`roundrock.cn`

DNSSEC	⚠️ Not signed
NS	`ens11.bigwww.com` ⭐ ⚠️ Not in parent delegation
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
NS	`ens12.bigwww.com` ⚠️ Not in parent delegation
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ns11.bigwww.com` ⚠️ Not in zone NS records
		A	2408:4009:501::9^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
NS	`ns12.bigwww.com` ⚠️ Not in zone NS records
		A	2408:4009:501::10^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ns13.bigwww.com` ⚠️ Not in zone NS records
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
NS	`ns14.bigwww.com` ⚠️ Not in zone NS records
		A	139.224.142.113^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`ns15.bigwww.com` ⚠️ Not in zone NS records
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
NS	`ns16.bigwww.com` ⚠️ Not in zone NS records
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`ens11.bigwww.com`hostmaster@hichina.com 2026-01-12 #9

`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=2034661319

Same first word

roundrock.biz

roundrock.cn

DNS History

14 records (10 active, 4 former)

○NSdns10.hichina.com2015-05-28 → 2015-12-16 · 4 obs

● 2015-05-28 13:49:44
● 2015-12-16 18:00:30
○ 2016-03-26 20:30:18
○ 2026-04-12 05:33:46

○NSdns9.hichina.com2015-05-28 → 2015-12-16 · 4 obs

● 2015-05-28 13:49:44
● 2015-12-16 18:00:30
○ 2016-03-26 20:30:18
○ 2026-04-12 05:33:46

●NSens11.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●NSens12.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●NSns11.bigwww.com2016-06-29 → 2026-04-12 · 3 obs

○ 2016-03-26 20:30:18
● 2016-06-29 14:30:08
● 2026-04-12 05:33:46

●NSns12.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●NSns13.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●NSns14.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●NSns15.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●NSns16.bigwww.com2026-03-15 → 2026-04-12 · 3 obs

○ 2016-06-29 14:30:08
● 2026-03-15 06:37:54
● 2026-04-12 05:33:46

●MXmxbiz1.qq.com2019-12-26 → 2026-04-12 · 3 obs

○ 2017-03-16 02:21:24
● 2019-12-26 01:44:06
● 2026-04-12 05:33:46

●MXmxbiz2.qq.com2019-12-26 → 2026-04-12 · 3 obs

○ 2017-03-16 02:21:24
● 2019-12-26 01:44:06
● 2026-04-12 05:33:46

○MXmxn.mxhichina.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 02:21:24
○ 2019-12-26 01:44:06
○ 2026-04-12 05:33:46

○MXmxw.mxhichina.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 02:21:24
○ 2019-12-26 01:44:06
○ 2026-04-12 05:33:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	c.dns.cn, e.dns.cn, b.dns.cn, a.dns.cn...	-
roundrock.cn	ns11.bigwww.com, ns12.bigwww.com, ns13.bigwww.com, ns14.bigwww.com...	-

✅ Authoritative Response

Server:120.76.107.43

NS records: ns11.bigwww.com, ns12.bigwww.com, ns13.bigwww.com, ns14.bigwww.com, ns15.bigwww.com, ns16.bigwww.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for roundrock.cn (unsigned zone)

⏱️ Timing

Total: 3085ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ens12.bigwww.com, ens11.bigwww.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
TXT	1	`v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`ens11.bigwww.com hostmaster.hichina.com`

Analysis

Name Servers

Eight name servers are delegated to roundrock.cn: ens11.bigwww.com, ens12.bigwww.com, ns11.bigwww.com, ns12.bigwww.com, ns13.bigwww.com, ns14.bigwww.com, ns15.bigwww.com and ns16.bigwww.com.

roundrock.cn at least partially shares name servers with other domains such as hnchuzhou.com, rz1188.com, sywljc.com, szqkhb.com and egsw.cn.