Hosting Checker
Find the IP address, name servers, reverse DNS, and server details for any domain.
What Hosting Checker Reveals
Quickly discover the server infrastructure behind any domain.
IP Address Resolution
Resolve both IPv4 and IPv6 addresses for any domain to identify the server hosting the website.
Reverse DNS Lookup
Perform a PTR record lookup on the IP address to find the hostname associated with the server.
Name Server Detection
List all authoritative name servers to identify the DNS provider (e.g. Cloudflare, AWS Route 53, Google DNS).
Response Time
Measure DNS resolution speed to assess how quickly the domain's DNS infrastructure responds to queries.
How It Works
Three simple steps to find hosting details for any domain.
Enter Domain
Type the domain name you want to look up. No need to include https:// or www — just the bare domain.
Query DNS
Our server performs multiple DNS queries including A, AAAA, NS, and PTR record lookups simultaneously.
View Results
See the IP addresses, reverse DNS, name servers, and response time all in one clean overview.
Related Tools
More tools for investigating domains and web infrastructure.
Frequently Asked Questions
Common questions about hosting, IP addresses, and DNS.
Start by resolving the domain's IP address, which this tool does. Then check the reverse DNS (PTR record) — it often reveals the hosting provider's name (e.g. server.hostingcompany.com). Name servers also indicate the DNS provider, which is often the same as the hosting provider. For more detail, you can look up the IP address in a WHOIS database to find the network owner.
IPv4 uses 32-bit addresses (e.g. 192.168.1.1) and supports about 4.3 billion unique addresses — a pool that has been exhausted. IPv6 uses 128-bit addresses (e.g. 2001:db8::1) and supports a virtually unlimited number. Many modern websites serve content over both protocols to ensure compatibility and future-readiness.
Reverse DNS (rDNS) maps an IP address back to a hostname via PTR records. It is used for email authentication (many mail servers reject messages from IPs without valid rDNS), network troubleshooting, and security logging. A missing or misconfigured PTR record can indicate a poorly configured server.
Name servers are the DNS servers that hold the authoritative DNS records for a domain. They tell you where the domain's DNS is managed. Common providers include Cloudflare (e.g. ns1.cloudflare.com), AWS Route 53 (e.g. ns-123.awsdns-45.com), and Google Cloud DNS. Knowing the name servers helps diagnose DNS issues and understand the domain's infrastructure.