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Head-to-head · WHOIS Lookup Tools

WhoisJSON API vs WhoisFreaks WHOIS API

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score WhoisJSON API #4 in WHOIS Lookup Tools 8.8/10 Free plan Free plan✓ 0 of 3 features Visit WhoisJSON

WhoisJSON API leads on 2 checks, WhoisFreaks WHOIS API on 0, and 3 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWhoisJSON API · 8.8/10
  • Lowest starting priceWhoisJSON API · $10/mo
  • Free planonly WhoisJSON API
  • Most featuresWhoisFreaks WHOIS API · 3 of 3

WhoisJSON API scores higher on our rubric for whois lookup tools: 8.8 against 8.6 out of 10; our editors rank them #4 and #5.

WhoisJSON API offers free plan; WhoisFreaks WHOIS API doesn't. WhoisJSON API is cheaper to start at $10/mo against $63/mo.

WhoisJSON API is the better fit for API users needing WHOIS plus domain intelligence. WhoisFreaks WHOIS API is the better fit for high-volume WHOIS intelligence teams.

  • WhoisJSON API fits best

    API users needing WHOIS plus domain intelligence

  • WhoisFreaks WHOIS API fits best

    High-volume WHOIS intelligence teams

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature WhoisJSON API 8.8/10 Visit ↗ WhoisFreaks WHOIS API 8.6/10 Visit ↗
At a glance
Editor score 8.8 8.6
Ranking #4 in WHOIS Lookup Tools #5 in WHOIS Lookup Tools
Best for API users needing WHOIS plus domain intelligence High-volume WHOIS intelligence teams
Pricing model Free plan + paid Paid
Starting price $10/mo (best) $63/mo
Free plan ✓ (best) —
Free trial — —
Deployment Cloud Cloud
Support Docs Email, Docs
Compliance GDPR GDPR
Integrations 6 integrations 16 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features WhoisJSON API 0/3 · WhoisFreaks WHOIS API 3/3
Bulk lookup Not checked yet ✓ (best)
Historical WHOIS Not checked yet ✓ (best)
RDAP support Not checked yet ✓ (best)
Specs
API access Not checked yet Full
Monthly lookup limit Not checked yet 50000 /mo
Export formats Not checked yet JSON, XML, CSV
Our review
Pros
  • Combines WHOIS, DNS, SSL, availability, and monitoring endpoints
  • Adds subdomain discovery and email-domain signup risk scoring
  • Supports JSON output with integrations for PHP, Python, and Node.js
  • Live, historical, reverse, and RDAP WHOIS lookups
  • Bulk API requests for up to 100 domains
  • File processing for domain lists up to 3 million domains
Cons
  • It is an API service rather than a conventional API client
  • XML support is limited to qualifying plans
  • Higher-volume access requires moving through multiple paid tiers
  • Starts at $63 per month billed annually
  • No unlimited free plan
  • Advanced capabilities require API-based workflows
Our verdict

WhoisJSON API is a hosted REST API for developers and businesses that need structured domain intelligence. Its endpoints cover WHOIS and RDAP registration lookups, DNS record resolution, SSL/TLS certificate validation, real-time domain…

Read the review →

WhoisFreaks WHOIS API provides structured domain-registration data for developers, cybersecurity teams, threat intelligence workflows, researchers, brand protection, due diligence, and domain portfolio analysis. Its API returns registrar,…

Read the review →
  1. WhoisJSON APIWHOIS Lookup Tools 8.8Free plan
  2. WhoisFreaks WHOIS APIWHOIS Lookup Tools 8.6Paid

Strengths and trade-offs

  • WhoisJSON API — where it wins

    • Combines WHOIS, DNS, SSL, availability, and monitoring endpoints
    • Adds subdomain discovery and email-domain signup risk scoring
    • Supports JSON output with integrations for PHP, Python, and Node.js

    Where it doesn't

    • It is an API service rather than a conventional API client
    • XML support is limited to qualifying plans
    • Higher-volume access requires moving through multiple paid tiers
  • WhoisFreaks WHOIS API — where it wins

    • Live, historical, reverse, and RDAP WHOIS lookups
    • Bulk API requests for up to 100 domains
    • File processing for domain lists up to 3 million domains

    Where it doesn't

    • Starts at $63 per month billed annually
    • No unlimited free plan
    • Advanced capabilities require API-based workflows

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update