`ns12.srcb.com`

DNSSEC	⚠️ Not signed
A	2409:871e:8f00:a5::3^{🇨🇳 CMNET-V4shanghai-AS-AP2409:871e:8f00::/48 CMI (Customer Route)}
		PTR	`(root)`
A	117.131.34.3^{🇨🇳 CMNET-V4shanghai-AS-AP117.131.0.0/17 CMI IP Transit}

`srcb.com`

	DNSSEC	⚠️ Not signed
	A	219.233.79.11^{🇨🇳 CNNIC-CN-COLNET219.233.64.0/18}
	A	222.73.150.11^{🇨🇳 SHANGHAITELECOM222.73.150.0/24 SHIDC}
	NS	`ans1.zdnscloud.net` ⭐
	NS	`ans2.zdnscloud.biz`
	MX	`mailgateway02.srcb.com` ⭐
	MX	`mailgateway.srcb.com`⁽¹⁰⁾
	TXT	`3500b7p3762gwpb5sm9xkg66tc1zq3vq`
	TXT	`5tp4tyyy7f6n607ldcct02bdz5lcz1zn`
	TXT	`v=spf1 ip4:61.129.93.104 ip4:61.129.93.105 ip4:211.95.40.185 ip4:211.95.40.18...`
	SOA	`ans1.zdnscloud.net`mail@knet.cn serial=1240

rank #270256 globally
rank #112040 in the tld
📈 Tranco rank: #478,945

NS for

gslb.srcb.com

Same first word

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DNS History

2 records (2 active, 0 former)

●A117.131.34.32026-02-21 → 2026-05-10 · 2 obs

● 2026-02-21 01:30:16
● 2026-05-10 06:25:42

●A2409:871e:8f00:a5::32026-02-21 → 2026-05-10 · 2 obs

● 2026-02-21 01:30:16
● 2026-05-10 06:25:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, e.gtld-servers.net...	-
srcb.com	ans2.zdnscloud.biz, ans1.zdnscloud.net	-

✅ Authoritative Response

Server:119.167.244.48

NS records: ans2.zdnscloud.biz, ans1.zdnscloud.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for srcb.com (unsigned zone)

⏱️ Timing

Total: 4128ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`117.131.34.3`
AAAA	1	`2409:871e:8f00:a5::3`

Analysis

Name Server Role

ns12.srcb.com serves as the name server for gslb.srcb.com.

With ns12.srcb.com, ns11.srcb.com, ns13.srcb.com and ns14.srcb.com are commonly used as name servers.

IP Addresses

Two IP numbers are pointed to by ns12.srcb.com: 2409:871e:8f00:a5::3 and 117.131.34.3.

ns12.srcb.com - robtex.com

ns12.srcb.com

srcb.com