knowhow.cc - dns.ninja
knowhow.cc
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.240.170.208🇺🇸 EIGI162.240.0.0/15 1958 South 950 East Provo UT 84606 United States | ||||||
| PTR | server-602517.leitner.net | ||||||
| NS | ns1.server-602517.leitner.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.240.170.208🇺🇸 EIGI162.240.0.0/15 1958 South 950 East Provo UT 84606 United States | ||||||
| PTR | server-602517.leitner.net | ||||||
| NS | ns1.leitner.net ⚠️ Not in zone NS records | ||||||
| A | 162.240.170.208🇺🇸 EIGI162.240.0.0/15 1958 South 950 East Provo UT 84606 United States | ||||||
| PTR | server-602517.leitner.net | ||||||
| NS | ns2.leitner.net ⚠️ Not in zone NS records | ||||||
| A | 162.240.170.208🇺🇸 EIGI162.240.0.0/15 1958 South 950 East Provo UT 84606 United States | ||||||
| PTR | server-602517.leitner.net | ||||||
| NS | ns2.server-602517.leitner.net ⚠️ Not in parent delegation | ||||||
| A | 162.240.170.208🇺🇸 EIGI162.240.0.0/15 1958 South 950 East Provo UT 84606 United States | ||||||
| PTR | server-602517.leitner.net | ||||||
| MX | knowhow.cc ⭐ | ||||||
| A | 162.240.170.208🇺🇸 EIGI162.240.0.0/15 1958 South 950 East Provo UT 84606 United States | ||||||
| PTR | server-602517.leitner.net | ||||||
| SOA | ns1.server-602517.leitner.netroot@server-602517.leitner.net 2026-05-10 #1 | ||||||
cc
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ac1.nstld.com ⭐ | ||||||
| NS | ac2.nstld.com | ||||||
| NS | ac3.nstld.com | ||||||
| NS | ac4.nstld.com | ||||||
| SOA | ac1.nstld.cominfo@verisign-grs.com serial=1784997790 | ||||||
MX for
knowhow.cc |
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns1.leitner.net2015-08-22 → 2026-07-25 · 2 obs
● 2026-07-25 16:55:12
●NSns1.server-602517.leitner.net2026-02-14 → 2026-07-25 · 3 obs
● 2026-02-14 20:24:10
● 2026-07-25 16:55:12
●NSns2.leitner.net2015-08-22 → 2026-07-25 · 2 obs
● 2026-07-25 16:55:12
●NSns2.server-602517.leitner.net2026-02-14 → 2026-07-25 · 3 obs
● 2026-02-14 20:24:10
● 2026-07-25 16:55:12
●MXknowhow.cc2015-08-22 → 2026-07-25 · 2 obs
● 2026-07-25 16:55:12
●A162.240.170.2082026-02-14 → 2026-07-25 · 3 obs
● 2026-02-14 20:24:10
● 2026-07-25 16:55:12
○A198.57.233.642015-08-22 → 2017-04-02 · 4 obs
● 2017-04-02 17:09:26
○ 2026-02-14 20:24:10
○ 2026-07-25 16:55:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cc | ac3.nstld.com, ac1.nstld.com, ac4.nstld.com, ac2.nstld.com | - |
| knowhow.cc | ns2.leitner.net, ns1.leitner.net | - |
✅ Authoritative Response
Server:162.240.170.208
NS records: ns2.leitner.net, ns1.leitner.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowhow.cc (unsigned zone)
⏱️ Timing
Total: 474ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.240.170.208 |
| NS | 2 | ns1.server-602517.leitner.net, ns2.server-602517.leitner.net |
| MX | 1 | knowhow.cc (pri: 0) |
| SOA | 1 | ns1.server-602517.leitner.net root.serve |
Analysis
Mail Server Role
knowhow.cc acts as its own mail server.
IP Addresses
knowhow.cc points to a single IP number: 162.240.170.208.
Additional host names — ns1.server-602517.leitner.net, brainpower.at, live-internet-tv.com and two others — share IP numbers with knowhow.cc.
Name Servers
knowhow.cc has four authoritative name servers: ns1.leitner.net, ns2.leitner.net, ns1.server-602517.leitner.net and ns2.server-602517.leitner.net.
knowhow.cc has at least partial name server overlap with other domains, such as lebenselementhaus.com, server-602517.leitner.net, herbertleitner.com and two others.
ns1.leitner.net, ns2.leitner.net, ns1.server-602517.leitner.net and ns2.server-602517.leitner.net each point to one IP number, which is 162.240.170.208 in every case.
The host names ns1.leitner.net, ns2.leitner.net, ns1.server-602517.leitner.net and ns2.server-602517.leitner.net all point to 162.240.170.208.
Mail Servers
knowhow.cc has a single mail server: knowhow.cc itself.
knowhow.cc carries a single IP number, which is 162.240.170.208.