host.tools

DNS propagation

DNS Live stream /api/v1/dns/propagation

Query 15 global resolvers — see if your DNS change has propagated worldwide.

Try: host.com checkhost.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

Inconsistent — propagation in progress

12 answer sets A

Queried 15 resolvers across the world for mail.google.com.

Cloudflare
1.1.1.1
32 ms
  • 142.251.142.197
Cloudflare 2
1.0.0.1
27 ms
  • 172.217.170.197
Google
8.8.8.8
31 ms
  • 172.217.171.101
Google 2
8.8.4.4
48 ms
  • 172.217.171.101
Quad9
9.9.9.9
26 ms
  • 142.251.39.133
OpenDNS
208.67.222.222
60 ms
  • 172.217.171.101
OpenDNS 2
208.67.220.220
59 ms
  • 172.217.171.101
Level 3
4.2.2.2
32 ms
  • 172.217.21.229
Comodo Secure
8.26.56.26
29 ms
  • 142.250.180.5
Verisign
64.6.64.6
29 ms
  • 192.178.183.83
  • 192.178.183.19
  • 192.178.183.18
  • 192.178.183.17
Yandex
77.88.8.8
72 ms
  • 64.233.162.83
  • 64.233.162.19
  • 64.233.162.17
  • 64.233.162.18
CleanBrowsing
185.228.168.9
28 ms
  • 108.177.119.19
  • 108.177.119.18
  • 108.177.119.17
  • 108.177.119.83
Control D
76.76.2.0
27 ms
  • 142.251.127.18
  • 142.251.127.17
  • 142.251.127.19
  • 142.251.127.83
AdGuard
94.140.14.14
55 ms
  • 142.250.78.101
Mullvad
194.242.2.2
34 ms
No records returned.
Distinct answer sets
1 142.251.142.197
2 172.217.170.197
3 172.217.171.101
4 142.251.39.133
5 172.217.21.229
6 142.250.180.5
7 192.178.183.83,192.178.183.19,192.178.183.18,192.178.183.17
8 64.233.162.83,64.233.162.19,64.233.162.17,64.233.162.18
9 108.177.119.19,108.177.119.18,108.177.119.17,108.177.119.83
10 142.251.127.18,142.251.127.17,142.251.127.19,142.251.127.83
11 142.250.78.101
12 (empty)
How to use DNS propagation
  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/propagation 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/propagation?q=mail.google.com 
curl -s '/api/v1/dns/propagation?q=mail.google.com'
Embed this tool
<iframe src="/dns/propagation?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 propagation

Common questions

Is DNS propagation free?
Yes — every tool is free on the web with a 200/hour rate limit per IP. The matching API endpoint /api/v1/dns/propagation 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 propagation 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 propagation 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