Logo
Resolve
Install
Live DNS engine — 2,847 queries in the last 60 seconds

Crack open the
invisible routing layer

Real-time DNS interrogation. Every A record, MX entry, CNAME chain, and propagation delay — exposed in milliseconds.

Filter record types
TYPE
VALUE
TTL
LATENCY

Enter a domain and press Resolve

< 18ms
Avg Response
127 PoPs
Global Nodes
14 types
Record Types
Scroll to explore capabilities
Global Propagation

Watch your DNS changes
travel the world

127 vantage points across 6 continents. Watch propagation ripple outward from your authoritative nameserver in real time.

propagated
pending
stale
Checking: cloudflare.comA record

Propagation Status

Propagated9/12
Pending2/12
Stale1/12

TTL Expiry

00:04:32
until next refresh cycle
TTL: 300s72% elapsed

Regional Coverage

North America
3 nodes
Europe
3 nodes
Asia Pacific
3 nodes
South America
1 nodes
Africa
1 nodes
127
nodes
Global PoPs
< 4
minutes
Avg Propagation
2.4M
resolved
Queries Today
99.99
%
Uptime
Record Types & Bulk Lookup

Every record type,
one interface

Query all 14 DNS record types simultaneously. Export results as JSON, CSV, or pipe directly to your monitoring stack.

Record Type Explorer

A

Address Record

Maps a hostname to an IPv4 address. The most fundamental DNS record type.

Example
api.example.com → 104.21.44.118
Production outage — confirm your load balancer IP matches what DNS returns

Response Time Distribution

< 20ms
68%Excellent
20–50ms
24%Good
50–100ms
6%Fair
> 100ms
2%Slow
Median14ms

Resolver Support

Cloudflare
1.1.1.1
Google
8.8.8.8
Quad9
9.9.9.9
OpenDNS
208.67.222.222
Authoritative
auto-detect
Custom
any IP

Bulk Lookup

6 domains
DomainStatusA RecordTTLLatency
api.acme.io104.21.44.118300s11ms
mail.acme.io74.125.24.263600s23ms
staging.acme.io192.168.1.160s8ms
cdn.acme.io151.101.1.195300s14ms
vpn.acme.ioNXDOMAIN——
docs.acme.io185.199.108.1533600s31ms
WHOIS & Security Research

Trace domains back
through history

Passive DNS history, WHOIS records, and infrastructure pivoting — the toolkit security researchers actually need.

whois phishing-target.net
Domain:phishing-target.net
Registrar:NameCheap, Inc.
Registered:2026-01-14 03:22:11 UTC
Updated:2026-01-14 03:22:11 UTC
Expires:2027-01-14 03:22:11 UTC
Status:clientTransferProhibited
Registrant:REDACTED FOR PRIVACY
Registrant Org:Privacy service provided by Withheld for Privacy ehf
Admin Email:REDACTED FOR PRIVACY
Name Server 1:ns1.registrar-servers.com
Name Server 2:ns2.registrar-servers.com
DNSSEC:unsigned
Threat Score87/100

Fresh registration + Tor exit node IP + permissive SPF = high phishing probability

Passive DNS HistoryLast 45 days

Domain registered2026-01-14

Fresh registration — 6 weeks old. High-risk indicator for phishing.

A record: 185.220.101.472026-01-14

IP belongs to Tor exit node cluster. Previously flagged in threat intel.

MX added: mail.phishing-target.net2026-01-21

Mail server configured 7 days after registration.

A record changed: 91.108.4.1822026-02-03

IP rotated to Telegram server range. Infrastructure pivot.

TXT: v=spf1 +all2026-02-15

Permissive SPF record — allows any server to send as this domain.

Infrastructure Pivot Analysis

3
Shared IPs
7
Related Domains
2
ASN Matches
Desktop App

The web tool is just
the beginning

Three free lookups on the web. Unlimited on the desktop — with history, batch queries, and propagation alerts that wake you before your monitoring does.

Install command
v2.4.1·12.4 MB
$brew install resolve-dns
Open source
No telemetry
4.9/5 on GitHub

What you unlock with the desktop app

Query history — search across all past lookups
Batch queries — resolve 1,000 domains in parallel
Propagation alerts — notified the moment DNS changes
Auto-refresh monitoring — watch TTL expiry in real time
CLI integration — pipe results to grep, jq, or scripts
DNSSEC validation — verify cryptographic signatures
11.4k
GitHub Stars
840k
Downloads
127
Contributors

"Resolved a production MX misconfiguration at 2am in under 30 seconds. Nothing else comes close."

Marcus Okafor profile photo
Marcus Okafor
Senior SRE, Stripe

"I traced a phishing campaign back through 3 IP pivots using passive DNS history. Invaluable for threat intel."

Priya Venkataraman profile photo
Priya Venkataraman
Security Researcher, CrowdStrike

"Migrated 200 domains to a new registrar. Batch verification that used to take hours took 4 minutes."

James Kowalski profile photo
James Kowalski
Infrastructure Lead, Cloudflare