51tonghua.com - robtex.com
51tonghua.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.julydns.com | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| PTR | ip-47-97-51-45.defastlink.net | ||||||
| NS | ns2.julydns.com | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ip-162-159-48-223.defastlink.net | ||||||
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=1771291435 | ||||||
Same first word
51tonghua.com |
DNS History
15 records (2 active, 13 former)
○NSdns1.iidns.com2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
○NSdns2.iidns.com2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
○NSdns3.iidns.com2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
○NSdns4.iidns.com2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
○NSdns5.iidns.com2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
○NSdns6.iidns.com2015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
●NSns1.julydns.com2026-03-06 → 2026-03-23 · 3 obs
● 2026-03-06 12:26:16
● 2026-03-23 19:52:06
●NSns2.julydns.com2026-03-06 → 2026-03-23 · 3 obs
● 2026-03-06 12:26:16
● 2026-03-23 19:52:06
○NSwww.51tonghua.com2015-11-16 → 2016-07-02 · 5 obs
● 2015-11-16 12:43:48
● 2016-07-02 04:54:08
○ 2026-03-06 12:26:16
○ 2026-03-23 19:52:06
○MXio.bouncemx.com2015-11-16 → 2016-07-02 · 4 obs
● 2016-07-02 04:54:08
○ 2026-03-06 12:26:16
○ 2026-03-23 19:52:06
○A222.73.44.1742015-07-20 → 2015-07-20 · 3 obs
○ 2015-11-16 12:43:48
○ 2026-03-23 19:52:06
○A70.39.84.2292016-03-10 → 2016-03-10 · 4 obs
● 2016-03-10 07:08:12
○ 2016-07-02 04:54:08
○ 2026-03-23 19:52:06
○A70.39.84.2302015-11-16 → 2015-11-16 · 4 obs
● 2015-11-16 12:43:48
○ 2016-03-10 07:08:12
○ 2026-03-23 19:52:06
○A70.39.84.2512016-07-02 → 2016-07-02 · 4 obs
● 2016-07-02 04:54:08
○ 2026-03-06 12:26:16
○ 2026-03-23 19:52:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 51tonghua.com | ns1.julydns.com, ns2.julydns.com | 2 records |
✅ Authoritative Response
Server:47.97.51.45
NS records: ns1.julydns.com, ns2.julydns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51tonghua.com (unsigned zone)
⏱️ Timing
Total: 690ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.julydns.com, ns2.julydns.com)
Analysis
Name Servers
Two name servers ns1.julydns.com and ns2.julydns.com handle the delegation for 51tonghua.com.
51tonghua.com shares the same name server setup as other domains, for instance 020pcb.com, i96122.com, m-maestro.com, bceiot.com and pavone.com.cn.
51tonghua.com at least partially shares name servers with other domains, for instance whxinhao.com, sf111.cn, ilcs.cn, f1568.com and 15yule.com.
These name servers are commonly used with ns1.judns.com and ns2.judns.com.
Host names with one IP:
ns1.julydns.com points to: 47.97.51.45
ns2.julydns.com points to: 162.159.48.223