`buwcb.cn`

DNSSEC	⚠️ Not signed
A	156.244.252.86^{🇺🇸 GNET-AS9294156.244.240.0/20}
NS	`ns1.julydns.com` ⭐ ⚠️ Not in parent delegation
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns1.judns.com` ⚠️ Not in zone NS records
		A	47.97.51.45^{🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD}
NS	`ns2.judns.com` ⚠️ Not in zone NS records
		A	162.159.27.251^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.julydns.com` ⚠️ Not in parent delegation
		A	162.159.48.223^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
SOA	`ns1.julydns.com`master@jmdns.com serial=1775573234

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034667160

Subdomains

ctsrrv.buwcb.cn

leo.buwcb.cn

svq.buwcb.cn

ctszjf.buwcb.cn

wh2e4.buwcb.cn

Same first word

buwcb.cn

DNS History

9 records (5 active, 4 former)

○NSf1g1ns1.dnspod.net2015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 04:00:12
○ 2015-12-05 08:58:44
○ 2026-04-13 20:57:12

○NSf1g1ns2.dnspod.net2015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 04:00:12
○ 2015-12-05 08:58:44
○ 2026-04-13 20:57:12

●NSns1.judns.com2026-03-26 → 2026-04-13 · 3 obs

○ 2015-12-05 08:58:44
● 2026-03-26 11:05:40
● 2026-04-13 20:57:12

●NSns1.julydns.com2026-03-26 → 2026-04-13 · 3 obs

○ 2015-12-05 08:58:44
● 2026-03-26 11:05:40
● 2026-04-13 20:57:12

●NSns2.judns.com2026-03-26 → 2026-04-13 · 3 obs

○ 2015-12-05 08:58:44
● 2026-03-26 11:05:40
● 2026-04-13 20:57:12

●NSns2.julydns.com2026-03-26 → 2026-04-13 · 3 obs

○ 2015-12-05 08:58:44
● 2026-03-26 11:05:40
● 2026-04-13 20:57:12

○A156.244.249.802026-03-26 → 2026-03-26 · 4 obs

○ 2015-12-05 08:58:44
● 2026-03-26 11:05:40
○ 2026-04-07 09:58:04
○ 2026-04-13 20:57:12

●A156.244.252.862026-04-13 → 2026-04-13 · 2 obs

○ 2026-04-07 09:58:04
● 2026-04-13 20:57:12

○A43.255.107.262015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 04:00:12
○ 2015-12-05 08:58:44
○ 2026-04-13 20:57:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
buwcb.cn	ns1.judns.com, ns2.judns.com	-

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for buwcb.cn (unsigned zone)

⏱️ Timing

Total: 1005ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`156.244.252.86`
NS	2	`ns1.julydns.com, ns2.julydns.com`
SOA	1	`ns1.julydns.com master.jmdns.com`

Analysis

Hierarchy

buwcb.cn is parent of ctsrrv.buwcb.cn, leo.buwcb.cn, svq.buwcb.cn, ctszjf.buwcb.cn and wh2e4.buwcb.cn.

IP Addresses

buwcb.cn points to an IP address: 156.244.252.86.

other host names include ctsrrv.buwcb.cn, svq.buwcb.cn, zhigc.cn, ctszjf.buwcb.cn and 8ggh4.cn; they share IP numbers with buwcb.cn.

Name Servers

buwcb.cn delegates to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

buwcb.cn at least partially shares name servers with other domains, for instance rexnongyi.com, bxqjss.com, wxjiaoda.cn, zhihankj.com and psdnc.com.