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Head-to-head · Reverse WHOIS Search Tools

Whoisology vs DNS Checker Reverse WHOIS

  • Updated Oct 2026
  • Both researched from official sources
  • 8 checks side by side
Higher score Whoisology #3 in Reverse WHOIS Search Tools 9.0/10 Free plan Free plan✓ 5 of 6 features Visit Whoisology
DNS Checker Reverse WHOIS #7 in Reverse WHOIS Search Tools 8.5/10 Free plan Free plan✓ 4 of 6 features Visit DNS Checker

Whoisology leads on 3 checks, DNS Checker Reverse WHOIS on 0, and 5 are even. Who comes out ahead on the 8 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreWhoisology · 9.0/10
  • Free planboth
  • Most featuresWhoisology · 5 of 6

Whoisology scores higher on our rubric for reverse whois search tools: 9.0 against 8.5 out of 10; our editors rank them #3 and #7.

Whoisology offers historical records; DNS Checker Reverse WHOIS doesn't. Whoisology offers bulk search; DNS Checker Reverse WHOIS doesn't. Whoisology leads on result limit: 1000 results versus 100 results.

Whoisology is the better fit for researchers needing historical ownership exploration. DNS Checker Reverse WHOIS is the better fit for budget-conscious users needing broad coverage.

  • Whoisology fits best

    Researchers needing historical ownership exploration

  • DNS Checker Reverse WHOIS fits best

    Budget-conscious users needing broad coverage

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Side by side

Feature Whoisology 9.0/10 Visit ↗ DNS Checker Reverse WHOIS 8.5/10 Visit ↗
At a glance
Editor score 9.0 8.5
Ranking #3 in Reverse WHOIS Search Tools #7 in Reverse WHOIS Search Tools
Best for Researchers needing historical ownership exploration Budget-conscious users needing broad coverage
Pricing model Free plan + paid Free plan + paid
Starting price $300/yr $19/mo
Free plan ✓ ✓
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Email Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Whoisology 5/6 · DNS Checker Reverse WHOIS 4/6
Person/name search ✓ ✓
Organization search Not checked yet ✓ (best)
Email search ✓ ✓
Historical records ✓ (best) —
Bulk search ✓ (best) —
API access ✓ ✓
Specs
Result limit 1000 results (best) 100 results
Our review
Pros
  • Free access includes reverse and historical WHOIS research
  • Connected-domain exploration links domains through WHOIS fields
  • Paid plans add reports, bulk search, and API credits
  • Covers more than 184 million domains across 1,200+ TLDs
  • Searches by registrar, nameserver, TLD, and date range
  • Paid plans include API access, CSV exports, and data exports
Cons
  • Visitor access is limited to a number of results per day
  • Advanced historical access requires a paid membership
  • Higher report and API allowances are reserved for pricier tiers
  • Free plan is limited to 50 daily lookups
  • Reverse WHOIS is listed among paid-plan tools
  • Registrant filters require Plus or Pro
Our verdict

Whoisology is a web-based reverse WHOIS and domain ownership archive for researchers investigating domains, organizations, and historical ownership connections. Its searches can use domain terms and WHOIS fields, including person and email…

Read the review →

DNS Checker Reverse WHOIS is a web and API service for finding domain records by registrar, nameserver provider, top-level domain, and creation or expiry date ranges. It is suited to domain portfolio discovery, brand monitoring,…

Read the review →
  1. WhoisologyReverse WHOIS Search Tools 9.0Free plan
  2. DNS Checker Reverse WHOISReverse WHOIS Search Tools 8.5Free plan

Strengths and trade-offs

  • Whoisology — where it wins

    • Free access includes reverse and historical WHOIS research
    • Connected-domain exploration links domains through WHOIS fields
    • Paid plans add reports, bulk search, and API credits

    Where it doesn't

    • Visitor access is limited to a number of results per day
    • Advanced historical access requires a paid membership
    • Higher report and API allowances are reserved for pricier tiers

  • DNS Checker Reverse WHOIS — where it wins

    • Covers more than 184 million domains across 1,200+ TLDs
    • Searches by registrar, nameserver, TLD, and date range
    • Paid plans include API access, CSV exports, and data exports

    Where it doesn't

    • Free plan is limited to 50 daily lookups
    • Reverse WHOIS is listed among paid-plan tools
    • Registrant filters require Plus or Pro

More comparisons

All reverse WHOIS search tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update