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WhoisXML API: Pricing, Features & Alternatives

Domain, WHOIS, IP and DNS data APIs and research tools.

Overall Score57/100
3.8Editor Rating
Market Signal 43

Top-rated in Domain Monitoring#1 of 6 in Domain Monitoring by Overall Score

What Is WhoisXML API?

WhoisXML API offers domain, WHOIS, IP and DNS data feeds and APIs, plus research and monitoring tools.

Best for: Developers and analysts needing WHOIS and DNS data programmatically.

WhoisXML API exposes domain and infrastructure datasets as machine-readable services, so a team can query records as part of its own detection or enrichment pipeline instead of relying on a manual investigation screen. Different endpoints and feeds correspond to different data families; implementers must choose the specific WHOIS, DNS, IP or monitoring product needed for their workflow.

3.8
out of 5

Editor Rating

Calculated from facts we verified on WhoisXML API's own website, using published thresholds. Nobody can pay to change it. Together with Market Signal it makes the Overall Score of 57 that orders our lists.

  • Pricing transparency4.8
  • Entry cost5.0
  • Free access5.0
  • Platforms & API2.5
  • Support3.0
  • IntegrationsNot scored
  • Security & compliance3.0

Dimensions without verified data count as a neutral 2.5. Facts checked October 6, 2026. How the rating works

43
Moderate

Market Signal

Real data

Computed from Ahrefs + Semrush data about WhoisXML API's own website. Not an assessment of the product itself. How this works →

Market Strength

43

Where it stands today

Momentum

44 Declining ↓↓

Where it’s heading

Data Confidence

Medium

How much to trust it

  • Traffic Strength
    41
  • Search Visibility
    55
  • Authority
    38
  • Brand & Market Presence
    30

Tick mark = category average.

Compared with 22 tracked Domains & DNS tools. Data through September 2026, pulled October 6, 2026.

Who Is It Best For?

  • Security teams enriching alerts with ownership data
  • Developers integrating domain intelligence into internal software
  • Fraud analysts reviewing newly registered infrastructure

Who Should Avoid It?

  • Companies needing a marketplace for domain purchases

Use Cases

  • Enrich suspicious domains through an API
  • Compare domain registration records
  • Examine DNS infrastructure
  • Feed risk checks into security workflows

WhoisXML API Features

  • WHOIS API
  • DNS data feeds
  • Domain intelligence APIs
  • Domain monitoring
  • IP intelligence

WhoisXML API Pricing

PlanMonthlyAnnual (mo)Includes
2,000 queries/month$30Not listed
  • Priced per month / queries
EnterpriseCustomCustom

    Pricing shown reflects list prices as of our last check and may have changed. Confirm current pricing on WhoisXML API's website before purchasing.

    WhoisXML API Integrations

    No major integrations documented.

    Customer Support

    Email, Help center

    WhoisXML API at a Glance

    Built for
    Small Business, Mid-Market, Enterprise
    Platforms
    Web, API
    Languages
    English, Portuguese, Japanese, Chinese, French, Spanish

    WhoisXML API Alternatives

    More tools like WhoisXML API

    • ZeroFox logo
      ZeroFox

      External cybersecurity platform, HNTR, that detects domain abuse and impersonation and runs takedowns.

    • Bolster AI logo
      Bolster AI

      AI brand protection platform that finds lookalike domains and fake apps and automates takedowns.

    • Red Points

      Managed AI brand protection service removing counterfeits, fake websites, infringing domains and pirated content.

    Frequently Asked Questions

    Does WhoisXML API have a free trial or free plan?⌄

    WhoisXML API offers a free plan, though it doesn't offer a separate free trial of paid tiers.

    How much does WhoisXML API cost?⌄

    WhoisXML API starts at $30/mo (varies by queries). Pricing was last checked September 28, 2026. Always confirm current pricing on the vendor's site before purchasing.

    What are the best alternatives to WhoisXML API?⌄

    Commonly considered alternatives include ExpiredDomains.net, DomainTools and SecurityTrails. The Alternatives section on this page shows what each one is best at and its starting price.

    Last updated: October 6, 2026Details checked: October 5, 2026Pricing checked: September 28, 2026