zztonghua.com - robtex.com
zztonghua.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.250.168.238🇿🇦 POWERLINE-HK156.250.128.0/17 Digital Core Technology Co., Ltd | ||||||
| NS | a1.share-dns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | a.share-dns.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b1.share-dns.net ⚠️ Not in parent delegation | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1751874397 | ||||||
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=1776082522 | ||||||
Subdomains
mail.zztonghua.com |
Same first word
zztonghua.com |
Similar names
DNS History
12 records (5 active, 7 former)
●NSa.share-dns.com2026-03-05 → 2026-04-13 · 3 obs
● 2026-03-05 20:11:14
● 2026-04-13 12:22:34
●NSa1.share-dns.com2026-03-05 → 2026-04-13 · 3 obs
● 2026-03-05 20:11:14
● 2026-04-13 12:22:34
●NSb.share-dns.net2026-03-05 → 2026-04-13 · 3 obs
● 2026-03-05 20:11:14
● 2026-04-13 12:22:34
●NSb1.share-dns.net2026-03-05 → 2026-04-13 · 3 obs
● 2026-03-05 20:11:14
● 2026-04-13 12:22:34
○NSdns15.hichina.com2017-04-21 → 2017-04-21 · 4 obs
● 2017-04-21 00:53:54
○ 2026-03-05 20:11:14
○ 2026-04-13 12:22:34
○NSdns16.hichina.com2017-04-21 → 2017-04-21 · 4 obs
● 2017-04-21 00:53:54
○ 2026-03-05 20:11:14
○ 2026-04-13 12:22:34
○NSns13.xincache.com2015-06-03 → 2016-09-18 · 4 obs
● 2016-09-18 17:36:42
○ 2017-04-21 00:53:54
○ 2026-04-13 12:22:34
○NSns14.xincache.com2015-06-03 → 2016-09-18 · 4 obs
● 2016-09-18 17:36:42
○ 2017-04-21 00:53:54
○ 2026-04-13 12:22:34
○MXmail.zztonghua.com2015-06-03 → 2016-09-18 · 4 obs
● 2016-09-18 17:36:42
○ 2017-04-21 00:53:54
○ 2026-04-13 12:22:34
○A122.114.126.1732017-04-21 → 2017-04-21 · 4 obs
● 2017-04-21 00:53:54
○ 2026-03-05 20:11:14
○ 2026-04-13 12:22:34
○A122.115.63.1822015-06-03 → 2016-09-18 · 4 obs
● 2016-09-18 17:36:42
○ 2017-04-21 00:53:54
○ 2026-04-13 12:22:34
●A156.250.168.2382026-03-05 → 2026-04-13 · 3 obs
● 2026-03-05 20:11:14
● 2026-04-13 12:22:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| zztonghua.com | b1.share-dns.net, a1.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.53.25
NS records: b1.share-dns.net, a1.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for zztonghua.com (unsigned zone)
⏱️ Timing
Total: 383ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.250.168.238 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (a1.share-dns.com)
Analysis
Hierarchy
The parent of mail.zztonghua.com is zztonghua.com.
IP Addresses
zztonghua.com points to a single IP number: 156.250.168.238.
Other host names, for instance mail.zztonghua.com, share IP numbers with zztonghua.com.
Name Servers
zztonghua.com is delegated to four name servers: a1.share-dns.com, a.share-dns.com, b1.share-dns.net and b.share-dns.net.
zztonghua.com shares name servers with other domains at least partially, for instance xhxtsg.com, pd-lace.com, cncolorcode.com, multi-stadium.com and sdcydzkj.com.
these name servers are commonly used with the name servers a11.share-dns.com, b11.share-dns.net, a5.share-dns.com, b5.share-dns.net, a8.share-dns.com, b8.share-dns.net, a10.share-dns.com, b10.share-dns.net, a12.share-dns.com and b12.share-dns.net.
Host names with one IP number:
a1.share-dns.com points to: 172.64.53.25.
a.share-dns.com points to: 172.64.53.25.
b1.share-dns.net points to: 172.64.52.239.
b.share-dns.net points to: 172.64.52.239.
Host names pointing to 172.64.53.25: a1.share-dns.com and a.share-dns.com.
Host names pointing to 172.64.52.239: b1.share-dns.net and b.share-dns.net.