Hostname to IP Lookup
Resolve a domain name or hostname to its IP address in real time. Uses live DNS resolution from our servers - Useful for checking what IP a hostname currently points to.
How Hostname Resolution Works
When you type a domain name into your browser, your operating system queries a DNS (Domain Name System) resolver to translate that name into an IP address. This process is called forward DNS resolution. Not sure of the terminology? See our FAQ on what a hostname is and our full guide to what DNS is.
| Step | What Happens |
|---|---|
| 1 | Your device queries its configured DNS resolver (usually your ISP's or a public resolver like 8.8.8.8) |
| 2 | The resolver checks its cache for a recent answer |
| 3 | If not cached, it queries the authoritative nameservers for the domain |
| 4 | The A or AAAA record (IP address) is returned and cached for its TTL duration |
Hostname vs IP Address
| Hostname | IP Address | |
|---|---|---|
| Example | example.com | 93.184.216.34 |
| Human readable | Yes | No |
| Can change over time | Points to different IPs | Static unless changed |
| Used for | Web browsing, email | Network routing, direct connections |
Other DNS Record Types
Hostname resolution uses A and AAAA records, but DNS supports many more record types - MX for email routing, TXT for SPF and DKIM, CNAME for aliases, NS for delegation, and PTR for reverse lookups. For a full record-type reference and to query any of them directly, see our DNS Lookup tool.
Average DNS Resolution Time by Region
Measured from a resolver with warm cache to the authoritative nameserver
Figures are illustrative estimates for educational purposes, not measured data.
Questions about Hostname Lookup
A domain name (like example.com) identifies a zone in the DNS hierarchy. A hostname is any fully qualified name that resolves to an IP address - Including subdomains like www.example.com or mail.example.com. Every hostname is within a domain, but not every domain name is a hostname.
Many services use multiple A records for the same hostname (round-robin DNS) to distribute traffic across servers. Large services like Google or Cloudflare return different IPs depending on your location and load conditions - This is called Anycast or GeoDNS.
TTL (Time To Live) is the number of seconds a DNS answer can be cached by resolvers before they must fetch a fresh result from the authoritative server. A TTL of 300 means resolvers cache the answer for 5 minutes. Lower TTLs allow faster updates; higher TTLs reduce DNS query load.
Yes. This tool queries DNS in real time from our servers. If you recently changed an A record, run a lookup here to see the current result from our vantage point. Remember that propagation time varies - Old results can persist in caches until their TTL expires.
Tools related to Hostname Lookup
Technical sources for Hostname Lookup
The technical claims on this page are drawn from the primary specifications and vendor documentation below.