`chemdatabase.com`

DNSSEC	⚠️ Not signed
NS	`dns7.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::15^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.43^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.63^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.203^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.213^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.43^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.63^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.113^{🇨🇳 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	139.224.142.123^{🇨🇳 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	`dns8.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::16^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.44^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.54^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.204^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.214^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.44^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.54^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.114^{🇨🇳 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	139.224.142.124^{🇨🇳 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,}

`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=1784354692

Same first word

chemdatabase.com

DNS History

5 records (2 active, 3 former)

●NSdns7.hichina.com2026-05-27 → 2026-07-18 · 3 obs

○ 2017-09-05 17:00:46
● 2026-05-27 20:58:14
● 2026-07-18 06:29:36

●NSdns8.hichina.com2026-05-27 → 2026-07-18 · 3 obs

○ 2017-09-05 17:00:46
● 2026-05-27 20:58:14
● 2026-07-18 06:29:36

○NSns.buydomains.com2015-05-21 → 2017-09-05 · 4 obs

● 2015-05-21 01:38:04
● 2017-09-05 17:00:46
○ 2026-05-27 20:58:14
○ 2026-07-18 06:29:36

○A207.148.248.1432015-10-24 → 2017-09-05 · 5 obs

○ 2015-05-21 01:38:04
● 2015-10-24 03:13:12
● 2017-09-05 17:00:46
○ 2026-05-27 20:58:14
○ 2026-07-18 06:29:36

○A50.63.202.1042015-05-21 → 2015-05-21 · 3 obs

● 2015-05-21 01:38:04
○ 2015-10-24 03:13:12
○ 2026-07-18 06:29:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
chemdatabase.com	dns7.hichina.com, dns8.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.43

NS records: dns7.hichina.com, dns8.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for chemdatabase.com (unsigned zone)

⏱️ Timing

Total: 3513ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns7.hichina.com, dns8.hichina.com`
SOA	1	`dns7.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns7.hichina.com, dns7.hichina.com, dns7.hichina.com...)

Analysis

Name Servers

chemdatabase.com is served by two delegated name servers, dns7.hichina.com and dns8.hichina.com.

chemdatabase.com has the same name server delegation as a number of other domains, such as yhcome.net, cqt.me, 1bz.top and two more.

There is at least partial name server overlap between chemdatabase.com and other domains — imec.cn, idcgroup.com.cn, dgtana.com and two more among them.

These name servers tend to appear in combination with the name servers expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.

Host names resolving to 9 IP numbers:

dns7.hichina.com carries IP addresses 39.96.153.43, 39.96.153.63 and 47.118.199.203, with 6 other addresses beyond those.

dns8.hichina.com carries IP addresses 39.96.153.44, 39.96.153.54 and 47.118.199.204, with 6 other addresses beyond those.

chemdatabase.com - robtex.com