WhoisXML API Reverse WHOIS vs DNS Checker Reverse WHOIS

WhoisXML API Reverse WHOIS9.4Visit DNS Checker Reverse WHOIS8.5Visit

Higher score WhoisXML API Reverse WHOIS #1 in Reverse WHOIS Search Tools 9.4/10 Free plan Free plan✓ 6 of 6 features Visit WhoisXML API

vs

DNS Checker Reverse WHOIS #7 in Reverse WHOIS Search Tools 8.5/10 Free plan Free plan✓ 4 of 6 features Visit DNS Checker

• WhoisXML API Reverse WHOIS fits best

  Broad, flexible reverse-WHOIS investigations

• DNS Checker Reverse WHOIS fits best

  Budget-conscious users needing broad coverage

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Side by side

Feature	WhoisXML API Reverse WHOIS 9.4/10 Visit ↗	DNS Checker Reverse WHOIS 8.5/10 Visit ↗
At a glance
Editor score	9.4	8.5
Ranking	#1 in Reverse WHOIS Search Tools	#7 in Reverse WHOIS Search Tools
Best for	Broad, flexible reverse-WHOIS investigations	Budget-conscious users needing broad coverage
Pricing model	Free plan + paid	Free plan + paid
Starting price	Free plan	$19/mo
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Support	Docs	Docs
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market
Features WhoisXML API Reverse WHOIS 6/6 · DNS Checker Reverse WHOIS 4/6
Person/name search	✓	✓
Organization search	✓	✓
Email search	✓	✓
Historical records	✓ (best)	—
Bulk search	✓ (best)	—
API access	✓	✓
Specs
Result limit	10000 results (best)	100 results
Our review
Pros	Searches names, organizations, emails, phones, and postal addresses Combines historical records, date filters, and exact or fuzzy matching Supports REST API access, JSON/XML output, and pagination beyond 10,000 records	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	Search requests allow up to four included and four excluded terms Paid usage follows a DRS-credit model with one credit per request Its focus is WHOIS-linked domain discovery rather than broader investigation workflows	Free plan is limited to 50 daily lookups Reverse WHOIS is listed among paid-plan tools Registrant filters require Plus or Pro
Our verdict	WhoisXML API Reverse WHOIS searches WHOIS records to find domains connected to owner names, organization names, email addresses, phone numbers, or postal addresses. It supports both current and historical records, making it relevant to… 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 →

Strengths and trade-offs

• WhoisXML API Reverse WHOIS — where it wins

  • Searches names, organizations, emails, phones, and postal addresses
  • Combines historical records, date filters, and exact or fuzzy matching
  • Supports REST API access, JSON/XML output, and pagination beyond 10,000 records

  Where it doesn't

  • Search requests allow up to four included and four excluded terms
  • Paid usage follows a DRS-credit model with one credit per request
  • Its focus is WHOIS-linked domain discovery rather than broader investigation workflows

• 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

• WhoisXML API Reverse WHOIS9.4/10 · Free plan

  A flexible reverse-WHOIS service for current, historical, and large-scale domain investigations.

  Visit WhoisXML APIFull verdict →
• DNS Checker Reverse WHOIS8.5/10 · Free plan

  Broad reverse WHOIS coverage with a free plan and paid API access.

  Visit DNS CheckerFull verdict →