`crcsb.cn`

DNSSEC	⚠️ Not signed
A	39.107.91.184^{🇨🇳 Alibaba-Cloud39.106.0.0/15 CT BeiJing IDC}
NS	`dns1.4cun.com` ⭐
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	61.172.183.74^{🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC}
NS	`dns.4cun.com` ⚠️ Not in zone NS records
NS	`dns2.51dns.top` ⚠️ Not in zone NS records
		A	2408:4005:3dc:af00:a6be:339e:a1a0:d2b8^{🇨🇳 Alibaba-Cloud2408:4005::/33}
		A	219.138.102.210^{🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang}
SOA	`dns.4cun.com`admin@crcsb.cn serial=1772529197

`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=2034712138

Same first word

crcsb.cn

Similar names

bscrc.com

rbscc.org

rbscc.com

ccrbs.com

srcbc.org

brscc.co.uk

sbcrc.com

cbsrc.com.au

crsbc.org

cbcrs.co.uk

bsrcc.com

brcsc.com

csrcb.com

bccsr.com

crcbs.biz

sccrb.com

ccsbr.com

crsbc.com

sbrcc.org

sbcrc.org

bccrs.org

sccbr.cn

crscb.com

brccs.org

crsbc.ca

ccrsb.ca

csrbc.org

bscrc.jp

brccs.com

brccs.net

csbcr.com

DNS History

6 records (4 active, 2 former)

●NSdns.4cun.com2015-06-06 → 2026-04-25 · 2 obs

● 2015-06-06 01:56:58
● 2026-04-25 21:53:38

●NSdns1.4cun.com2026-04-14 → 2026-04-25 · 3 obs

○ 2015-06-06 01:56:58
● 2026-04-14 10:41:24
● 2026-04-25 21:53:38

●NSdns2.51dns.top2026-04-14 → 2026-04-25 · 3 obs

○ 2015-06-06 01:56:58
● 2026-04-14 10:41:24
● 2026-04-25 21:53:38

○A221.231.137.792017-05-31 → 2017-09-22 · 5 obs

○ 2016-05-07 00:37:24
● 2017-05-31 08:14:10
● 2017-09-22 03:39:46
○ 2026-04-14 10:41:24
○ 2026-04-25 21:53:38

○A221.231.140.1992015-06-06 → 2016-05-07 · 4 obs

● 2015-06-06 01:56:58
● 2016-05-07 00:37:24
○ 2017-05-31 08:14:10
○ 2026-04-25 21:53:38

●A39.107.91.1842026-04-14 → 2026-04-25 · 3 obs

○ 2017-09-22 03:39:46
● 2026-04-14 10:41:24
● 2026-04-25 21:53:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
crcsb.cn	dns1.4cun.com, dns2.51dns.top	-

✅ Authoritative Response

Server:61.172.183.74

NS records: dns1.4cun.com, dns2.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crcsb.cn (unsigned zone)

⏱️ Timing

Total: 1836ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`39.107.91.184`
SOA	1	`dns.4cun.com admin.crcsb.cn`

Analysis

IP Addresses

crcsb.cn points to a single IP number: 39.107.91.184.

Name Servers

The delegation for crcsb.cn is handled by three name servers: dns1.4cun.com, dns.4cun.com and dns2.51dns.top.

crcsb.cn at least partially shares name servers with other domains, for instance gcne.net, huaige.com, ybmjg158.cn, cnzjbc.com and superfootcare.com.

These name servers are commonly used together with the name servers dns3.4cun.com, dns4.51dns.top, dns2.4cun.com, dns7.4cun.com, ns3.4cun.com, ns4.4cun.com, dns8.51dns.top, ns1.4cun.com, dns6.51dns.top and ns2.4cun.com.

Host names with two IP numbers:

dns1.4cun.com points to: 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 and 61.172.183.74.

dns2.51dns.top points to: 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8 and 219.138.102.210.

Names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:d2b8: dns1.4cun.com and dns2.51dns.top.

crcsb.cn - robtex.com

crcsb.cn

cn