51dlb.com - robtex.com
51dlb.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.38.146.48🇺🇸 PEGTECHINC38.38.128.0/18 PEG TECH INC | ||||||
| NS | ns1.sharesdns.com ⭐ | ||||||
| A | 154.86.21.194🇭🇰 HKCICL-AS-AP154.86.21.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 177.2.31.194🇧🇷 AS-V177.2.0.0/18 | ||||||
| NS | ns2.sharesdns.com | ||||||
| A | 154.86.21.195🇭🇰 HKCICL-AS-AP154.86.21.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 177.2.31.195🇧🇷 AS-V177.2.0.0/18 | ||||||
| SOA | ns1.sharesdns.comadmin@sharesdns.com serial=1778406150 | ||||||
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=1784454527 | ||||||
Subdomains
mail.51dlb.com |
Same first word
51dlb.com |
Similar names
DNS History
15 records (3 active, 12 former)
○NSdns10.hichina.com2016-07-18 → 2016-11-19 · 5 obs
● 2016-07-18 17:18:06
● 2016-11-19 19:29:14
○ 2017-05-27 02:00:44
○ 2026-07-19 10:09:08
○NSdns9.hichina.com2016-07-18 → 2016-11-19 · 5 obs
● 2016-07-18 17:18:06
● 2016-11-19 19:29:14
○ 2017-05-27 02:00:44
○ 2026-07-19 10:09:08
●NSns1.sharesdns.com2026-04-01 → 2026-07-19 · 3 obs
● 2026-04-01 16:36:48
● 2026-07-19 10:09:08
●NSns2.sharesdns.com2026-04-01 → 2026-07-19 · 3 obs
● 2026-04-01 16:36:48
● 2026-07-19 10:09:08
○NSns7.ns365.net2015-06-14 → 2016-03-11 · 4 obs
● 2016-03-11 22:29:10
○ 2016-07-18 17:18:06
○ 2026-07-19 10:09:08
○NSns8.ns365.net2015-06-14 → 2016-03-11 · 4 obs
● 2016-03-11 22:29:10
○ 2016-07-18 17:18:06
○ 2026-07-19 10:09:08
○NSvip1.alidns.com2017-05-27 → 2017-05-27 · 4 obs
● 2017-05-27 02:00:44
○ 2026-04-01 16:36:48
○ 2026-07-19 10:09:08
○NSvip2.alidns.com2017-05-27 → 2017-05-27 · 4 obs
● 2017-05-27 02:00:44
○ 2026-04-01 16:36:48
○ 2026-07-19 10:09:08
○MXmail.51dlb.com2015-06-14 → 2016-03-11 · 4 obs
● 2016-03-11 22:29:10
○ 2016-07-18 17:18:06
○ 2026-07-19 10:09:08
○MXmxn.mxhichina.com2017-05-27 → 2017-05-27 · 4 obs
● 2017-05-27 02:00:44
○ 2026-04-01 16:36:48
○ 2026-07-19 10:09:08
○MXmxw.mxhichina.com2017-05-27 → 2017-05-27 · 4 obs
● 2017-05-27 02:00:44
○ 2026-04-01 16:36:48
○ 2026-07-19 10:09:08
○A113.10.144.532015-06-14 → 2016-03-11 · 4 obs
● 2016-03-11 22:29:10
○ 2016-07-18 17:18:06
○ 2026-07-19 10:09:08
○A123.57.47.1532016-07-18 → 2017-05-27 · 5 obs
● 2016-07-18 17:18:06
● 2017-05-27 02:00:44
○ 2026-04-01 16:36:48
○ 2026-07-19 10:09:08
○A154.202.119.402026-04-01 → 2026-05-02 · 5 obs
● 2026-04-01 16:36:48
● 2026-05-02 06:06:12
○ 2026-06-17 00:36:48
○ 2026-07-19 10:09:08
●A38.38.146.482026-06-17 → 2026-07-19 · 3 obs
● 2026-06-17 00:36:48
● 2026-07-19 10:09:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| 51dlb.com | ns1.sharesdns.com, ns2.sharesdns.com | 4 records |
✅ Authoritative Response
Server:154.86.21.195
NS records: ns1.sharesdns.com, ns2.sharesdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51dlb.com (unsigned zone)
⏱️ Timing
Total: 476ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.38.146.48 |
| NS | 2 | ns1.sharesdns.com, ns2.sharesdns.com |
| SOA | 1 | ns1.sharesdns.com admin.sharesdns.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.sharesdns.com, ns1.sharesdns.com, ns2.sharesdns.com...)
Analysis
Hierarchy
51dlb.com is a parent domain of mail.51dlb.com.
IP Addresses
51dlb.com resolves to just one IP address, 38.38.146.48.
There are other host names — mail.51dlb.com among them — that share IP numbers with 51dlb.com.
Name Servers
DNS delegation for 51dlb.com points to two name servers: ns1.sharesdns.com and ns2.sharesdns.com.
51dlb.com shares its NS records with other domains, for example bjmail.com, jckqyy.com, btyhwj.com and two others.
ns1.sharesdns.com directs to 154.86.21.194 and 177.2.31.194. ns2.sharesdns.com directs to 154.86.21.195 and 177.2.31.195. Each host name carries two IP addresses.