techbrobd.com - dns.ninja

`techbrobd.com`

DNSSEC	⚠️ Not signed
A	2401:d380:1000::104^{🇧🇩 OPTIMAX-BD-AS-AP2401:d380:1000::/36 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
A	203.112.72.79^{🇧🇩 OPTIMAX-BD-AS-AP203.112.72.0/24 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
NS	`dns1.optimax-bd.com` ⭐
		A	2401:d380:1000::101^{🇧🇩 OPTIMAX-BD-AS-AP2401:d380:1000::/36 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
		A	203.112.72.5^{🇧🇩 OPTIMAX-BD-AS-AP203.112.72.0/24 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
			PTR	`dns1.optimax-bd.com`
NS	`dns2.optimaxbd.net`
		A	2401:d380:1000::102^{🇧🇩 OPTIMAX-BD-AS-AP2401:d380:1000::/36 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
		A	203.112.72.6^{🇧🇩 OPTIMAX-BD-AS-AP203.112.72.0/24 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
			PTR	`dns2.optimaxbd.net`
			PTR	`time.optimaxbd.net`
MX	`mail.techbrobd.com` ⭐
		A	2401:d380:1000::104^{🇧🇩 OPTIMAX-BD-AS-AP2401:d380:1000::/36 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
		A	203.112.72.79^{🇧🇩 OPTIMAX-BD-AS-AP203.112.72.0/24 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
			PTR	`vmail70.optimaxbd.net`
MX	`mx2.optimaxbd.net`⁽¹⁰⁾
		A	114.134.93.10^{🇧🇩 OPTIMAX-BD-AS-AP114.134.93.0/24 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
			PTR	`mx2.optimaxbd.net`
		A	114.134.93.198^{🇧🇩 OPTIMAX-BD-AS-AP114.134.93.0/24 OptiMax Communication Ltd House-06, Road-28, Block-K, Banani}
			PTR	`mx2.optimaxbd.net`
TXT	`v=spf1 ip4:203.112.72.79 ip4:114.134.93.18 ip4:203.112.72.23 ip4:203.112.72.2...`
SOA	`dns1.optimax-bd.com`admin@optimax-bd.com 2026-06-25 #25

`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=1784142987

Subdomains

mail.techbrobd.com

Same first word

techbrobd.com

DNS History

8 records (6 active, 2 former)

●NSdns1.optimax-bd.com2019-12-15 → 2026-07-15 · 2 obs

● 2019-12-15 01:31:06
● 2026-07-15 19:22:54

●NSdns2.optimaxbd.net2019-12-15 → 2026-07-15 · 2 obs

● 2019-12-15 01:31:06
● 2026-07-15 19:22:54

●MXmail.techbrobd.com2019-12-15 → 2026-07-15 · 2 obs

● 2019-12-15 01:31:06
● 2026-07-15 19:22:54

●MXmx2.optimaxbd.net2026-02-16 → 2026-07-15 · 3 obs

○ 2019-12-15 01:31:06
● 2026-02-16 20:48:34
● 2026-07-15 19:22:54

○A203.112.72.172019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 01:31:06
○ 2026-02-16 20:48:34
○ 2026-07-15 19:22:54

○A203.112.72.732026-02-16 → 2026-02-16 · 4 obs

○ 2019-12-15 01:31:06
● 2026-02-16 20:48:34
○ 2026-06-25 17:47:30
○ 2026-07-15 19:22:54

●A203.112.72.792026-06-25 → 2026-07-15 · 3 obs

○ 2026-02-16 20:48:34
● 2026-06-25 17:47:30
● 2026-07-15 19:22:54

●A2401:d380:1000::1042026-02-16 → 2026-07-15 · 3 obs

○ 2019-12-15 01:31:06
● 2026-02-16 20:48:34
● 2026-07-15 19:22:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net...	-
techbrobd.com	dns2.optimaxbd.net, dns1.optimax-bd.com	1 record

✅ Authoritative Response

Server:203.112.72.5

NS records: dns2.optimaxbd.net, dns1.optimax-bd.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techbrobd.com (unsigned zone)

⏱️ Timing

Total: 1394ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.112.72.79`
AAAA	1	`2401:d380:1000::104`
NS	2	`dns2.optimaxbd.net, dns1.optimax-bd.com`
MX	2	`mx2.optimaxbd.net (pri: 10), mail.techbrobd.com (pri: 5)`
TXT	1	`v=spf1 ip4:203.112.72.79 ip4:114.134.93.`
SOA	1	`dns1.optimax-bd.com admin.optimax-bd.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (dns1.optimax-bd.com)

Analysis

Hierarchy

techbrobd.com is a parent domain of mail.techbrobd.com.

IP Addresses

techbrobd.com directs to two IP numbers, 203.112.72.79 and 2401:d380:1000::104

Among the host names that share IP numbers with techbrobd.com are shmibd.com, mail.marsclassicwearltd.com, vmail70.optimaxbd.net and two others.

Name Servers

DNS delegation for techbrobd.com points to two name servers: dns1.optimax-bd.com and dns2.optimaxbd.net.

techbrobd.com has the same name server delegation as a number of other domains, such as optimax-bd.com, nts-bd.com, rexholm.net and two more.

techbrobd.com shares at least some of its name servers with other domains, including cvdhaka.com, 95.134.114.in-addr.arpa, 91.134.114.in-addr.arpa and two others.

These name servers are frequently paired with the name servers dns1.optimaxbd.net, ns2.ranksitt.net and dns2.optimaxbd.com.

dns1.optimax-bd.com directs to 203.112.72.5 and 2401:d380:1000::101. dns2.optimaxbd.net directs to 203.112.72.6 and 2401:d380:1000::102. Each host name carries two IP addresses.

Mail Servers

The MX records for techbrobd.com point to two mail servers: mail.techbrobd.com and mx2.optimaxbd.net.

techbrobd.com shares at least some of its mail servers with other domains — for example miragetextile.net, marsclassicwearltd.com, europastyle-bd.com and two more.

It is common to find these mail servers paired with mail servers mail.miragetextile.net, mail.europastyle-bd.com, mail.yccgroupbd.com and 5 more.

mail.techbrobd.com directs to 203.112.72.79 and 2401:d380:1000::104. mx2.optimaxbd.net directs to 114.134.93.10 and 114.134.93.198. Each host name carries two IP addresses.