`siia.cn`

DNSSEC	⚠️ Not signed
NS	`dns19.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::27^{🇨🇳 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	`dns20.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::28^{🇨🇳 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,}

`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=2035118440

Same first word

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isai.edu.ar

DNS History

6 records (2 active, 4 former)

●NSdns19.hichina.com2026-07-13 → 2026-08-01 · 3 obs

○ 2016-09-16 08:43:46
● 2026-07-13 02:39:20
● 2026-08-01 00:51:20

●NSdns20.hichina.com2026-07-13 → 2026-08-01 · 3 obs

○ 2016-09-16 08:43:46
● 2026-07-13 02:39:20
● 2026-08-01 00:51:20

○NSdns7.hichina.com2015-07-12 → 2016-09-16 · 4 obs

● 2015-07-12 01:48:02
● 2016-09-16 08:43:46
○ 2026-07-13 02:39:20
○ 2026-08-01 00:51:20

○NSdns8.hichina.com2015-07-12 → 2016-09-16 · 4 obs

● 2015-07-12 01:48:02
● 2016-09-16 08:43:46
○ 2026-07-13 02:39:20
○ 2026-08-01 00:51:20

○MXmail.cdu.edu.cn2015-07-12 → 2015-07-12 · 3 obs

● 2015-07-12 01:48:02
○ 2015-11-16 16:02:34
○ 2026-08-01 00:51:20

○A202.115.80.1572015-07-12 → 2015-07-12 · 3 obs

● 2015-07-12 01:48:02
○ 2015-11-16 16:02:34
○ 2026-08-01 00:51:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
siia.cn	dns19.hichina.com, dns20.hichina.com	-

✅ Authoritative Response

Server:139.224.142.108

NS records: dns19.hichina.com, dns20.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for siia.cn (unsigned zone)

⏱️ Timing

Total: 1520ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns20.hichina.com, dns19.hichina.com`
SOA	1	`dns19.hichina.com hostmaster.hichina.com`

Analysis

Name Servers

DNS delegation for siia.cn points to two name servers: dns19.hichina.com and dns20.hichina.com.

The name server configuration of siia.cn is shared with other domains, for instance hao10.cn, rcywl.com, kripso.com and two others.

siia.cn has at least partial name server overlap with other domains, such as rockos.org, xaifc.org, zhongkaohelp.com and two others.

ns7.alidns.com, ns8.alidns.com and dns27.hichina.com — plus 3 other name servers — are commonly paired with these name servers.

Hosts with 9 IP addresses each:

dns19.hichina.com has IP addresses 39.96.153.40, 39.96.153.60 and 47.118.199.200, plus 6 other.

dns20.hichina.com has IP addresses 39.96.153.38, 39.96.153.61 and 47.118.199.198, plus 6 other.

siia.cn - robtex.com

siia.cn

cn