`optimum-z.com`

DNSSEC	⚠️ Not signed
A	122.155.165.102^{🇹🇭 NTPCL-AS-AP122.155.165.0/24 CAT Telecom Public Company Limited 13th CAT TELECOM TOWER NEW ROAD SRIPHRAYA BANGRAK BANGKOK THAILAND}
		PTR	`ns12.thaimonster.com`
NS	`ns.optimum-z.com` ⭐ ⚠️ Not in parent delegation
		A	122.155.165.102^{🇹🇭 NTPCL-AS-AP122.155.165.0/24 CAT Telecom Public Company Limited 13th CAT TELECOM TOWER NEW ROAD SRIPHRAYA BANGRAK BANGKOK THAILAND}
			PTR	`ns12.thaimonster.com`
NS	`ns1.thaimonster.com` ⚠️ Not in zone NS records
		A	122.155.165.91^{🇹🇭 NTPCL-AS-AP122.155.165.0/24 CAT Telecom Public Company Limited 13th CAT TELECOM TOWER NEW ROAD SRIPHRAYA BANGRAK BANGKOK THAILAND}
			PTR	`ns1.thaimonster.com`
NS	`ns12.thaimonster.com` ⚠️ Not in zone NS records
		A	122.155.165.102^{🇹🇭 NTPCL-AS-AP122.155.165.0/24 CAT Telecom Public Company Limited 13th CAT TELECOM TOWER NEW ROAD SRIPHRAYA BANGRAK BANGKOK THAILAND}
			PTR	`ns12.thaimonster.com`
MX	`mail.optimum-z.com` ⭐
SOA	`ns.optimum-z.com`aungkana@optimum-z.com serial=1550048852

`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.net`nstld@verisign-grs.com serial=1775988632

Subdomains

ns.optimum-z.com

Same first word

optimum-z.com

DNS History

6 records (5 active, 1 former)

●NSns.optimum-z.com2015-06-26 → 2026-04-12 · 2 obs

● 2015-06-26 23:19:58
● 2026-04-12 10:33:28

●NSns1.thaimonster.com2026-03-09 → 2026-04-12 · 3 obs

○ 2015-06-26 23:19:58
● 2026-03-09 04:19:50
● 2026-04-12 10:33:28

●NSns12.thaimonster.com2026-03-09 → 2026-04-12 · 3 obs

○ 2015-06-26 23:19:58
● 2026-03-09 04:19:50
● 2026-04-12 10:33:28

●MXmail.optimum-z.com2015-06-26 → 2026-04-12 · 6 obs

● 2015-06-26 23:19:58
● 2016-06-26 17:29:10
○ 2026-03-09 04:19:50
○ 2026-04-11 06:08:26
● 2026-04-12 10:33:24
● 2026-04-12 10:33:28

●A122.155.165.1022015-11-09 → 2026-04-12 · 6 obs

○ 2015-06-26 23:19:58
● 2015-11-09 01:54:52
● 2026-04-10 02:43:54
○ 2026-04-11 06:08:26
● 2026-04-12 10:33:24
● 2026-04-12 10:33:28

○A122.155.165.952015-06-26 → 2015-06-26 · 3 obs

● 2015-06-26 23:19:58
○ 2015-11-09 01:54:52
○ 2026-04-12 10:33:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, h.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...	-
optimum-z.com	ns1.thaimonster.com, ns12.thaimonster.com	2 records

✅ Authoritative Response

Server:122.155.165.102

NS records: ns1.thaimonster.com, ns12.thaimonster.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimum-z.com (unsigned zone)

⏱️ Timing

Total: 543ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	1	`mail.optimum-z.com (pri: 10)`
SOA	1	`ns.optimum-z.com aungkana.optimum-z.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.thaimonster.com, ns12.thaimonster.com)

Analysis

Hierarchy

optimum-z.com is the parent of ns.optimum-z.com.

IP Addresses

optimum-z.com points to a single IP number: 122.155.165.102.

other host names for instance ns.optimum-z.com, ns.topmould.co.th, mail.originator.co.th, originator.co.th and ns.sigmasolutions.co.th share IP numbers with optimum-z.com.

Name Servers

optimum-z.com is delegated to three name servers: ns.optimum-z.com, ns12.thaimonster.com and ns1.thaimonster.com.

optimum-z.com at least partially shares name servers with other domains, for instance bright.co.th, accsol.co.th, schavakon.com, asah.co.th and samcoseiki.com.

These name servers are often used together with the name servers ns9.thaimonster.com, ns11.thaimonster.com, ns5.thaimonster.com, ns89.thaimonster.com, ns2.thaimonster.com, ns.seed.or.th, ns.nittayathaicurry.com, ns.bangkokfoam.co.th, ns.mmm-digital.com and ns.fancyworld.co.th.

Host names with a single IP address:

ns.optimum-z.com points to: 122.155.165.102.

ns12.thaimonster.com points to: 122.155.165.102.

ns1.thaimonster.com points to: 122.155.165.91.

Host names pointing to 122.155.165.102: ns.optimum-z.com, ns12.thaimonster.com.

Mail Servers

optimum-z.com is handled by a single mail server, mail.optimum-z.com.

optimum-z.com - robtex.com

optimum-z.com

com