51online.com - robtex.com
51online.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 149.28.121.93🇺🇸 AS-VULTR149.28.112.0/20 Vultr Assigned Prefix | ||||||
| PTR | 149.28.121.93.vultrusercontent.com | ||||||
| NS | ns1.dnparking.com ⚠️ Not in zone NS records | ||||||
| A | 61.145.122.243🇨🇳 CHINANET-BACKBONE61.144.0.0/15 China Telecom Corporation | ||||||
| NS | ns2.dnparking.com ⚠️ Not in zone NS records | ||||||
| A | 61.145.122.243🇨🇳 CHINANET-BACKBONE61.144.0.0/15 China Telecom Corporation | ||||||
| NS | ns3.dnparking.com ⚠️ Not in zone NS records | ||||||
| A | 120.31.62.117 | ||||||
| NS | ns4.dnparking.com ⚠️ Not in zone NS records | ||||||
| A | 120.31.62.117 | ||||||
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=1776205752 | ||||||
Previously MX for
51online.com |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSns1.dnparking.com2026-04-06 → 2026-04-14 · 2 obs
● 2026-04-06 06:16:10
● 2026-04-14 22:34:32
● 2026-04-14 22:34:32
●NSns2.dnparking.com2026-04-06 → 2026-04-14 · 2 obs
● 2026-04-06 06:16:10
● 2026-04-14 22:34:32
● 2026-04-14 22:34:32
●NSns3.dnparking.com2026-04-06 → 2026-04-14 · 2 obs
● 2026-04-06 06:16:10
● 2026-04-14 22:34:32
● 2026-04-14 22:34:32
●NSns4.dnparking.com2026-04-06 → 2026-04-14 · 2 obs
● 2026-04-06 06:16:10
● 2026-04-14 22:34:32
● 2026-04-14 22:34:32
○MX51online.com2015-05-19 → 2019-03-20 · 4 obs
● 2015-05-19 17:28:34
● 2019-03-20 20:52:16
○ 2026-04-06 06:16:10
○ 2026-04-14 22:34:32
● 2019-03-20 20:52:16
○ 2026-04-06 06:16:10
○ 2026-04-14 22:34:32
○A103.233.98.402015-05-19 → 2015-05-19 · 3 obs
● 2015-05-19 17:28:34
○ 2026-04-06 06:16:10
○ 2026-04-14 22:34:32
○ 2026-04-06 06:16:10
○ 2026-04-14 22:34:32
●A149.28.121.932026-04-06 → 2026-04-14 · 3 obs
○ 2015-05-19 17:28:34
● 2026-04-06 06:16:10
● 2026-04-14 22:34:32
● 2026-04-06 06:16:10
● 2026-04-14 22:34:32
🔍 DNS Trace
Analysis
IP Addresses
51online.com points to a single IP number: 149.28.121.93.
Other host names, for instance 360mf.cn, www.b2btrade.com, booyoung.com, munan.com and www.www777me.com share IP numbers with 51online.com.
Name Servers
51online.com is delegated to four name servers: ns1.dnparking.com, ns2.dnparking.com, ns3.dnparking.com and ns4.dnparking.com.
51online.com at least partially shares name servers with other domains, for instance ctds.com, 138qb.cn, 0ady.cn, amaker.com and boldstar.com.
Host names pointing to 61.145.122.243: ns1.dnparking.com and ns2.dnparking.com.
Host names pointing to 120.31.62.117: ns3.dnparking.com and ns4.dnparking.com.