`isu.ac.bd`

DNSSEC	⚠️ Not signed
A	172.93.219.170^{🇸🇬 LEASEWEB-APAC-SIN-11172.93.218.0/23 GreenCloud Singapore DC2}
NS	`ns1.aamranetworks.com` ⭐
		A	203.202.244.2^{🇧🇩 AAMRA-NETWORKS-AS-AP203.202.244.0/24 Aamra Networks Limited 20 Kemal Ataturk Avenue, Safura Tower (12th floor) Banani Commercial Area}
			PTR	`ns1.aamranetworks.com`
NS	`ns2.aamranetworks.com`
		A	202.74.242.2^{🇧🇩 AAMRA-NETWORKS-AS-AP202.74.242.0/24 Aamra Networks Limited 20 Kemal Ataturk Avenue, Safura Tower (12th floor) Banani Commercial Area}
			PTR	`ns2.aamranetworks.com`
NS	`ns3.aamranetworks.com`
		A	202.74.244.5^{🇧🇩 AAMRA-NETWORKS-AS-AP202.74.244.0/24 Aamra Networks Limited 20 Kemal Ataturk Avenue, Safura Tower (12th floor) Banani Commercial Area}
			PTR	`ns3.aamranetworks.com`
NS	`ns4.aamranetworks.com` ⚠️ Not in parent delegation
		A	202.74.240.3^{🇧🇩 AAMRA-NETWORKS-AS-AP202.74.240.0/24 Aamra Networks Limited 20 Kemal Ataturk Avenue, Safura Tower (12th floor) Banani Commercial Area}
			PTR	`ns4.aamranetworks.com`
MX	`aspmx.l.google.com` ⭐
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:4025:402::1a^{🇳🇱 Google2a00:1450:4025::/48}
			PTR	`rb-in-f26.1e100.net`
		A	142.250.102.27^{🇺🇸 Google142.250.102.0/24}
			PTR	`rb-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f27.1e100.net`
			PTR	`ws-in-x1b.1e100.net`
		A	173.194.76.27^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f27.1e100.net`
SOA	`ns1.aamranetworks.com`postmaster@aamranetworks.com 2019-05-02 #40

`ac.bd`

	DNSSEC	⚠️ Not signed
	NS	`dns.bd` ⭐ ⚠️ Not in parent delegation
	NS	`bd-ns.anycast.pch.net` ⚠️ Not in parent delegation
	NS	`jamuna.btcl.net.bd` ⚠️ Not in parent delegation
	NS	`surma.btcl.net.bd` ⚠️ Not in parent delegation
	SOA	`dns.bd`root@dns.bd serial=2025083708

WOT: SAFE (61/100)
WOT: SAFE (63/100)

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DNS History

11 records (10 active, 1 former)

●NSns1.aamranetworks.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●NSns2.aamranetworks.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●NSns3.aamranetworks.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●NSns4.aamranetworks.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●MXalt1.aspmx.l.google.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●MXalt2.aspmx.l.google.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●MXalt3.aspmx.l.google.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●MXalt4.aspmx.l.google.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●MXaspmx.l.google.com2019-12-20 → 2026-05-12 · 2 obs

● 2019-12-20 17:33:52
● 2026-05-12 13:02:24

●A172.93.219.1702026-03-24 → 2026-05-12 · 3 obs

○ 2019-12-20 17:33:52
● 2026-03-24 17:05:06
● 2026-05-12 13:02:24

○A192.185.104.912019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 17:33:52
○ 2026-03-24 17:05:06
○ 2026-05-12 13:02:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
bd	dns.bd, bd-ns.anycast.pch.net, surma.btcl.net.bd, jamuna.btcl.net.bd	8 records
isu.ac.bd	ns1.aamranetworks.com, ns2.aamranetworks.com, ns3.aamranetworks.com	-

✅ Authoritative Response

Server:202.74.242.2

NS records: ns1.aamranetworks.com, ns2.aamranetworks.com, ns3.aamranetworks.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for isu.ac.bd (unsigned zone)

⏱️ Timing

Total: 2271ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`172.93.219.170`
NS	4	`ns1.aamranetworks.com, ns2.aamranetworks.com...`
MX	5	`alt3.aspmx.l.google.com (pri: 10), alt2.aspmx.l.google.com (pri: 5)...`
SOA	1	`ns1.aamranetworks.com postmaster.aamrane`