nb-help.com - dns.ninja
nb-help.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.158.21.164🇨🇦 TEST45.158.21.0/24 CERA | ||||||
| NS | ns1.cnolnic.net ⭐ | ||||||
| A | 240c:4082:0:5d80::2🇨🇳 Baidu240c:4082::/32 | ||||||
| A | 106.13.136.254🇨🇳 Baidu106.13.128.0/19 AS38365 | ||||||
| A | 182.61.7.97🇨🇳 Baidu182.61.0.0/19 | ||||||
| NS | ns2.cnolnic.net | ||||||
| A | 240c:4081:8000:1702::3🇨🇳 Baidu240c:4081::/32 | ||||||
| A | 106.12.41.177🇨🇳 Baidu106.12.32.0/19 | ||||||
| A | 180.76.132.69🇨🇳 Baidu180.76.128.0/19 | ||||||
| MX | nb-help.com ⭐ | ||||||
| A | 45.158.21.164🇨🇦 TEST45.158.21.0/24 CERA | ||||||
| MX | mxbjm.chinaemail.cn(10) | ||||||
| A | 180.76.132.206🇨🇳 Baidu180.76.128.0/19 | ||||||
| TXT | v=spf1 include:spf.chinaemail.cn -all | ||||||
| SOA | ns1.cnolnic.netroot@cnolnic.net 2006-11-24 #1 | ||||||
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=1783806657 | ||||||
MX for
nb-help.com |
Same first word
nb-help.com |
DNS History
16 records (5 active, 11 former)
●NSns1.cnolnic.net2026-06-13 → 2026-07-11 · 3 obs
● 2026-06-13 05:15:06
● 2026-07-11 21:55:48
○NSns15.xincache.com2015-06-17 → 2016-04-26 · 4 obs
● 2016-04-26 13:38:56
○ 2016-12-11 08:47:06
○ 2026-07-11 21:55:48
○NSns16.xincache.com2015-06-17 → 2016-04-26 · 4 obs
● 2016-04-26 13:38:56
○ 2016-12-11 08:47:06
○ 2026-07-11 21:55:48
○NSns19.xincache.com2016-12-11 → 2017-08-09 · 5 obs
● 2016-12-11 08:47:06
● 2017-08-09 08:43:06
○ 2026-02-22 06:47:40
○ 2026-07-11 21:55:48
●NSns2.cnolnic.net2026-06-13 → 2026-07-11 · 3 obs
● 2026-06-13 05:15:06
● 2026-07-11 21:55:48
○NSns20.xincache.com2016-12-11 → 2017-08-09 · 5 obs
● 2016-12-11 08:47:06
● 2017-08-09 08:43:06
○ 2026-02-22 06:47:40
○ 2026-07-11 21:55:48
○NSns4.myhostadmin.net2026-02-22 → 2026-04-25 · 5 obs
● 2026-02-22 06:47:40
● 2026-04-25 12:02:14
○ 2026-06-13 05:15:06
○ 2026-07-11 21:55:48
○NSns5.myhostadmin.net2026-02-22 → 2026-04-25 · 5 obs
● 2026-02-22 06:47:40
● 2026-04-25 12:02:14
○ 2026-06-13 05:15:06
○ 2026-07-11 21:55:48
○MXmx-n.global-mail.cn2015-06-17 → 2026-04-25 · 4 obs
● 2026-04-25 12:02:14
○ 2026-06-13 05:15:06
○ 2026-07-11 21:55:48
○MXmx1-n.global-mail.cn2015-06-17 → 2026-04-25 · 4 obs
● 2026-04-25 12:02:14
○ 2026-06-13 05:15:06
○ 2026-07-11 21:55:48
●MXmxbjm.chinaemail.cn2026-06-13 → 2026-07-11 · 12 obs
● 2026-06-13 05:15:06
● 2026-06-17 07:44:48
○ 2026-06-20 16:08:12
● 2026-06-22 06:22:12
○ 2026-06-22 09:35:32
● 2026-06-22 18:59:50
○ 2026-06-26 14:15:16
● 2026-06-26 18:04:16
○ 2026-07-04 12:33:46
● 2026-07-05 02:52:32
● 2026-07-11 21:55:48
●MXnb-help.com2026-06-13 → 2026-07-11 · 12 obs
● 2026-06-13 05:15:06
● 2026-06-17 07:44:48
○ 2026-06-20 16:08:12
● 2026-06-22 06:22:12
○ 2026-06-22 09:35:32
● 2026-06-22 18:59:50
○ 2026-06-26 14:15:16
● 2026-06-26 18:04:16
○ 2026-07-04 12:33:46
● 2026-07-05 02:52:32
● 2026-07-11 21:55:48
○A103.21.141.1302026-02-22 → 2026-04-25 · 5 obs
● 2026-02-22 06:47:40
● 2026-04-25 12:02:14
○ 2026-06-13 05:15:06
○ 2026-07-11 21:55:48
○A219.133.35.442015-06-17 → 2016-04-26 · 4 obs
● 2016-04-26 13:38:56
○ 2016-12-11 08:47:06
○ 2026-07-11 21:55:48
○A43.230.142.1252016-12-11 → 2017-08-09 · 5 obs
● 2016-12-11 08:47:06
● 2017-08-09 08:43:06
○ 2026-02-22 06:47:40
○ 2026-07-11 21:55:48
●A45.158.21.1642026-06-13 → 2026-07-11 · 12 obs
● 2026-06-13 05:15:06
● 2026-06-17 07:44:48
○ 2026-06-20 16:08:12
● 2026-06-22 06:22:12
○ 2026-06-22 09:35:32
● 2026-06-22 18:59:50
○ 2026-06-26 14:15:16
● 2026-06-26 18:04:16
○ 2026-07-04 12:33:46
● 2026-07-05 02:52:32
● 2026-07-11 21:55:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net... | - |
| nb-help.com | ns1.cnolnic.net, ns2.cnolnic.net | - |
✅ Authoritative Response
Server:182.61.7.97
NS records: ns1.cnolnic.net, ns2.cnolnic.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nb-help.com (unsigned zone)
⏱️ Timing
Total: 1553ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.158.21.164 |
| NS | 2 | ns1.cnolnic.net, ns2.cnolnic.net |
| MX | 2 | mxbjm.chinaemail.cn (pri: 10), nb-help.com (pri: 5) |
| TXT | 1 | v=spf1 include:spf.chinaemail.cn -all |
| SOA | 1 | ns1.cnolnic.net root.cnolnic.net |
Analysis
Mail Server Role
nb-help.com serves as a mail server for nb-help.com.
mxbjm.chinaemail.cn routinely functions as a mail server together with nb-help.com.
IP Addresses
nb-help.com has exactly one IP address — 45.158.21.164.
cn-colorful.com, mingda-china.com, chinamesser.com plus two other host names have IP numbers in common with nb-help.com.
Name Servers
The NS records for nb-help.com delegate to ns1.cnolnic.net and ns2.cnolnic.net.
The name server configuration of nb-help.com is shared with other domains, for instance y-long.com, icmdc.com, hnzljdzb.com and two others.
ns1.cnolnic.net and ns2.cnolnic.net each resolve to three IP addresses. ns1.cnolnic.net resolves to 106.13.136.254, 182.61.7.97 and 240c:4082:0:5d80::2. ns2.cnolnic.net resolves to 106.12.41.177, 180.76.132.69 and 240c:4081:8000:1702::3.
Mail Servers
nb-help.com delegates mail to two mail servers, namely nb-help.com and mxbjm.chinaemail.cn.
At least some of the mail servers used by nb-help.com are shared with other domains: gsimmi.com, tessled.com, nbgn.cn and two others among them.
These mail servers tend to be used in conjunction with the mail servers mxabjm.chinaemail.cn.
nb-help.com and mxbjm.chinaemail.cn each resolve to one IP number: nb-help.com points to 45.158.21.164 and mxbjm.chinaemail.cn points to 180.76.132.206.