacircle.dev/domain-whois-apis/domscan/6-monthly-starter-post-v1-whois-bulk/llms.txt) and [WhoisFreaks](https://datacircle.dev/domain-whois-apis/whoisfreaks/200-monthly-monthly-subscription-150000-api-credits-post-v2-0-bulkwhois-live/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/domainref/pay-as-you-go-pay-per-call-get-v1-domain-check
- [Domain WHOIS API: the 13 best providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://domainref.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://domainref.dev/v1/domain/check`
- API key: not needed
- Its API docs: https://domainref.dev/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: DomainRef (https://domainref.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 44%
- Registrar: ✓
- Created on: ✓
- Expires on: ✓
- Statuses: ✓

## Price

- $ per 1,000 domains: $10.00
- Per: call
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Use when mail lands in spam, before an email campaign, for vendor due diligence or to confirm a Microsoft 365 tenant: graded SPF, DKIM, DMARC, MX, MTA-STS, DNSSEC, CAA, TLS and domain age, plus BIMI and blocklist info, each with the exact fix record.

## Data

- Freshness: live
- Keep data: no limit
- Use data: Check only domains you own or manage, or have a legitimate interest in, such as a vendor or a sender you are assessing. Do not use DomainRef to harm, harass or attack others, to plan abuse of a domain, or to get around its rate limits. Do not use DomainRef or its results to gain or attempt unauthorised access to any system (Cybercrimes Act 19 of 2020), or to build lists for unsolicited electronic marketing (POPIA section 69).

## Plan

- Pay: per call
- You get: 1 request
- Enough for: 1 call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: domain
- Method: GET
- Path: /v1/domain/check

## About the plan

- Plan: Pay per call
- Who can get it: anyone

## The 12 fields the plan's answer can hold

domain, checked at, registrar, registrar IANA ID, created date, expiry date, domain age, status codes, grade, finding, fix, notes

## DomainRef's plans (1)

- [DomainRef, pay as you go, Pay per call, GET /v1/domain/check](https://datacircle.dev/domain-whois-apis/domainref/pay-as-you-go-pay-per-call-get-v1-domain-check/llms.txt): $10.00 per 1,000, 44% complete, live

## DomainRef's calls (2)

- `GET /v1/domain/age`: [DomainRef, pay as you go, Pay per call, GET /v1/domain/age](https://datacircle.dev/domain-whois-apis/domainref/pay-as-you-go-pay-per-call-get-v1-domain-age/llms.txt)
- `GET /v1/domain/check`: [DomainRef, pay as you go, Pay per call, GET /v1/domain/check](https://datacircle.dev/domain-whois-apis/domainref/pay-as-you-go-pay-per-call-get-v1-domain-check/llms.txt)

## DomainRef's APIs (1)

- [DomainRef: domain WHOIS API pricing, 1 plan, GET /v1/domain/check](https://datacircle.dev/domain-whois-apis/domainref/pay-as-you-go-pay-per-call-get-v1-domain-check/llms.txt)

## DomainRef: domain WHOIS API alternatives

- [fetcher.cloud, pay as you go](https://datacircle.dev/domain-whois-apis/fetcher-cloud/pay-as-you-go/llms.txt): $5.00 per 1,000, 44% complete, live
- [How.is, $5 monthly](https://datacircle.dev/domain-whois-apis/how-is/5-monthly/llms.txt): $5.00 per 1,000, 56% complete, live
- [Whoxy, $470 pack](https://datacircle.dev/domain-whois-apis/whoxy/470-pack/llms.txt): $9.40 per 1,000, 78% complete, live
- [ViewDNS.info, $149 monthly](https://datacircle.dev/domain-whois-apis/viewdns-info/149-monthly/llms.txt): $9.933 per 1,000, 89% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-07.

- https://domainref.dev/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://domainref.dev/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://domainref.dev/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://domainref.dev/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://domainref.dev/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing