jsjtzb.com - robtex.com
jsjtzb.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.82.52.253🇨🇳 TJSSYNTCL-AS-AP103.82.52.0/24 Tianjin Shi Shi Ji Hulian Yuntong Network Technology Co., Ltd. | ||||||
| NS | dns7.4cun.com ⭐ | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 61.172.183.74🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC | ||||||
| NS | dns.4cun.com ⚠️ Not in zone NS records | ||||||
| NS | dns4.51dns.top ⚠️ Not in zone NS records | ||||||
| A | 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7🇨🇳 Alibaba-Cloud2408:4005::/33 | ||||||
| A | 219.138.102.210🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang | ||||||
| MX | mx1.sxy.top ⭐ | ||||||
| A | 101.237.133.12🇨🇳 CHINA-1101.237.128.0/20 China Telecom Beijing Co. Ltd. | ||||||
| PTR | outhb2.global-mail.cn | ||||||
| A | 117.50.223.79🇨🇳 CHINA169-BJ117.50.192.0/19 China Telecom Beijing Co. Ltd. | ||||||
| MX | mx.sxy.top(50) | ||||||
| A | 101.237.133.12🇨🇳 CHINA-1101.237.128.0/20 China Telecom Beijing Co. Ltd. | ||||||
| PTR | outhb2.global-mail.cn | ||||||
| TXT | v=spf1 include:spfv.sxy.top -all | ||||||
| SOA | dns.4cun.comadmin@jsjtzb.com serial=1772528380 | ||||||
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=1774387587 | ||||||
Same first word
jsjtzb.com |
Similar names
tjjbzs.cn |
zjjstb.com.cn |
zjstjb.com |
bjztsj.cn |
bjtzsj.net |
zjtsbj.com |
jbzsjt.com |
zjjbst.com |
bzjtjs.com |
bjzsjt.com |
tzjsbj.com |
jjbtzs.com |
zjstbj.com |
bjzjst.com |
zjbtjs.com |
zbsjjt.net |
bjstzj.com |
DNS History
10 records (6 active, 4 former)
●NSdns4.51dns.top2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 21:50:50
● 2026-03-24 21:50:52
●NSdns7.4cun.com2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 21:50:50
● 2026-03-24 21:50:52
●MXmx.sxy.top2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 21:50:50
● 2026-03-24 21:50:52
○MXmx1.4cun.com2016-02-03 → 2020-01-07 · 4 obs
● 2020-01-07 20:31:54
○ 2026-03-24 21:50:50
○ 2026-03-24 21:50:52
●MXmx1.sxy.top2026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 21:50:50
● 2026-03-24 21:50:52
○A103.123.160.1192020-01-07 → 2020-01-07 · 4 obs
● 2020-01-07 20:31:54
○ 2026-03-24 21:50:50
○ 2026-03-24 21:50:52
●A103.82.52.2532026-03-24 → 2026-03-24 · 3 obs
● 2026-03-24 21:50:50
● 2026-03-24 21:50:52
○A162.247.97.502016-02-03 → 2017-02-09 · 5 obs
● 2016-02-03 21:19:52
● 2017-02-09 07:29:28
○ 2020-01-07 20:31:54
○ 2026-03-24 21:50:52
○A58.64.175.2012015-06-27 → 2015-06-27 · 3 obs
○ 2017-02-09 07:29:28
○ 2026-03-24 21:50:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net... | - |
| jsjtzb.com | dns7.4cun.com, dns4.51dns.top | 2 records |
✅ Authoritative Response
Server:219.138.102.210
NS records: dns7.4cun.com, dns4.51dns.top
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jsjtzb.com (unsigned zone)
⏱️ Timing
Total: 1343ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.82.52.253 |
| MX | 2 | mx1.sxy.top (pri: 50), mx.sxy.top (pri: 5) |
| TXT | 1 | v=spf1 include:spfv.sxy.top -all |
| SOA | 1 | dns.4cun.com admin.jsjtzb.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns7.4cun.com, dns7.4cun.com)
Analysis
IP Addresses
jsjtzb.com points to a single IP number: 103.82.52.253.
Name Servers
The domain jsjtzb.com is delegated to three name servers: dns7.4cun.com, dns.4cun.com and dns4.51dns.top.
jsjtzb.com shares name servers with other domains at least partially, for instance jingor.com, bellauta.com, hy-ems.com, ecolot.com.cn and pyszcg.com.
these name servers are commonly used with the name servers dns3.4cun.com, dns8.51dns.top, dns8.4cun.com, dns1.4cun.com, dns2.51dns.top, dns5.4cun.com, dns6.51dns.top, ns3.4cun.com, ns4.4cun.com and ns1.4cun.com.
Host names with two IP numbers:
dns7.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.74.
dns4.51dns.top points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 219.138.102.210.
Names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7: dns7.4cun.com and dns4.51dns.top.
Mail Servers
jsjtzb.com is handled by two mail servers: mx1.sxy.top and mx.sxy.top.
jsjtzb.com shares the same mail server setup as other domains, including cjmri.cn, kndhose.com, lontac.com, hksyrfid.com and beidian.com.cn.
jsjtzb.com shares some mail servers with other domains, including szblx.net, lab-ehs.com and commix.cn.
Host names with two IP numbers: mx1.sxy.top points to 101.237.133.12 and 117.50.223.79.
Host names with one IP number: mx.sxy.top points to 101.237.133.12.
Host names that point to 101.237.133.12: mx1.sxy.top and mx.sxy.top.