host.tools

DNS lookup (dig)

DNS /api/v1/dns/lookup

Query A, AAAA, MX, TXT, CNAME, NS, SOA, SRV, CAA, PTR — all types at once.

Try: host.com checkhost.com hostinfo.com hostcheck.com google.com
Related: DNS lookup (dig) DNS propagation Domain WHOIS SSL certificate inspector HTTP headers Security headers grader MX lookup SPF tester DMARC tester
Host
bsim.app
Total time
189 ms
Source
live
Records found
5
A 1 record
27 ms
TTLTypeAnswer
300s A 1.1.1.1
MX 1 record
6 ms
TTLTypeAnswer
300s MX 0 bsim.app
NS 2 records
5 ms
TTLTypeAnswer
86400s NS aragorn.ns.cloudflare.com
86400s NS megan.ns.cloudflare.com
SOA 1 record
18 ms
TTLTypeAnswer
1800s SOA aragorn.ns.cloudflare.com dns.cloudflare.com 2402260292
Raw JSON / API equivalent
JSON endpoint
/api/v1/dns/lookup?q=bsim.app 
{
    "ok": true,
    "slug": "dns/lookup",
    "title": "DNS lookup (dig)",
    "ms": 189,
    "data": {
        "host": "bsim.app",
        "types": {
            "A": {
                "ms": 27,
                "count": 1,
                "records": [
                    {
                        "type": "A",
                        "ttl": 300,
                        "host": "bsim.app",
                        "answer": "1.1.1.1"
                    }
                ]
            },
            "AAAA": {
                "ms": 36,
                "count": 0,
                "records": []
            },
            "MX": {
                "ms": 6,
                "count": 1,
                "records": [
                    {
                        "type": "MX",
                        "ttl": 300,
                        "host": "bsim.app",
                        "answer": "0 bsim.app",
                        "priority": 0,
                        "target": "bsim.app"
                    }
                ]
            },
            "TXT": {
                "ms": 30,
                "count": 0,
                "records": []
            },
            "CNAME": {
                "ms": 14,
                "count": 0,
                "records": []
            },
            "NS": {
                "ms": 5,
                "count": 2,
                "records": [
                    {
                        "type": "NS",
                        "ttl": 86400,
                        "host": "bsim.app",
                        "answer": "aragorn.ns.cloudflare.com"
                    },
                    {
                        "type": "NS",
                        "ttl": 86400,
                        "host": "bsim.app",
                        "answer": "megan.ns.cloudflare.com"
                    }
                ]
            },
            "SOA": {
                "ms": 18,
                "count": 1,
                "records": [
                    {
                        "type": "SOA",
                        "ttl": 1800,
                        "host": "bsim.app",
                        "answer": "aragorn.ns.cloudflare.com dns.cloudflare.com 2402260292",
                        "mname": "aragorn.ns.cloudflare.com",
                        "rname": "dns.cloudflare.com",
                        "serial": 2402260292,
                        "refresh": 10000,
                        "retry": 2400,
                        "expire": 604800,
                        "min_ttl": 1800
                    }
                ]
            },
            "SRV": {
                "ms": 11,
                "count": 0,
                "records": []
            },
            "PTR": {
                "ms": 28,
                "count": 0,
                "records": []
            },
            "CAA": {
                "ms": 13,
                "count": 0,
                "records": []
            }
        },
        "ms": 189
    },
    "source": "live",
    "meta": []
}
How to use DNS lookup (dig)
  1. 1
    Paste your input

    Enter the value at the top — domain, IP, URL, email, ASN, hash, whatever fits this tool. The smart input auto-detects type.

  2. 2
    Click "Inspect"

    host.tools issues real probes (DNS, HTTP, TCP, TLS, WHOIS where applicable) and renders the result in milliseconds.

  3. 3
    Open the API tab

    Every web tool has a sibling /api/v1/dns/lookup JSON endpoint with the same payload. One copy-as-curl click and you're scripting it.

Why this matters

DNS is the routing layer for everything you do on the internet. A bad TTL, a missing MX or an unsigned zone propagates outages and inboxes-full-of-spam in minutes. Verify before you ship.

API equivalent
/api/v1/dns/lookup?q=bsim.app 
curl -s '/api/v1/dns/lookup?q=bsim.app'
Embed this tool
<iframe src="/dns/lookup?q={INPUT}&embed=1"
  width="100%" height="600" frameborder="0"></iframe>

Drop into any HTML page. The embed=1 flag hides nav and footer.

FAQ · DNS lookup (dig)

Common questions

Is DNS lookup (dig) free?
Yes — every tool is free on the web with a 200/hour rate limit per IP. The matching API endpoint /api/v1/dns/lookup is free up to 100 requests/hour, no key required.
Where does the data come from?
Real-time probes against authoritative sources (DNS root, RIRs, registries, the target server itself), plus partner data feeds from hostinfo.com (GeoIP/ASN) and hostcheck.com (reputation).
How fresh are the results?
Live by default. Cached for 5 minutes to make repeat queries instant; pass ?nocache=1 for a forced refresh.
Can I run this from the command line?
Yes — every tool ships with a copy-as-curl. There's also an official CLI: host.tools dns lookup YOUR_INPUT.
Can I monitor results over time?
Pro tier lets you schedule any tool to run every 1/5/15/60 min and alert on diff. See monitors.
host.tools Pro

Run DNS lookup (dig) on a schedule. Get pinged when it changes.

Pro gets you bulk lookups, monitors, webhook alerts, history, exports and 10,000 API calls/day. $19/mo.

See pricing Tour monitors
  • ✓Schedule any tool — every 1, 5, 15, 60 min
  • ✓Diff against last run, alert on change
  • ✓Webhook + email + Slack + PagerDuty + OpsGenie
  • ✓Bulk CSV upload, 1,000 inputs per job
  • ✓Export results as CSV / NDJSON / Excel
  • ✓90-day history, comparison view