`au51.com`

CNAME	`expired.hichina.com`
DNSSEC	⚠️ Not signed
A	8.218.208.240^{🇭🇰 Alibaba-Cloud8.218.128.0/17 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811}
		PTR	`ip-8-218-208-240.defastlink.net`
A	47.76.127.217^{🇺🇸 Alibaba-Cloud47.76.0.0/17 Proxy-registered route object}
A	47.91.170.222^{🇭🇰 Alibaba-Cloud47.91.128.0/18 Alibaba Cloud}
NS	`ns1.alidns.com` ⭐ ⚠️ Not in parent delegation
		A	2408:4009:501::1^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.45^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-45.defastlink.net`
		A	39.96.153.55^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-55.defastlink.net`
		A	47.118.199.205^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-205.defastlink.net`
		A	47.118.199.215^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-215.defastlink.net`
		A	120.76.107.45^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-45.defastlink.net`
		A	120.76.107.55^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-55.defastlink.net`
		A	139.224.142.115^{🇨🇳 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,}
			PTR	`ip-139-224-142-115.defastlink.net`
		A	139.224.142.125^{🇨🇳 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,}
			PTR	`ip-139-224-142-125.defastlink.net`
NS	`ns2.alidns.com` ⚠️ Not in parent delegation
		A	2408:4009:501::2^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.46^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-46.defastlink.net`
		A	39.96.153.56^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-56.defastlink.net`
		A	47.118.199.206^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-206.defastlink.net`
		A	47.118.199.216^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-216.defastlink.net`
		A	120.76.107.46^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-46.defastlink.net`
		A	120.76.107.56^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-56.defastlink.net`
		A	139.224.142.116^{🇨🇳 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,}
			PTR	`ip-139-224-142-116.defastlink.net`
		A	139.224.142.126^{🇨🇳 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,}
			PTR	`ip-139-224-142-126.defastlink.net`
SOA	`ns1.alidns.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=1771291435

Same first word

au51.com

Similar names

15ua.cn

51ua.com

au15.com

a15u.com

au15.cn

DNS History

14 records (5 active, 9 former)

○NSdns1.iidns.com2016-02-06 → 2017-02-17 · 5 obs

○ 2015-07-19 17:41:42
● 2016-02-06 19:32:10
● 2017-02-17 02:25:58
○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

○NSdns2.iidns.com2016-02-06 → 2017-02-17 · 5 obs

○ 2015-07-19 17:41:42
● 2016-02-06 19:32:10
● 2017-02-17 02:25:58
○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

●NSdns23.hichina.com2026-03-04 → 2026-03-24 · 3 obs

○ 2017-02-17 02:25:58
● 2026-03-04 09:42:50
● 2026-03-24 04:14:14

●NSdns24.hichina.com2026-03-04 → 2026-03-24 · 3 obs

○ 2017-02-17 02:25:58
● 2026-03-04 09:42:50
● 2026-03-24 04:14:14

○NSdns3.iidns.com2016-02-06 → 2017-02-17 · 5 obs

○ 2015-07-19 17:41:42
● 2016-02-06 19:32:10
● 2017-02-17 02:25:58
○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

○NSdns4.iidns.com2016-02-06 → 2017-02-17 · 5 obs

○ 2015-07-19 17:41:42
● 2016-02-06 19:32:10
● 2017-02-17 02:25:58
○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

○NSdns5.iidns.com2016-02-06 → 2017-02-17 · 5 obs

○ 2015-07-19 17:41:42
● 2016-02-06 19:32:10
● 2017-02-17 02:25:58
○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

○NSdns6.iidns.com2015-07-19 → 2017-02-17 · 4 obs

● 2015-07-19 17:41:42
● 2017-02-17 02:25:58
○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

●NSexpirens3.hichina.com2026-03-04 → 2026-03-24 · 3 obs

○ 2017-02-17 02:25:58
● 2026-03-04 09:42:50
● 2026-03-24 04:14:14

●NSexpirens4.hichina.com2026-03-04 → 2026-03-24 · 3 obs

○ 2017-02-17 02:25:58
● 2026-03-04 09:42:50
● 2026-03-24 04:14:14

○NSn1.xundns.com2026-03-04 → 2026-03-24 · 2 obs

○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

○NSn2.xundns.com2026-03-04 → 2026-03-24 · 2 obs

○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

●CNAMEexpired.hichina.com2026-03-04 → 2026-03-24 · 2 obs

● 2026-03-04 09:42:50
● 2026-03-24 04:14:14

○CNAMEmi.66name.com2026-03-04 → 2026-03-24 · 2 obs

○ 2026-03-04 09:42:50
○ 2026-03-24 04:14:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...	-
au51.com	expirens3.hichina.com, expirens4.hichina.com	18 records

✅ Authoritative Response

Server:47.118.199.192

NS records: expirens3.hichina.com, expirens4.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for au51.com (unsigned zone)

⏱️ Timing

Total: 2209ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns23.hichina.com, dns24.hichina.com`
CNAME	1	`expired.hichina.com`
SOA	1	`dns23.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (expirens3.hichina.com, expirens3.hichina.com, expirens3.hichina.com...)

Analysis

IP Addresses

au51.com points to three IPs: 8.218.208.240, 47.76.127.217 and 47.91.170.222.

Other host names, for instance expired.hichina.com, share IP numbers with au51.com.

Name Servers

au51.com is delegated to two name servers ns1.alidns.com and ns2.alidns.com.

au51.com shares the same name server setup as other domains, for instance 378b08a4d10261.beer, pfizerpro.cn, wenmi114.com, 9121f23121019.beer and 02400.loan.

au51.com at least partially shares name servers with other domains, for instance bandwidth.cn, bytechina.com, google-zhcnq.hl.cn, 3peak.com and 33129sh.com.

These name servers are commonly used alongside ns7.alidns.com, ns8.alidns.com, dns19.hichina.com, dns20.hichina.com, dns11.hichina.com and dns12.hichina.com.

Host names with nine IP numbers:

ns1.alidns.com points to: 2408:4009:501::1, 39.96.153.45, 39.96.153.55, 47.118.199.205, 47.118.199.215, 120.76.107.45, 120.76.107.55, 139.224.142.115 and 139.224.142.125.

ns2.alidns.com points to: 2408:4009:501::2, 39.96.153.46, 39.96.153.56, 47.118.199.206, 47.118.199.216, 120.76.107.46, 120.76.107.56, 139.224.142.116 and 139.224.142.126.

au51.com - robtex.com

au51.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`au51.com`

`com`