# Trustfull, free: Domain WHOIS API

> Check DNS, SSL details and WHOIS information

Trustfull's domain WHOIS API on its Free trial plan. It costs $0.00 per 1,000 domains. Trustfull's docs list 5 of the 9 fields on our checklist: Registrant, Registrar, Created on, Updated on, Expires on.
We haven't run Trustfull through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
This plan is free. We rank 316 plans for domain WHOIS APIs by price. Half the plans cost $1.495 per 1,000 domains or less. [See the best free domain WHOIS API plan.](https://datacircle.dev/best-domain-whois-api.txt)
[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/trustfull/free
- [Domain WHOIS API: the 13 best providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://trustfull.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `POST https://api.fido.id/1.0/domain-intelligence`
- API key: with the plan, on https://trustfull.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Its API docs: https://docs.trustfull.com/reference/trustfull-domain-intelligence?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: Trustfull (https://trustfull.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 56%
- Registrant: ✓
- Registrar: ✓
- Created on: ✓
- Updated on: ✓
- Expires on: ✓

## Price

- $ per 1,000 domains: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: Trustfull Email · Trustfull Phone · Trustfull IP · Trustfull Document · Trustfull Login (Score) · Trustfull Login (Enrollment) · Trustfull Session · Trustfull Hub · Phone Validation · Email Disposable · Phone Disposable · Ip Proxy API · Phone Data Breaches · Phone Portability · Phone To Name · Age Estimation

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Check DNS, SSL details and WHOIS information

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: €0
- You get: 50 credits
- Enough for: 100 calls, once

## Rate limit

- Batch: 1

## Speed

- Answer: by polling

## The call

- You send: customer_id, claims "domain", domain.value. Optional: model_id
- Method: POST
- Path: /domain-intelligence

## About the plan

- Plan: Free trial
- Who can get it: new accounts

## The 162 fields the plan's answer can hold

domain, country code, website exists, website exists taxonomy, website exists SSL, internal links count, external links count, internal email links count, external email links count, internal images count, external images count, page size, has LinkedIn, LinkedIn URL, LinkedIn follower count, LinkedIn company size, LinkedIn avg articles likes count, LinkedIn first article date, LinkedIn last article date, screenshot, has favicon, favicon link, has SSL, SSL is valid, SSL valid from, SSL valid to, SSL issuer organization, company name, company description, company industry, company employees, company founded, company keywords, company annual revenue, company logo, company country, company Twitter URL, company Facebook URL, company LinkedIn URL, company total funding, company tech stack, has Google business, Google business rating, Google business company, Google business review count, Google business reviews, Google business address, Google business country, Google business thumbnail, Google business phone number, Google business description, Google business industry, Google business status, Google business hours, has Google ads, Google ads days since last shown, Google ads, DNS records count, DNS MX records, DNS has MX, DNS MX providers, DNS MX is valid, DNS SPF record, DNS has SPF, DNS SPF is valid, DNS DMARC record, DNS has DMARC, DNS DMARC is valid, index link count, has Glassdoor, Glassdoor link, Glassdoor rating, Glassdoor reviews, has Facebook, Facebook link, Facebook likes, Facebook followers, Facebook rating, Facebook reviews, has Instagram, Instagram link, Instagram likes, Instagram followers, Instagram posts, score, score cluster, registrar, suspicious registrar, registered to, creation date, expiration date, updated date, age, registrant disclosed, whois data, technologies, technologies count, technologies is only adv, technologies are enterprise, website contents emails, website contents has free email, website contents phone numbers, website contents address, website contents VAT code, website contents company name, website contents language code, website contents language country, website contents social links, website contents privacy policy URL, website contents terms and conditions URL, website contents contacts URL, website contents description, website contents tier 1, website contents tier 2, website contents tier 3, social links max followers, has trustpilot, trustpilot URL, trustpilot description, trustpilot rating, trustpilot address, trustpilot phone number, trustpilot email, trustpilot reviews count, trustpilot reviews, trustpilot is suspicious, trustpilot is claimed, privacy policy exists, terms and conditions exists, backlinks count, backlinks count SEO, backlinks referring domains, backlinks referring ips, backlinks score, semrush score, backlinks from a, backlinks from form, backlinks from frame, backlinks from image, privacy policy content path, terms and conditions content path, privacy policy found, privacy policy has clear language, privacy policy specifies company identity, privacy policy specifies contact information, privacy policy specifies data collection, privacy policy specifies data sharing, privacy policy is gdpr compliant, privacy policy has data controller, privacy policy has cookie policy, privacy policy is generic, privacy policy with unrealistic promises, terms and conditions found, terms and conditions has clear language, terms and conditions specifies company identity, terms and conditions specifies contact information, terms and conditions document is specific, terms and conditions with contradictions, terms and conditions with external incoherent references, terms and conditions with data protection, enterprise, website contents is ecommerce

