tjbhca.com - robtex.com
tjbhca.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | tjbhca.com ⭐ | ||||||
| NS | ns55.szhot.com ⚠️ Not in zone NS records | ||||||
| A | 219.133.55.51🇨🇳 CHINANET-BACKBONE219.128.0.0/13 China Telecom Global Limited | ||||||
| NS | ns56.szhot.com ⚠️ Not in zone NS records | ||||||
| A | 219.133.55.51🇨🇳 CHINANET-BACKBONE219.128.0.0/13 China Telecom Global Limited | ||||||
| MX | mail.tjbhca.com ⭐ | ||||||
| A | 221.239.19.12🇨🇳 CHINATELECOM-TJ-AS-AP221.239.19.0/24 ASN for TIANJIN Provincial Net of CT | ||||||
| PTR | mail.tjbhca.com | ||||||
| SOA | tjbhca.comtjbhca@com serial=42 | ||||||
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=1786780959 | ||||||
NS for
Subdomains
Same first word
tjbhca.com |
Similar names
DNS History
6 records (4 active, 2 former)
○NSns1.tjbhca.com2017-10-18 → 2017-10-18 · 3 obs
○ 2026-03-26 14:45:28
○ 2026-08-15 08:11:56
○NSns2.tjbhca.com2017-10-18 → 2017-10-18 · 3 obs
○ 2026-03-26 14:45:28
○ 2026-08-15 08:11:56
●NSns55.szhot.com2026-03-26 → 2026-08-15 · 3 obs
● 2026-03-26 14:45:28
● 2026-08-15 08:11:56
●NSns56.szhot.com2026-03-26 → 2026-08-15 · 3 obs
● 2026-03-26 14:45:28
● 2026-08-15 08:11:56
●NStjbhca.com2026-03-26 → 2026-08-15 · 3 obs
● 2026-03-26 14:45:28
● 2026-08-15 08:11:56
●MXmail.tjbhca.com2017-10-18 → 2026-08-15 · 2 obs
● 2026-08-15 08:11:56
🔍 DNS Trace
Analysis
Hierarchy
tjbhca.com serves as the parent of ns2.tjbhca.com and mail.tjbhca.com.
Name Server Role
The domains ns2.tjbhca.com, mail.tjbhca.com and tjbhca.com all delegate to tjbhca.com as a name server.
ns55.szhot.com and ns56.szhot.com are often used as name servers in combination with tjbhca.com.
Name Servers
tjbhca.com delegates authority to three name servers — tjbhca.com, ns55.szhot.com and ns56.szhot.com.
At least some of tjbhca.com's name servers are shared with other domains, for example ns2.tjbhca.com, amos-sweets.com, wisboost.com and two more.
It is common for these name servers to be used in conjunction with the name servers shigfc.com.cn, greenway-battery.com and gjrdjj.com.
ns55.szhot.com and ns56.szhot.com share one IP address between them — 219.133.55.51.
These two host names — ns55.szhot.com and ns56.szhot.com — each point to 219.133.55.51 IP addresses.
Mail Servers
tjbhca.com uses one mail server — mail.tjbhca.com.
There is one IP number for mail.tjbhca.com: 221.239.19.12.