# 18 DC5 WHOIS alternatives in 2026

Last updated: November 11, 2026.

The best DC5 WHOIS alternatives for IP company lookup APIs: IPKit, thenetworkery and MxToolbox, by our benchmark of November 10, 2026. DC5 WHOIS's website is whois.dc5.tech.

## IP company lookup API alternatives

[DC5 WHOIS](https://datacircle.dev/ip-company-lookup-apis/dc5-whois/free-public-instance-get-api-v1-lookup) is #3 of the 61 providers we rank. Every provider of this API, ranked: [IP company lookup API: best providers in 2026](https://datacircle.dev/best-ip-company-lookup-api)

1. [IPKit, free](https://datacircle.dev/ip-company-lookup-apis/ipkit/free): Overall score 94.1, Accuracy score 96, $0.00 per 1,000 IP addresses
2. [thenetworkery, free](https://datacircle.dev/ip-company-lookup-apis/thenetworkery/free): Overall score 90.8, Accuracy score 100, $0.00 per 1,000 IP addresses
4. [MxToolbox, free](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-asn): Overall score 86.3, Accuracy score 73, $0.00 per 1,000 IP addresses
5. [Enterno, free, Open API](https://datacircle.dev/ip-company-lookup-apis/enterno/free-scout-get-api-v4-asn#free-open-api-get-api-open-ip): Overall score 82.2, Accuracy score 75, $0.00 per 1,000 IP addresses
6. [heade.rs, free](https://datacircle.dev/ip-company-lookup-apis/heade-rs/free): Overall score 81.9, Accuracy score 99, $0.00 per 1,000 IP addresses
7. [ip.guide, free](https://datacircle.dev/ip-company-lookup-apis/ip-guide/free): Overall score 81.8, Accuracy score 75, $0.00 per 1,000 IP addresses
8. [DNSlytics, free](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free): Overall score 80.9, Accuracy score 73, $0.00 per 1,000 IP addresses
9. [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free): Overall score 80.5, Accuracy score 71, $0.00 per 1,000 IP addresses
10. [IPBot, free, Anonymous](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip): Overall score 79.8, Accuracy score 88, $0.00 per 1,000 IP addresses
11. [IPLocate, $499 monthly, 5,000,000 requests per month](https://datacircle.dev/ip-company-lookup-apis/iplocate/free#499-monthly-5000000-requests-per-month-get-lookup-ip): Overall score 79.3, Accuracy score 100, $0.10 per 1,000 IP addresses

## Domain WHOIS API alternatives

[DC5 WHOIS](https://datacircle.dev/domain-whois-apis/dc5-whois/free-public-instance-get-api-v1-domain) is #4 of the 38 providers we rank. Every provider of this API, ranked: [Domain WHOIS API: best providers in 2026](https://datacircle.dev/best-domain-whois-api)

1. [thenetworkery, free](https://datacircle.dev/domain-whois-apis/thenetworkery/free): Overall score 95.5, Accuracy score 97, $0.00 per 1,000 domains
2. [FluentEDI, free](https://datacircle.dev/domain-whois-apis/fluentedi/free): Overall score 92.5, Accuracy score 86, $0.00 per 1,000 domains
3. [DomainDetails, €9.99 monthly, Alerts](https://datacircle.dev/domain-whois-apis/domaindetails/free-get-api-rdap#9-99-monthly-alerts-get-api-rdap): Overall score 90.6, Accuracy score 99, $0 extra per 1,000. The €9.99 monthly price covers any number of domains.
5. [WhoisJSON, $120 monthly](https://datacircle.dev/domain-whois-apis/whoisjson/free#120-monthly): Overall score 89.1, Accuracy score 99, $0.014 per 1,000 domains
6. [Enterno, free, Open API](https://datacircle.dev/domain-whois-apis/enterno/free-scout#free-open-api): Overall score 88.1, Accuracy score 89, $0.00 per 1,000 domains
7. [IPAddress.to, free](https://datacircle.dev/domain-whois-apis/ipaddress-to/free): Overall score 83.8, Accuracy score 97, $0.00 per 1,000 domains
8. [StableDomains, free](https://datacircle.dev/domain-whois-apis/stabledomains/free): Overall score 83.3, Accuracy score 87, $0.00 per 1,000 domains
9. [Robtex, free](https://datacircle.dev/domain-whois-apis/robtex/free): Overall score 83.2, Accuracy score 71, $0.00 per 1,000 domains
10. [FernTool, free](https://datacircle.dev/domain-whois-apis/ferntool/free): Overall score 83.1, Accuracy score 87, $0.00 per 1,000 domains
11. [Agent Toolbox, free](https://datacircle.dev/domain-whois-apis/agent-toolbox/free): Overall score 81.2, Accuracy score 81, $0.00 per 1,000 domains

## See also

- [IPKit alternatives](https://datacircle.dev/ipkit-alternatives)
- [thenetworkery alternatives](https://datacircle.dev/thenetworkery-alternatives)
- [MxToolbox alternatives](https://datacircle.dev/mxtoolbox-alternatives)
- [Enterno alternatives](https://datacircle.dev/enterno-alternatives)
- [heade.rs alternatives](https://datacircle.dev/heade-rs-alternatives)
- [ip.guide alternatives](https://datacircle.dev/ip-guide-alternatives)
- [DNSlytics alternatives](https://datacircle.dev/dnslytics-alternatives)
- [ipwhois.io alternatives](https://datacircle.dev/ipwhois-io-alternatives)
- [DC5 WHOIS vs IPKit](https://datacircle.dev/dc5-whois-vs-ipkit)
- [DC5 WHOIS vs thenetworkery](https://datacircle.dev/dc5-whois-vs-thenetworkery)
- [DC5 WHOIS vs MxToolbox](https://datacircle.dev/dc5-whois-vs-mxtoolbox)