`dd.ub.ac`

DNSSEC	⚠️ Not signed
A	3.139.159.151^{🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix}
		PTR	`ec2-3-139-159-151.us-east-2.compute.amazonaws.com`

`ub.ac`

	DNSSEC	⚠️ Not signed
	A	3.139.159.151^{🇺🇸 Amazon3.136.0.0/13 EC2 CMH prefix}
	NS	`l1.ns.divido.org.ub.ac` ⭐
	NS	`l1.ns.divido.org`
	NS	`l2.ns.divido.org`
	TXT	`26e2cd39db437b9d550a5ddfc846fcd327471ed6`
	SOA	`l1.ns.divido.org.ub.ac`admin@divido.org.ub.ac 2013-10-10 #24

Same first word

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DNS History

2 records (1 active, 1 former)

●A3.139.159.1512026-04-04 → 2026-04-04 · 3 obs

○ 2016-04-22 14:49:56
● 2026-04-04 07:10:20
● 2026-04-04 07:10:24

○A50.21.180.1002016-04-21 → 2016-04-22 · 4 obs

● 2016-04-21 11:55:44
● 2016-04-22 14:49:56
○ 2026-04-04 07:10:20
○ 2026-04-04 07:10:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ac	a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac	8 records
ub.ac	l2.ns.divido.org, l1.ns.divido.org	-

✅ Authoritative Response

Server:91.208.95.134

NS records: l2.ns.divido.org, l1.ns.divido.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ub.ac (unsigned zone)

⏱️ Timing

Total: 309ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`3.139.159.151`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.ac, a0.nic.ac, a2.nic.ac...)

Analysis

IP Addresses

dd.ub.ac points to IP number: 3.139.159.151.

Other host names such as org.av.ac, org.spam.sh, divido.org.n.ac, ns.divido.org.am.sh and l1.ns.divido.org.lu.ac share IPs with dd.ub.ac.

dd.ub.ac - robtex.com

dd.ub.ac

ub.ac