otcsz.com - robtex.com
otcsz.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns21.hichina.com ⭐ | ||||||
| A | 2408:4009:501::29🇨🇳 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 | dns22.hichina.com | ||||||
| A | 2408:4009:501::30🇨🇳 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, | ||||||
| MX | mxbiz1.qq.com ⭐ | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| TXT | v=spf1 include:spf.mail.qq.com ~all | ||||||
| SOA | dns21.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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.netnstld@verisign-grs.com serial=1787210529 | ||||||
Same first word
otcsz.com |
Similar names
stzco.com |
cszto.com |
szotc.com.cn |
ztsco.com |
cozts.com |
czsot.com |
tszco.ir |
tzcos.com |
zcost.cn |
ctosz.com |
toscz.com |
toscz.cz |
ozcst.com |
szotc.cn |
szotc.com |
zcots.com |
costz.com |
zcost.xyz |
otscz.jp |
Previous names
Next names
DNS History
13 records (4 active, 9 former)
●NSdns21.hichina.com2026-08-20 → 2026-08-20 · 3 obs
● 2026-08-20 02:46:36
● 2026-08-20 07:43:14
●NSdns22.hichina.com2026-08-20 → 2026-08-20 · 3 obs
● 2026-08-20 02:46:36
● 2026-08-20 07:43:14
○NSf1g1ns1.dnspod.net2015-05-26 → 2016-09-14 · 5 obs
● 2015-05-26 23:10:32
● 2016-09-14 17:50:20
○ 2026-08-20 02:46:36
○ 2026-08-20 07:43:14
○NSf1g1ns2.dnspod.net2015-05-26 → 2016-09-14 · 5 obs
● 2015-05-26 23:10:32
● 2016-09-14 17:50:20
○ 2026-08-20 02:46:36
○ 2026-08-20 07:43:14
○NSns1.4everdns.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-26 23:10:32
○ 2026-08-20 07:43:14
○NSns2.4everdns.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-26 23:10:32
○ 2026-08-20 07:43:14
○MXmail.otcsz.com2008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-26 23:10:32
○ 2026-08-20 07:43:14
●MXmxbiz1.qq.com2015-10-22 → 2026-08-20 · 3 obs
● 2015-10-22 14:44:54
● 2026-08-20 07:43:14
●MXmxbiz2.qq.com2015-10-22 → 2026-08-20 · 3 obs
● 2015-10-22 14:44:54
● 2026-08-20 07:43:14
○A112.124.3.2012015-05-26 → 2015-05-26 · 4 obs
● 2015-05-26 23:10:32
○ 2015-10-22 14:44:54
○ 2026-08-20 07:43:14
○A114.55.147.2012016-09-14 → 2018-08-20 · 5 obs
● 2016-09-14 17:50:20
● 2018-08-20 02:59:10
○ 2026-08-20 02:46:36
○ 2026-08-20 07:43:14
○A120.25.13.1572015-10-22 → 2016-04-04 · 5 obs
● 2015-10-22 14:44:54
● 2016-04-04 17:04:00
○ 2016-09-14 17:50:20
○ 2026-08-20 07:43:14
○A218.16.122.902008-03-15 → 2008-03-15 · 3 obs
○ 2015-05-26 23:10:32
○ 2026-08-20 07:43:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net... | - |
| otcsz.com | dns21.hichina.com, dns22.hichina.com | 18 records |
✅ Authoritative Response
Server:120.76.107.40
NS records: dns21.hichina.com, dns22.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for otcsz.com (unsigned zone)
⏱️ Timing
Total: 4833ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns21.hichina.com, dns22.hichina.com |
| MX | 2 | mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.mail.qq.com ~all |
| SOA | 1 | dns21.hichina.com hostmaster.hichina.com |
📌 Glue Records Collected
Total: 18
Out-of-bailiwick: 18 (dns21.hichina.com, dns21.hichina.com, dns21.hichina.com...)
Analysis
Name Servers
DNS delegation for otcsz.com points to two name servers: dns21.hichina.com and dns22.hichina.com.
otcsz.com uses the same name servers as several other domains — among them xjqszx.com, guoxk.com, 7oq.cn and two more.
otcsz.com has at least partial name server overlap with other domains, such as wanpipet.com, rraunj.cn, udaren.com and two others.
It is common to see these name servers used together with name servers expirens3.hichina.com and expirens4.hichina.com.
Hostnames that resolve to 9 IP addresses:
dns21.hichina.com has IP addresses 39.96.153.40, 39.96.153.60 and 47.118.199.200, plus 6 other.
dns22.hichina.com has IP addresses 39.96.153.38, 39.96.153.61 and 47.118.199.198, plus 6 other.
Mail Servers
Mail for otcsz.com is handled by two mail servers — mxbiz1.qq.com and mxbiz2.qq.com.
otcsz.com uses an identical mail server configuration to several other domains — among them wtmag.cn, apalus.com, cmbvs.com.cn and two more.
otcsz.com has at least partial mail server overlap with other domains such as cntrus.com, veket.com, chinaguandan.com and two more.