`divemaster.cn`

DNSSEC	⚠️ Not signed
NS	`dns17.hichina.com` ⭐
		A	2408:4009:501::25^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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,}
		A	139.224.142.110^{🇨🇳 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	`dns18.hichina.com`
		A	2408:4009:501::26^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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,}
		A	139.224.142.108^{🇨🇳 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,}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`dns17.hichina.com`hostmaster@hichina.com 2026-01-09 #13

`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=2034584106

Same first word

divemaster.nl

divemaster.tv

divemaster.ch

divemaster.ru

divemaster.dk

divemaster.co.il

divemaster.com

divemaster.cn

divemaster.se

divemaster.de

divemaster.com.br

divemaster.eu

divemaster.pro

divemaster.be

Similar names

DNS History

6 records (4 active, 2 former)

○NSdns10.hichina.com2017-01-07 → 2017-01-07 · 3 obs

● 2017-01-07 19:39:26
○ 2026-02-26 22:20:44
○ 2026-03-25 04:31:18

●NSdns17.hichina.com2026-02-26 → 2026-03-25 · 3 obs

○ 2017-01-07 19:39:26
● 2026-02-26 22:20:44
● 2026-03-25 04:31:18

●NSdns18.hichina.com2026-02-26 → 2026-03-25 · 3 obs

○ 2017-01-07 19:39:26
● 2026-02-26 22:20:44
● 2026-03-25 04:31:18

○NSdns9.hichina.com2017-01-07 → 2017-01-07 · 3 obs

● 2017-01-07 19:39:26
○ 2026-02-26 22:20:44
○ 2026-03-25 04:31:18

●MXmxbiz1.qq.com2026-02-26 → 2026-03-25 · 2 obs

● 2026-02-26 22:20:44
● 2026-03-25 04:31:18

●MXmxbiz2.qq.com2026-02-26 → 2026-03-25 · 2 obs

● 2026-02-26 22:20:44
● 2026-03-25 04:31:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
divemaster.cn	dns17.hichina.com, dns18.hichina.com	-

✅ Authoritative Response

Server:120.76.107.61

NS records: dns17.hichina.com, dns18.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for divemaster.cn (unsigned zone)

⏱️ Timing

Total: 4196ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns17.hichina.com, dns18.hichina.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	`dns17.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

divemaster.cn's delegation is to two name servers dns17.hichina.com and dns18.hichina.com.

divemaster.cn shares the same name server configuration as other domains, such as ldpawn.com, trove.com.cn, 1positioning.com, gxzxs.com and jxph96345.cn.

divemaster.cn shares name servers with other domains to some extent, for instance leiom.com, greenwichmedia.cn, onebendao.com and xibilai.com.

These name servers are commonly used alongside expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers: dns17.hichina.com points to 2408:4009:501::25, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110; dns18.hichina.com points to 2408:4009:501::26, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.

Mail Servers

Two mail servers mxbiz1.qq.com and mxbiz2.qq.com handle divemaster.cn.

divemaster.cn uses the same mail server setup as other domains such as szsongyi.com, dnspod.net, hanzuor.com, byjoelepstein.com and zzlgroup.com.

divemaster.cn shares some mail servers with other domains, including vps.ink, morefic.com, ok01.com, oksonic.com and ahltwl.cn.

divemaster.cn - robtex.com

divemaster.cn

cn