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New check

Comparison

WhoisXML API vs WhoisJSON

WhoisXML API lands on Depends, and WhoisJSON lands on Worth it.

WhoisXML API versus WhoisJSON
CompareWhoisXML APIWhoisJSON
VerdictDependsWorth it
Best forSecurity & threat intel teamsDevelopers building domain checks
Who it's not forNon-technical buyers; it is raw APIs, not an appNon-technical buyers . it's a raw API, no GUI
PrivacyNo known public vulnerabilities found in the sources reviewed.No known public vulnerabilities found in the sources reviewed.
Support qualityOnly quote-request flows and success stories, no reviewsNo support evidence in sources
Public sentimentIndependent reviews are sparse (7 on G2), while Quora and Reddit threads show users hunting for cheaper or simpler alternatives for reverse WHOIS and high-volume access.⁴Independent coverage is thin, but a Reddit developer praised the free tier while building a domain monitoring tool on it.
Biggest gotchaEach API is priced separately; multi-API stacks mean multiple subscriptions and bills²1,000 free calls/month disappears fast in production; growth pushes you to paid plans16

Pick WhoisXML API when

  • Security & threat intel teams
  • Anti-fraud and brand-protection investigators
  • Developers building on domain data
  • Law enforcement and OSINT work

When WhoisXML API is not a fit

  • Non-technical buyers; it is raw APIs, not an app
  • People doing occasional manual lookups . free whois suffices
  • Small teams without developers to integrate
  • Anyone wanting a turnkey UI dashboard product

Pick WhoisJSON when

  • Developers building domain checks
  • Fraud and phishing investigation
  • Domain portfolio monitoring
  • AI agent workflows via MCP

When WhoisJSON is not a fit

  • Non-technical buyers . it's a raw API, no GUI
  • Enterprises needing DomainTools-grade threat intel
  • One-off lookups . free whois/DNS tools already exist
  • Guess: teams requiring SLAs or compliance attestations

Sources

  1. WhoisXML API homepagewhoisxmlapi.com
    official
  2. WHOIS API Pricingwhois.whoisxmlapi.com
    official
  3. Enterprise API Packagesmain.whoisxmlapi.com
    official
  4. Whoisxmlapi G2 seller reviewsg2.com
    review
  5. WhoisXML API Review: Pricing & API Features (Domscan)domscan.net
    review
  6. WhoisXML API Alternative: Why Developers Switch (WhoisJSON)whoisjson.com
    review
  7. Quora: alternative for reverse WHOIS lookupsquora.com
    review
  8. Reddit r/Domains: high-volume whois accessreddit.com
    review
  9. Nudge Security profilenudgesecurity.com
    security
  10. WhoisXML API Security Centersecurity.whoisxmlapi.com
    security
  11. Response to Log4j vulnerabilitymain.whoisxmlapi.com
    security
  12. Maltego Transform Hub: WhoisXMLmaltego.com
    official
  13. GetLatka revenue estimategetlatka.com
    news
  14. WhoisJSON homepagewhoisjson.com
    official
  15. WhoisJSON pricingwhoisjson.com
    official
  16. Free WHOIS API . 1,000 monthly requestswhoisjson.com
    official