`cityoperator.com`

DNSSEC	⚠️ Not signed
A	121.42.94.161^{🇨🇳 Alibaba-Cloud121.42.64.0/18}
NS	`dns21.hichina.com` ⭐
		A	2408:4009:501::29^{🇨🇳 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	`dns22.hichina.com`
		A	2408:4009:501::30^{🇨🇳 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	`dns21.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784449062

Same first word

cityoperator.com

DNS History

10 records (5 active, 5 former)

●NSdns21.hichina.com2026-03-22 → 2026-07-19 · 3 obs

○ 2016-05-07 11:19:24
● 2026-03-22 04:49:28
● 2026-07-19 08:25:36

●NSdns22.hichina.com2026-03-22 → 2026-07-19 · 3 obs

○ 2016-05-07 11:19:24
● 2026-03-22 04:49:28
● 2026-07-19 08:25:36

○NSns.cnkuai.cn2015-06-27 → 2016-01-26 · 4 obs

● 2015-06-27 01:58:24
● 2016-01-26 03:09:40
○ 2016-05-07 11:19:24
○ 2026-07-19 08:25:36

○NSns.cnkuai.com2015-06-27 → 2015-11-06 · 4 obs

● 2015-06-27 01:58:24
● 2015-11-06 10:47:16
○ 2016-01-26 03:09:40
○ 2026-07-19 08:25:36

○NSns2.cnkuai.com2015-06-27 → 2015-06-27 · 3 obs

● 2015-06-27 01:58:24
○ 2015-11-06 10:47:16
○ 2026-07-19 08:25:36

○NSns3.cnkuai.cn2015-06-27 → 2015-06-27 · 3 obs

● 2015-06-27 01:58:24
○ 2015-11-06 10:47:16
○ 2026-07-19 08:25:36

○NSns3.cnkuai.com2015-06-27 → 2015-06-27 · 3 obs

● 2015-06-27 01:58:24
○ 2015-11-06 10:47:16
○ 2026-07-19 08:25:36

●MXmxbiz1.qq.com2026-03-22 → 2026-07-19 · 2 obs

● 2026-03-22 04:49:28
● 2026-07-19 08:25:36

●MXmxbiz2.qq.com2026-03-22 → 2026-07-19 · 2 obs

● 2026-03-22 04:49:28
● 2026-07-19 08:25:36

●A121.42.94.1612026-03-22 → 2026-07-19 · 2 obs

● 2026-03-22 04:49:28
● 2026-07-19 08:25:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net...	-
cityoperator.com	dns21.hichina.com, dns22.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.40

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cityoperator.com (unsigned zone)

⏱️ Timing

Total: 3631ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.42.94.161`
NS	2	`dns21.hichina.com, dns22.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	`dns21.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns21.hichina.com, dns21.hichina.com, dns21.hichina.com...)

Analysis

IP Addresses

cityoperator.com has exactly one IP address — 121.42.94.161.

Name Servers

cityoperator.com is served by two delegated name servers, dns21.hichina.com and dns22.hichina.com.

The name server configuration of cityoperator.com is shared with other domains, for instance hfdabang.com, commarket.cn, nikim.net and two others.

cityoperator.com shares at least some of its name servers with other domains, including 2216666.com, msses.com, sunlan.net and two others.

These name servers are frequently paired with the name servers expirens3.hichina.com and expirens4.hichina.com.

Hosts with 9 IP addresses each:

dns21.hichina.com carries IP addresses 39.96.153.40, 39.96.153.60 and 47.118.199.200, with 6 other addresses beyond those.

dns22.hichina.com carries IP addresses 39.96.153.38, 39.96.153.61 and 47.118.199.198, with 6 other addresses beyond those.

Mail Servers

cityoperator.com uses two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.

The mail server setup of cityoperator.com matches that of other domains such as cciis.cn, oneyeens.com, sjtc.com.cn and two others.

cityoperator.com shares at least some of its mail servers with other domains, such as testpassport.jp.

cityoperator.com - robtex.com