## Trustfull's plans (6)

- [Trustfull, free](https://datacircle.dev/domain-whois-apis/trustfull/free/llms.txt): $0.00 per 1,000, 56% complete
- [Trustfull, €500 pack](https://datacircle.dev/domain-whois-apis/trustfull/500-pack/llms.txt): $562.65 per 1,000, 56% complete
- [Trustfull, €1,000 pack](https://datacircle.dev/domain-whois-apis/trustfull/1000-pack/llms.txt): $562.65 per 1,000, 56% complete
- [Trustfull, €2,500 pack](https://datacircle.dev/domain-whois-apis/trustfull/2500-pack/llms.txt): $562.65 per 1,000, 56% complete
- [Trustfull, €5,000 pack](https://datacircle.dev/domain-whois-apis/trustfull/5000-pack/llms.txt): $562.65 per 1,000, 56% complete
- [Trustfull, contact us](https://datacircle.dev/domain-whois-apis/trustfull/contact-us/llms.txt): 56% complete

## Trustfull's calls for this API (1)

- `POST /domain-intelligence`: [Trustfull, free](https://datacircle.dev/domain-whois-apis/trustfull/free/llms.txt)

## Trustfull's APIs (4)

- [Trustfull: domain WHOIS API pricing, 6 plans](https://datacircle.dev/domain-whois-apis/trustfull/free/llms.txt)
- [Trustfull: email verification API pricing, 6 plans](https://datacircle.dev/validate-email-apis/trustfull/free/llms.txt)
- [Trustfull: reverse email lookup API pricing, 6 plans](https://datacircle.dev/reverse-email-lookup-apis/trustfull/free/llms.txt)
- [Trustfull: phone validation API pricing, 6 plans, POST /phone-validation](https://datacircle.dev/validate-phone-apis/trustfull/free-trial-post-phone-validation/llms.txt)
- [Trustfull: phone validation API pricing, 6 plans, POST /phone](https://datacircle.dev/validate-phone-apis/trustfull/free-trial-post-phone/llms.txt)

## Trustfull: domain WHOIS API alternatives

- [ViewDNS.info, $49 pack](https://datacircle.dev/domain-whois-apis/viewdns-info/49-pack/llms.txt): $49.00 per 1,000, 89% complete, live
- [DR Checker, $15 monthly](https://datacircle.dev/domain-whois-apis/dr-checker/15-monthly/llms.txt): $75.00 per 1,000, 67% complete, 90 days
- [APICK, top-up from ₩55,000](https://datacircle.dev/domain-whois-apis/apick/top-up-from-55000/llms.txt): $75.07 per 1,000, 56% complete
- [FullHunt, $149 monthly](https://datacircle.dev/domain-whois-apis/fullhunt/149-monthly/llms.txt): $298.00 per 1,000, 44% complete

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://docs.trustfull.com/docs/billing.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://docs.trustfull.com/docs/data-catalogue-domain.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://docs.trustfull.com/docs/introduction?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://docs.trustfull.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://docs.trustfull.com/reference/get-domain-api.md?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://docs.trustfull.com/reference/trustfull-domain-intelligence?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://trustfull.com/legal/terms-and-conditions?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://trustfull.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing