officeserver.cn - dns.ninja

`officeserver.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	`mx1.feishu.cn` ⭐
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
MX	`mx2.feishu.cn`⁽²⁰⁾
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
MX	`mx3.feishu.cn`⁽³⁰⁾
		A	52.220.106.220^{🇸🇬 Amazon52.220.0.0/15 SIN prefix}
			PTR	`ec2-52-220-106-220.ap-southeast-1.compute.amazonaws.com`
		A	101.126.58.225^{🇨🇳 VOLCANO-ENGINE101.126.56.0/21 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	122.14.229.0^{🇨🇳 CHINAMOBILE-CN122.14.224.0/20}
TXT	`verification-code-site-App_feishu=SQrrG28NCbwI4VEDDK5Q`
TXT	`v=spf1 +include:_netblocks.m.feishu.cn ~all`
SOA	`dns17.hichina.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=2034991716

Same first word

officeserver.de

officeserver.ca

officeserver.dk

officeserver.cn

officeserver.com

officeserver.ru

Similar names

serviceoffer.com

offerservice.net

serveroffice.com

serveroffice.cloud

serveroffice.de

riverscoffee.com

DNS History

19 records (5 active, 14 former)

○NSdns1.iidns.com2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

○NSdns10.hichina.com2016-06-21 → 2016-06-21 · 4 obs

○ 2016-02-28 01:22:10
● 2016-06-21 02:06:26
○ 2018-09-11 22:30:08
○ 2026-07-01 21:10:32

●NSdns17.hichina.com2026-02-24 → 2026-07-01 · 3 obs

○ 2018-09-11 22:30:08
● 2026-02-24 19:33:04
● 2026-07-01 21:10:32

●NSdns18.hichina.com2026-02-24 → 2026-07-01 · 3 obs

○ 2018-09-11 22:30:08
● 2026-02-24 19:33:04
● 2026-07-01 21:10:32

○NSdns2.iidns.com2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

○NSdns3.iidns.com2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

○NSdns4.iidns.com2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

○NSdns5.iidns.com2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

○NSdns6.iidns.com2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

○NSdns9.hichina.com2016-06-21 → 2016-06-21 · 4 obs

○ 2016-02-28 01:22:10
● 2016-06-21 02:06:26
○ 2018-09-11 22:30:08
○ 2026-07-01 21:10:32

○NSns1.22.cn2018-09-11 → 2018-09-11 · 4 obs

○ 2016-06-21 02:06:26
● 2018-09-11 22:30:08
○ 2026-02-24 19:33:04
○ 2026-07-01 21:10:32

○NSns2.22.cn2018-09-11 → 2018-09-11 · 4 obs

○ 2016-06-21 02:06:26
● 2018-09-11 22:30:08
○ 2026-02-24 19:33:04
○ 2026-07-01 21:10:32

●MXmx1.feishu.cn2026-02-24 → 2026-07-01 · 5 obs

● 2026-02-24 19:33:04
● 2026-06-06 05:50:08
○ 2026-06-10 14:36:12
● 2026-06-14 19:40:04
● 2026-07-01 21:10:32

●MXmx2.feishu.cn2026-02-24 → 2026-07-01 · 5 obs

● 2026-02-24 19:33:04
● 2026-06-06 05:50:08
○ 2026-06-10 14:36:12
● 2026-06-14 19:40:04
● 2026-07-01 21:10:32

●MXmx3.feishu.cn2026-02-24 → 2026-07-01 · 5 obs

● 2026-02-24 19:33:04
● 2026-06-06 05:50:08
○ 2026-06-10 14:36:12
● 2026-06-14 19:40:04
● 2026-07-01 21:10:32

○A198.148.92.872015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2018-09-11 22:30:08
○ 2026-07-01 21:10:32

○A198.148.92.882015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2018-09-11 22:30:08
○ 2026-07-01 21:10:32

○A47.90.12.1662016-06-21 → 2017-02-15 · 5 obs

○ 2015-06-10 12:49:12
● 2016-06-21 02:06:26
● 2017-02-15 14:38:50
○ 2018-09-11 22:30:08
○ 2026-07-01 21:10:32

○CNAMEcs.ename.net2015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 12:49:12
○ 2016-02-28 01:22:10
○ 2026-07-01 21:10:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
officeserver.cn	dns17.hichina.com, dns18.hichina.com	-

✅ Authoritative Response

Server:39.96.153.60

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for officeserver.cn (unsigned zone)

⏱️ Timing

Total: 3182ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns18.hichina.com, dns17.hichina.com`
MX	3	`mx1.feishu.cn (pri: 10), mx3.feishu.cn (pri: 30)...`
TXT	2	`verification-code-site-App_feishu=SQrrG2, v=spf1 +include:_netblocks.m.feishu.cn`
SOA	1	`dns17.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

The NS records for officeserver.cn delegate to dns17.hichina.com and dns18.hichina.com.

officeserver.cn shares its name server setup with other domains, including nqcd.cn, knzeda.com, szhqjd.com and two others.

The name servers for officeserver.cn are at least partly shared with other domains such as bluefund.cn, banket.cn, altrain.cn and tx17853.xyz.

It is common to see these name servers used together with name servers ns1.alidns.com and ns2.alidns.com.

Host names with 9 IP numbers:

dns17.hichina.com maps to 39.96.153.40, 39.96.153.60, 47.118.199.200 and 6 additional IP addresses.

dns18.hichina.com maps to 39.96.153.38, 39.96.153.61, 47.118.199.198 and 6 additional IP addresses.

Mail Servers

officeserver.cn has three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.

officeserver.cn shares mail servers — at least in part — with other domains, including fnscm.com, retirwer.com, rinc.xyz and two others.

Host names with three IP numbers:

mx3.feishu.cn maps to three IP addresses: 52.220.106.220, 101.126.58.225 and 122.14.229.0.

Host names with two IP numbers:

The A records for mx2.feishu.cn return 101.126.58.225 and 122.14.229.0.

Host names pointing to a single IP address:

mx1.feishu.cn resolves to the IP address 52.220.106.220.

mx3.feishu.cn and mx1.feishu.cn each have 52.220.106.220 IP addresses.

mx3.feishu.cn and mx2.feishu.cn each have 101.126.58.225 IP addresses.

mx3.feishu.cn and mx2.feishu.cn each have 122.14.229.0 IP addresses.