youdaochem.com - robtex.com

youdaochem.com

DNSSEC⚠️ Not signed
NSdns15.hichina.com ⭐
A2408:4009:501::23🇨🇳 Alibaba-Cloud2408:4009:501::/48
A39.96.153.42🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A39.96.153.52🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A47.118.199.202🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A47.118.199.212🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A120.76.107.42🇨🇳 Alibaba-Cloud120.76.0.0/17
A120.76.107.52🇨🇳 Alibaba-Cloud120.76.0.0/17
A139.224.142.112🇨🇳 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,
A139.224.142.122🇨🇳 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,
NSdns16.hichina.com
A2408:4009:501::24🇨🇳 Alibaba-Cloud2408:4009:501::/48
A39.96.153.41🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A39.96.153.51🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC
A47.118.199.201🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A47.118.199.211🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.
A120.76.107.41🇨🇳 Alibaba-Cloud120.76.0.0/17
A120.76.107.51🇨🇳 Alibaba-Cloud120.76.0.0/17
A139.224.142.111🇨🇳 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,
A139.224.142.121🇨🇳 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,
MXmxbiz1.qq.com ⭐
MXmxbiz2.qq.com(10)
TXTv=spf1 include:spf.mail.qq.com ~all
SOAdns15.hichina.comhostmaster@hichina.com 2026-01-09 #13

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778402776

Same first word

youdaochem.com

DNS History

11 records (4 active, 7 former)

2017201820192020202120222023202420252026NSdns15.hichina.comdns16.hichina.comns1.myhostadmin.netns2.myhostadmin.netns3.myhostadmin.netns4.myhostadmin.netns5.myhostadmin.netns6.myhostadmin.netMXmxbiz1.qq.commxbiz2.qq.commx.ym.163.com
●NSdns15.hichina.com2026-04-09 → 2026-05-10 · 3 obs
○ 2017-10-04 04:35:22
● 2026-04-09 04:33:52
● 2026-05-10 08:58:48
●NSdns16.hichina.com2026-04-09 → 2026-05-10 · 3 obs
○ 2017-10-04 04:35:22
● 2026-04-09 04:33:52
● 2026-05-10 08:58:48
○NSns1.myhostadmin.net2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
○NSns2.myhostadmin.net2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
○NSns3.myhostadmin.net2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
○NSns4.myhostadmin.net2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
○NSns5.myhostadmin.net2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
○NSns6.myhostadmin.net2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
○MXmx.ym.163.com2016-12-16 → 2017-10-04 · 4 obs
● 2016-12-16 00:16:56
● 2017-10-04 04:35:22
○ 2026-04-09 04:33:52
○ 2026-05-10 08:58:48
●MXmxbiz1.qq.com2026-04-09 → 2026-05-10 · 3 obs
○ 2017-10-04 04:35:22
● 2026-04-09 04:33:52
● 2026-05-10 08:58:48
●MXmxbiz2.qq.com2026-04-09 → 2026-05-10 · 3 obs
○ 2017-10-04 04:35:22
● 2026-04-09 04:33:52
● 2026-05-10 08:58:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net...-
youdaochem.comdns15.hichina.com, dns16.hichina.com18 records

✅ Authoritative Response

Server:120.76.107.42

NS records: dns15.hichina.com, dns16.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for youdaochem.com (unsigned zone)

⏱️ Timing

Total: 704ms | Queries: -

📄 Records

TypeCountSample Data
NS2dns15.hichina.com, dns16.hichina.com
MX2mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)
TXT1v=spf1 include:spf.mail.qq.com ~all
SOA1dns15.hichina.com hostmaster.hichina.com

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns15.hichina.com, dns15.hichina.com, dns15.hichina.com...)

Analysis

Name Servers

youdaochem.com is delegated to two name servers: dns15.hichina.com and dns16.hichina.com.

youdaochem.com uses the same name server setup as other domains, for instance haisik.com, laostudy.com, tbiks.com, juying.vip and xp666.com.

youdaochem.com shares name servers with other domains at least partially; for example cebuditw.top, domainsir.com, barmi.cn and gzhangyu.com.

these name servers are commonly used together with expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers: dns15.hichina.com points to 2408:4009:501::23, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122; dns16.hichina.com points to 2408:4009:501::24, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.

Mail Servers

youdaochem.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

youdaochem.com shares the same mail server setup as other domains, including xx-g.com, amelech.com, xcgage.com, ibanbu.com and rstpay.com.

youdaochem.com shares some mail servers with other domains, for example 6137.net, gzstrs.org, iofirst.com and chorders.com.