DNS propagation checker

Watch a domain resolve from 16 probe cities, in real time.

Demo · 0%

Global view

ResolvedSlowFailed
Probes resolved
14 / 16
Unique answers
2 IPs
Median RTT
56ms
Max RTT
142ms

By location

sorted by RTT
LocationAnswerRTT
🇺🇸New York
US
140.82.114.48ms
🇺🇸San Francisco
US
140.82.114.412ms
🇬🇧London
GB
140.82.114.422ms
🇩🇪Frankfurt
DE
140.82.114.424ms
🇸🇪Stockholm
SE
140.82.114.436ms
🇰🇷Seoul
KR
140.82.114.438ms
🇯🇵Tokyo
JP
140.82.114.442ms
🇦🇺Sydney
AU
140.82.114.449ms
🇸🇬Singapore
SG
140.82.121.456ms
🇧🇷São Paulo
BR
140.82.114.464ms
🇭🇰Hong Kong
HK
140.82.121.464ms
🇮🇳Mumbai
IN
140.82.114.478ms
🇦🇪Dubai
AE
140.82.114.484ms
🇳🇬Lagos
NG
140.82.114.488ms
🇳🇿Auckland
NZ
140.82.121.4134ms
🇿🇦Cape Town
ZA
140.82.114.4142ms

Answer distribution

140.82.114.4
12 / 16
140.82.121.4
4 / 16

Two distinct A records observed — expected for a multi-region anycast pool. Both target GitHub-owned space (AS36459).

TTL behavior

Authoritative TTL
60s
Observed (avg)
44s
Min in pool
12s
Max in pool
60s

Short TTLs indicate this domain expects fast failover. After a record change, expect full propagation within ~1 minute.