linux-certification-training.com - dns.ninja
linux-certification-training.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 47.206.71.177🇺🇸 ASN-ELIX47.206.0.0/16 | ||||||
| PTR | static-47-206-71-177.mias.fl.frontiernet.net | ||||||
| NS | ns1.cbtdirect.com ⭐ | ||||||
| A | 47.206.71.202🇺🇸 ASN-ELIX47.206.0.0/16 | ||||||
| PTR | static-47-206-71-202.mias.fl.frontiernet.net | ||||||
| NS | ns2.cbtdirect.com | ||||||
| A | 47.206.71.178🇺🇸 ASN-ELIX47.206.0.0/16 | ||||||
| PTR | static-47-206-71-178.mias.fl.frontiernet.net | ||||||
| NS | ns2.smartcertifiy.com ⚠️ Not in parent delegation | ||||||
| NS | ns2.smartcertify.com ⚠️ Not in zone NS records | ||||||
| SOA | ns1.cbtdirect.comadmin serial=10 | ||||||
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=1783096306 | ||||||
Same first word
linux-certification-training.com |
DNS History
7 records (5 active, 2 former)
●NSns1.cbtdirect.com2015-07-19 → 2026-07-03 · 3 obs
● 2015-07-19 05:52:38
● 2026-07-03 16:45:44
○NSns1.smartcertify.com2007-11-10 → 2007-11-10 · 3 obs
○ 2015-07-19 05:52:38
○ 2026-07-03 16:45:44
●NSns2.cbtdirect.com2015-07-19 → 2026-07-03 · 3 obs
● 2015-07-19 05:52:38
● 2026-07-03 16:45:44
●NSns2.smartcertifiy.com2017-03-22 → 2026-07-03 · 9 obs
● 2017-03-22 12:01:16
○ 2020-02-16 19:00:34
○ 2026-04-06 10:40:00
● 2026-04-06 22:52:50
○ 2026-04-14 12:37:24
○ 2026-04-18 21:03:22
● 2026-04-25 23:41:56
● 2026-07-03 16:45:44
●NSns2.smartcertify.com2007-11-10 → 2026-07-03 · 5 obs
○ 2015-07-19 05:52:38
○ 2017-03-22 12:01:16
● 2020-02-16 19:00:34
● 2026-07-03 16:45:44
●A47.206.71.1772020-02-16 → 2026-07-03 · 3 obs
● 2020-02-16 19:00:34
● 2026-07-03 16:45:44
○A71.40.177.2462015-07-19 → 2017-03-22 · 5 obs
● 2015-07-19 05:52:38
● 2017-03-22 12:01:16
○ 2020-02-16 19:00:34
○ 2026-07-03 16:45:44
🔍 DNS Trace
Analysis
IP Addresses
linux-certification-training.com has exactly one IP address — 47.206.71.177.
mcse-certification.com, cbtdirect.com, casp-certification.com plus two other host names have IP numbers in common with linux-certification-training.com.
Name Servers
Four name servers handle the delegation for linux-certification-training.com: ns1.cbtdirect.com, ns2.cbtdirect.com, ns2.smartcertifiy.com and ns2.smartcertify.com.
There is at least partial name server overlap between linux-certification-training.com and other domains — mcse-certification.com, cbtdirect.com, casp-certification.com and two more among them.
These name servers are routinely deployed together with the name servers oz.
ns1.cbtdirect.com → 47.206.71.202 and ns2.cbtdirect.com → 47.206.71.178: one IP number per host name.