BuiltWith is a web technology profiler tool that helps you find out what websites are built with.
Free version available, with paid plans starting at $295/month
Best WhoIsHostingThis Alternatives ranked by AI · updated Aug 2026
WhoIsHostingThis is a free online lookup service that reveals the hosting company behind a domain. It serves users researching hosting providers or checking where a website is hosted, with a simple host-detection workflow.
Top 6 WhoIsHostingThis alternatives
Wappalyzer is a browser extension that identifies the technologies used on websites. It detects content management systems, eCommerce platforms, web servers, JavaScript...
Hosting Checker is a free online service that identifies the hosting provider and infrastructure associated with a website. It is intended for...
Pros
- Provides fast domain-based hosting-provider lookups
- Requires no installation or account for basic checks
- Simpler and more focused than full technology-profiling platforms
Cons
- Offers less technology detail than BuiltWith or Wappalyzer
- Results can be inconclusive when sites use CDNs, proxies, or cloud infrastructure
- Lacks the monitoring and historical data available in enterprise tools
HostingChecker is a web-based lookup tool that identifies the hosting provider and network details associated with a domain. It is intended for...
Pros
- Fast browser-based hosting lookups
- Useful for checking unfamiliar domains
- No installation or account required for basic checks
Cons
- CDNs and reverse proxies can obscure the origin host
- Provides less historical and infrastructure data than specialized intelligence platforms
- Results may depend on current DNS and IP attribution
SecurityTrails offers a platform where you can search and monitor domain registrations, DNS records, IP history, and other cybersecurity-related data.
Pros
- Rich DNS and IP data
- Historical data tracking
Cons
- Focused more on DNS and IP data than domain investigations
Starting from $49/month
DNSlytics provides detailed information about domains, IP addresses, and more.
Pros
- Offers free basic functionality
- Provides historical data for domains
Cons
- Restricted features in free plan
- Paid plans can be expensive for casual users
Free and paid plans
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