# Suprsonic, free: Domain WHOIS API

> Get WHOIS, DNS records, SSL analysis, [...] email security, and hosting data for any domain in one call.

Suprsonic's domain WHOIS API on its Free trial plan. It costs $0.00 per 1,000 domains. Suprsonic's docs list 7 of the 9 fields on our checklist: Registrar, Created on, Updated on, Expires on, Name servers, Statuses, DNSSEC.
In [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt), the best plan from Suprsonic scores 49.1 out of 100. Suprsonic ranks 10th of 13 providers.
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/suprsonic/free
- [Domain WHOIS API: the 13 best providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://suprsonic.ai/plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `POST https://suprsonic.ai/v1/sites/intel`
- API key: with the plan, on https://suprsonic.ai/plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Its API docs: https://suprsonic.ai/apis/site-intel?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: Suprsonic (https://suprsonic.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-05

## In the answer

- Completeness: 78%
- Registrar: ✓
- Created on: ✓
- Updated on: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓
- DNSSEC: ✓

## Price

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

## Charges

- Also pays for: from the same budget: Agent API · Web Search · Scrape · Profile Finder · Email Finder · Image Generation · Text-to-Speech · Speech-to-Text · Sound Generation · SMS · Document Extraction · Company Enrichment · Email Verification · Transcription · Invoice Parsing · Subtitles · File Conversion · Background Removal · Screenshot · Code Execution · Deep Research · Video Info · Video Download · Domains

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Get WHOIS, DNS records, SSL analysis, [...] email security, and hosting data for any domain in one call.

## Data

- Keep data: no API terms
- Use data: 13.2 License Grant. [...] Company grants Customer a limited, non-exclusive, non-transferable, non-sublicensable license to access and use the Services during the Subscription term solely for Customer's internal business purposes.

## Plan

- Pay: $0
- You get: 300 credits
- Enough for: 300 calls
- Expires: 7 days

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.29 s

## The call

- You send: domain, mode "whois"
- Method: POST
- Path: /v1/sites/intel

## About the plan

- Plan: Free trial
- Who can get it: anyone with a payment card (a card is needed to start it)

## The 9 fields the plan's answer can hold

domain, registrar, created date, updated date, expiry date, nameservers, domain status, DNSSEC, WHOIS source

## Suprsonic's plans (7)

- [Suprsonic, free](https://datacircle.dev/domain-whois-apis/suprsonic/free/llms.txt): $0.00 per 1,000, 78% complete
- [Suprsonic, $29 monthly](https://datacircle.dev/domain-whois-apis/suprsonic/29-monthly/llms.txt): $14.50 per 1,000, 78% complete
- [Suprsonic, $99 monthly](https://datacircle.dev/domain-whois-apis/suprsonic/99-monthly/llms.txt): $12.375 per 1,000, 78% complete
- [Suprsonic, $249 monthly](https://datacircle.dev/domain-whois-apis/suprsonic/249-monthly/llms.txt): $10.375 per 1,000, 78% complete
- [Suprsonic, $599 monthly](https://datacircle.dev/domain-whois-apis/suprsonic/599-monthly/llms.txt): $7.487 per 1,000, 78% complete
- [Suprsonic, $1,199 monthly](https://datacircle.dev/domain-whois-apis/suprsonic/1199-monthly/llms.txt): $7.494 per 1,000, 78% complete
- [Suprsonic, contact us](https://datacircle.dev/domain-whois-apis/suprsonic/contact-us/llms.txt): 78% complete

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

- `POST /v1/sites/intel`: [Suprsonic, free](https://datacircle.dev/domain-whois-apis/suprsonic/free/llms.txt)

## Suprsonic's APIs (9)

- [Suprsonic: SERP API pricing, 7 plans](https://datacircle.dev/serp-apis/suprsonic/free/llms.txt)
- [Suprsonic: LinkedIn profile API pricing, 7 plans](https://datacircle.dev/linkedin-profile-apis/suprsonic/free/llms.txt)
- [Suprsonic: company enrichment API pricing, 7 plans](https://datacircle.dev/company-enrichment-apis/suprsonic/free/llms.txt)
- [Suprsonic: tech stack API pricing, 7 plans](https://datacircle.dev/company-technology-apis/suprsonic/free/llms.txt)
- [Suprsonic: domain WHOIS API pricing, 7 plans](https://datacircle.dev/domain-whois-apis/suprsonic/free/llms.txt)
- [Suprsonic: email verification API pricing, 7 plans](https://datacircle.dev/validate-email-apis/suprsonic/free/llms.txt)
- [Suprsonic: email finder API pricing, 7 plans](https://datacircle.dev/find-email-apis/suprsonic/free/llms.txt)
- [Suprsonic: web scraping API pricing, 7 plans, POST /v1/scrape, Scrape, fast](https://datacircle.dev/web-scraping-apis/suprsonic/free-trial-post-v1-scrape-scrape-fast/llms.txt)
- [Suprsonic: web scraping API pricing, 7 plans, POST /v1/scrape, Scrape, standard](https://datacircle.dev/web-scraping-apis/suprsonic/free-trial-post-v1-scrape-scrape-standard/llms.txt)
- [Suprsonic: web scraping API pricing, 7 plans, POST /v1/scrape, Scrape, thorough](https://datacircle.dev/web-scraping-apis/suprsonic/free-trial-post-v1-scrape-scrape-thorough/llms.txt)
- [Suprsonic: web search API pricing, 7 plans, POST /v1/search, Web Search, ai](https://datacircle.dev/web-search-apis/suprsonic/free-trial-post-v1-search-web-search-ai/llms.txt)
- [Suprsonic: web search API pricing, 7 plans, POST /v1/search, Web Search, deep](https://datacircle.dev/web-search-apis/suprsonic/free-trial-post-v1-search-web-search-deep/llms.txt)

## Suprsonic: domain WHOIS API alternatives

- [Whoxy, $1,530 pack](https://datacircle.dev/domain-whois-apis/whoxy/1530-pack/llms.txt): $6.12 per 1,000, 78% complete, live
- [IP2Location.io, $249 monthly](https://datacircle.dev/domain-whois-apis/ip2location-io/249-monthly/llms.txt): $6.225 per 1,000, 78% complete
- [ViewDNS.info, $2,299 yearly](https://datacircle.dev/domain-whois-apis/viewdns-info/2299-yearly/llms.txt): $7.663 per 1,000, 89% complete, live
- [ScrapeWhale, $49.90 pack](https://datacircle.dev/domain-whois-apis/scrapewhale/49-90-pack/llms.txt): $8.317 per 1,000, 78% complete, 7 days

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-05.

- https://suprsonic.ai/apis/profiles?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://suprsonic.ai/apis/site-intel?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://suprsonic.ai/docs/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://suprsonic.ai/plans?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://suprsonic.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://suprsonic.ai/v1/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing