b2b-knowhow.com - dns.ninja
b2b-knowhow.com
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=1786325564 | ||||||
Subdomains
www.b2b-knowhow.com |
Same first word
b2b-knowhow.com |
DNS History
10 records (6 active, 4 former)
●NSns01.domaincontrol.com2026-05-18 → 2026-08-10 · 3 obs
● 2026-05-18 16:31:40
● 2026-08-10 01:57:18
●NSns02.domaincontrol.com2026-05-18 → 2026-08-10 · 3 obs
● 2026-05-18 16:31:40
● 2026-08-10 01:57:18
○NSns1.hans.hosteurope.de2015-06-12 → 2017-07-06 · 4 obs
● 2017-07-06 02:41:58
○ 2026-05-18 16:31:40
○ 2026-08-10 01:57:18
○NSns2.hans.hosteurope.de2015-06-12 → 2017-07-06 · 4 obs
● 2017-07-06 02:41:58
○ 2026-05-18 16:31:40
○ 2026-08-10 01:57:18
●MXalt1.aspmx.l.google.com2015-06-12 → 2026-08-10 · 2 obs
● 2026-08-10 01:57:18
●MXalt2.aspmx.l.google.com2015-06-12 → 2026-08-10 · 2 obs
● 2026-08-10 01:57:18
●MXaspmx.l.google.com2015-06-12 → 2026-08-10 · 2 obs
● 2026-08-10 01:57:18
○A138.201.194.1642017-07-06 → 2017-07-06 · 4 obs
● 2017-07-06 02:41:58
○ 2026-05-18 16:31:40
○ 2026-08-10 01:57:18
●A167.233.10.1372026-05-18 → 2026-08-10 · 3 obs
● 2026-05-18 16:31:40
● 2026-08-10 01:57:18
○A5.9.137.1152015-06-12 → 2016-11-25 · 4 obs
● 2016-11-25 09:09:40
○ 2017-07-06 02:41:58
○ 2026-08-10 01:57:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| b2b-knowhow.com | ns01.domaincontrol.com, ns02.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.68.1
NS records: ns01.domaincontrol.com, ns02.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for b2b-knowhow.com (unsigned zone)
⏱️ Timing
Total: 178ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 167.233.10.137 |
| NS | 2 | ns01.domaincontrol.com, ns02.domaincontrol.com |
| MX | 3 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 3 | google-site-verification=3RLJW51o0VC1OkJ, v=spf1 include:spf.mandrillapp.com ?all... |
| SOA | 1 | ns01.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns01.domaincontrol.com, ns01.domaincontrol.com, ns02.domaincontrol.com...)
Analysis
Hierarchy
b2b-knowhow.com serves as the parent of www.b2b-knowhow.com.
IP Addresses
b2b-knowhow.com points to a single IP number: 167.233.10.137.
Host names like www.b2b-knowhow.com are further examples that share IP numbers with b2b-knowhow.com.
Name Servers
Two name servers handle the delegation for b2b-knowhow.com: ns01.domaincontrol.com and ns02.domaincontrol.com.
b2b-knowhow.com shares its name server setup with other domains, including itsourweekend.com, stewartprocesssupply.com, cabcoa.com and two others.
ns01.domaincontrol.com and ns02.domaincontrol.com both carry two IP addresses. The A records for ns01.domaincontrol.com are 97.74.100.1 and 2603:5:2140::1; the A records for ns02.domaincontrol.com are 173.201.68.1 and 2603:5:2240::1.
Mail Servers
b2b-knowhow.com has three mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
b2b-knowhow.com shares mail servers — at least in part — with other domains, including techrepos.com, sarserramenti.com, abela.ca and two others.
These mail servers are frequently paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.
aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are three hostnames that each resolve to a pair of IP addresses: aspmx.l.google.com to 192.178.155.26 and 2607:f8b0:4004:c09::1a, alt1.aspmx.l.google.com to 192.178.234.27 and 2800:3f0:4003:c14::1b, and alt2.aspmx.l.google.com to 172.253.116.27 and 2a00:1450:400b:c02::1a.