refdoc.com - dns.ninja

`refdoc.com`

DNSSEC	⚠️ Not signed
NS	`dns27.hichina.com` ⭐
		A	2408:4009:501::35^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 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	139.224.142.109^{🇨🇳 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	`dns28.hichina.com`
		A	2408:4009:501::36^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 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	139.224.142.107^{🇨🇳 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,}
SOA	`dns27.hichina.com`hostmaster@hichina.com 2026-01-09 #13

`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=1781626095

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DNS History

7 records (2 active, 5 former)

●NSdns27.hichina.com2026-02-19 → 2026-06-16 · 3 obs

○ 2017-05-18 19:54:58
● 2026-02-19 10:46:58
● 2026-06-16 16:35:02

●NSdns28.hichina.com2026-02-19 → 2026-06-16 · 3 obs

○ 2017-05-18 19:54:58
● 2026-02-19 10:46:58
● 2026-06-16 16:35:02

○NSns1.sedoparking.com2015-06-16 → 2017-05-18 · 4 obs

● 2015-06-16 10:56:24
● 2017-05-18 19:54:58
○ 2026-02-19 10:46:58
○ 2026-06-16 16:35:02

○NSns2.sedoparking.com2015-06-16 → 2017-05-18 · 4 obs

● 2015-06-16 10:56:24
● 2017-05-18 19:54:58
○ 2026-02-19 10:46:58
○ 2026-06-16 16:35:02

○MXlocalhost2016-11-23 → 2017-05-18 · 5 obs

○ 2016-04-10 01:31:06
● 2016-11-23 13:22:54
● 2017-05-18 19:54:58
○ 2026-02-19 10:46:58
○ 2026-06-16 16:35:02

○MXmail.nickstel.com2015-06-16 → 2016-04-10 · 4 obs

● 2015-06-16 10:56:24
● 2016-04-10 01:31:06
○ 2016-11-23 13:22:54
○ 2026-06-16 16:35:02

○A72.52.4.1192015-06-16 → 2017-05-18 · 4 obs

● 2015-06-16 10:56:24
● 2017-05-18 19:54:58
○ 2026-02-19 10:46:58
○ 2026-06-16 16:35:02

🔍 DNS Trace

Analysis

Name Servers

refdoc.com uses two name servers for its delegation: dns27.hichina.com and dns28.hichina.com.

refdoc.com uses the same name servers as several other domains — among them 186186.cn, hanjunxiandai.com, jjinfo.com and two more.

The name servers of refdoc.com overlap at least partially with those of other domains — among them 10l7xr.cn, renyuan.com.cn, gunqifei.shop and two more.

These name servers commonly appear alongside the name servers expirens3.hichina.com and expirens4.hichina.com.

Hostnames that resolve to 9 IP addresses:

Hostname dns27.hichina.com directs to 39.96.153.39, 39.96.153.59 and 47.118.199.199 along with 6 other IP addresses.

Hostname dns28.hichina.com directs to 39.96.153.37, 39.96.153.62 and 47.118.199.197 along with 6 other IP addresses.