Whois Lookup, Domain Availability & IP Search - DomainTools
Depends
Confidence: Low
Use the free Whois lookup for occasional domain checks . it works and costs nothing.
Comparison
Whois Lookup, Domain Availability & IP Search - DomainTools vs Who.is
Whois Lookup, Domain Availability & IP Search - DomainTools lands on Depends, and Who.is lands on Worth it.
Who.is
Worth it
Confidence: Low
Reviewed sources were mostly irrelevant (Doctor Who and World Health Organization content), so confidence is low and this leans on general category knowledge.
| Compare | Whois Lookup, Domain Availability & IP Search - DomainTools | Who.is |
|---|---|---|
| Verdict | Depends | Worth it |
| Best for | OSINT and threat-intel investigators | Buyers checking domain availability |
| Who it's not for | Casual users wanting one-off lookups . free registrars and ICANN lookup suffice | Bulk domain portfolio monitoring |
| Privacy | No known public vulnerabilities found in the sources reviewed.⁵ | No known public vulnerabilities found in the sources reviewed.⁹ |
| Support quality | No support evidence found | No usable evidence in reviewed sources |
| Public sentiment | Cited widely as a go-to OSINT and Whois resource, but the sources contain no substantive independent reviews.⁶ | No credible user reviews of surfaced; search results returned unrelated Doctor Who and World Health Organization content. |
Pick Whois Lookup, Domain Availability & IP Search - DomainTools when
- OSINT and threat-intel investigators
- Security teams tracing domain infrastructure
- Buyers vetting domain ownership and availability
When Whois Lookup, Domain Availability & IP Search - DomainTools is not a fit
- Casual users wanting one-off lookups . free registrars and ICANN lookup suffice
- Teams wanting transparent, self-serve pricing
- Anyone expecting a public security page . none found
Pick Who.is when
- Buyers checking domain availability
- Quick WHOIS/DNS/IP lookups
- Developers debugging DNS records
When Who.is is not a fit
- Bulk domain portfolio monitoring
- Threat-intel teams needing enriched or historical WHOIS
- Enterprises needing SLA-backed API contracts
- Compliance workflows needing audited data provenance
Sources
- Whois Lookup, Domain Availability & IP Search - DomainToolswhois.domaintools.comofficial
- Threat Intelligence & Domain Security Platform | DomainToolsdomaintools.comofficial
- DomainTools WHOIS | DomainTools Technical Documentationdocs.domaintools.comofficial
- DomainTools Domain Search | DomainTools Technical Documentationdocs.domaintools.comofficial
- Research DomainTools Security pageresearch.domaintools.comsecurity
review
review
- Whois Lookup, Domain Availability & IP Search - Hosting Ratedhostingrated.comreview
- Product security pagewho.isofficial