bt159.cn - robtex.com

bt159.cn

DNSSEC⚠️ Not signed

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034660566

Same first word

bt159.cn

DNS History

8 records (0 active, 8 former)

20162017201820192020202120222023202420252026NSns1.51dns.comns1.nowcndns.comns2.nowcndns.comns5.dnsdun.netns6.dnsdun.comA104.151.111.127192.80.170.50207.56.47.13
○NSns1.51dns.com2015-07-19 → 2015-07-19 · 3 obs
● 2015-07-19 14:17:22
○ 2015-11-14 03:17:12
○ 2026-04-12 00:23:58
○NSns1.nowcndns.com2026-03-01 → 2026-03-01 · 4 obs
○ 2017-05-13 06:37:02
● 2026-03-01 20:41:54
○ 2026-04-12 00:23:56
○ 2026-04-12 00:23:58
○NSns2.nowcndns.com2026-03-01 → 2026-03-01 · 4 obs
○ 2017-05-13 06:37:02
● 2026-03-01 20:41:54
○ 2026-04-12 00:23:56
○ 2026-04-12 00:23:58
○NSns5.dnsdun.net2017-05-13 → 2017-05-13 · 4 obs
○ 2015-11-14 03:17:12
● 2017-05-13 06:37:02
○ 2026-03-01 20:41:54
○ 2026-04-12 00:23:58
○NSns6.dnsdun.com2017-05-13 → 2017-05-13 · 4 obs
○ 2015-11-14 03:17:12
● 2017-05-13 06:37:02
○ 2026-03-01 20:41:54
○ 2026-04-12 00:23:58
○A104.151.111.1272017-05-13 → 2017-05-13 · 4 obs
○ 2015-11-14 03:17:12
● 2017-05-13 06:37:02
○ 2026-03-01 20:41:54
○ 2026-04-12 00:23:58
○A192.80.170.502015-07-19 → 2015-07-19 · 3 obs
● 2015-07-19 14:17:22
○ 2015-11-14 03:17:12
○ 2026-04-12 00:23:58
○A207.56.47.132026-03-01 → 2026-03-01 · 4 obs
○ 2017-05-13 06:37:02
● 2026-03-01 20:41:54
○ 2026-04-12 00:23:56
○ 2026-04-12 00:23:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-

✅ Authoritative Response

Server:203.119.25.1

NS records: a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 788ms | Queries: -

📄 Records

TypeCountSample Data