`lib4248.lib.disco.ac`

DNSSEC	⚠️ Not signed
A	18.161.205.25^{🇺🇸 Amazon18.161.204.0/23}
		PTR	`server-18-161-205-25.gig51.r.cloudfront.net`
A	18.161.205.50^{🇺🇸 Amazon18.161.204.0/23}
A	18.161.205.77^{🇺🇸 Amazon18.161.204.0/23}
A	18.161.205.89^{🇺🇸 Amazon18.161.204.0/23}

`lib.disco.ac`

	DNSSEC	⚠️ Not signed
	A	18.161.205.25^{🇺🇸 Amazon18.161.204.0/23}
	A	18.161.205.50^{🇺🇸 Amazon18.161.204.0/23}
	A	18.161.205.77^{🇺🇸 Amazon18.161.204.0/23}
	A	18.161.205.89^{🇺🇸 Amazon18.161.204.0/23}

DNS History

40 records (4 active, 36 former)

○A108.139.29.272026-02-16 → 2026-03-22 · 11 obs

● 2026-02-16 04:44:58
○ 2026-02-19 06:25:56
○ 2026-03-14 08:37:12
● 2026-03-14 12:36:24
○ 2026-03-14 14:33:38
● 2026-03-14 15:41:50
○ 2026-03-14 17:22:48
○ 2026-03-21 13:11:06
● 2026-03-22 17:35:18
○ 2026-03-22 21:48:26
○ 2026-04-11 23:07:18

○A108.139.29.352026-02-16 → 2026-03-22 · 11 obs

○A108.139.29.582026-02-16 → 2026-03-22 · 11 obs

○A108.139.29.682026-02-16 → 2026-03-22 · 11 obs

○A13.225.143.1022026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 06:05:06
● 2026-04-03 11:52:14
○ 2026-04-04 00:32:08
○ 2026-04-11 23:07:18

○A13.225.143.1162026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 06:05:06
● 2026-04-03 11:52:14
○ 2026-04-04 00:32:08
○ 2026-04-11 23:07:18

○A13.225.143.292026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 06:05:06
● 2026-04-03 11:52:14
○ 2026-04-04 00:32:08
○ 2026-04-11 23:07:18

○A13.225.143.702026-04-03 → 2026-04-03 · 4 obs

○ 2026-04-03 06:05:06
● 2026-04-03 11:52:14
○ 2026-04-04 00:32:08
○ 2026-04-11 23:07:18

○A13.227.107.1142026-03-28 → 2026-04-10 · 30 obs

○ 2026-03-28 08:57:40
● 2026-03-28 11:52:32
● 2026-03-28 16:31:00
○ 2026-03-29 02:06:18
● 2026-03-29 05:05:46
○ 2026-03-29 08:27:20
○ 2026-03-31 03:25:38
● 2026-03-31 11:23:34
○ 2026-03-31 12:32:48
○ 2026-03-31 13:07:56
● 2026-03-31 23:34:38
● 2026-04-01 07:24:58
○ 2026-04-02 08:41:52
○ 2026-04-02 09:26:10
● 2026-04-02 16:41:58
○ 2026-04-03 01:24:34
○ 2026-04-04 12:10:12
● 2026-04-05 04:02:10
● 2026-04-05 05:20:18
○ 2026-04-05 19:04:12
● 2026-04-06 09:17:46
○ 2026-04-06 09:56:40
○ 2026-04-07 00:52:14
● 2026-04-07 15:19:04
○ 2026-04-07 22:05:50
○ 2026-04-09 22:50:36
● 2026-04-10 00:34:12
● 2026-04-10 11:26:20
○ 2026-04-10 19:21:22
○ 2026-04-11 23:07:18

○A13.227.107.1242026-03-28 → 2026-04-10 · 30 obs

○A13.227.107.412026-03-28 → 2026-04-10 · 30 obs

○A13.227.107.522026-03-28 → 2026-04-10 · 30 obs

●A18.161.205.252026-04-11 → 2026-04-11 · 3 obs

○ 2026-04-11 01:20:54
● 2026-04-11 23:07:14
● 2026-04-11 23:07:18

●A18.161.205.502026-04-11 → 2026-04-11 · 3 obs

○ 2026-04-11 01:20:54
● 2026-04-11 23:07:14
● 2026-04-11 23:07:18

●A18.161.205.772026-04-11 → 2026-04-11 · 3 obs

○ 2026-04-11 01:20:54
● 2026-04-11 23:07:14
● 2026-04-11 23:07:18

●A18.161.205.892026-04-11 → 2026-04-11 · 3 obs

○ 2026-04-11 01:20:54
● 2026-04-11 23:07:14
● 2026-04-11 23:07:18

○A18.65.3.1032026-02-28 → 2026-03-01 · 11 obs

○ 2026-02-28 03:51:40
● 2026-02-28 10:47:08
○ 2026-02-28 17:54:48
○ 2026-02-28 18:44:48
● 2026-02-28 20:25:16
○ 2026-03-01 00:00:28
○ 2026-03-01 10:15:24
● 2026-03-01 12:14:32
● 2026-03-01 13:11:36
○ 2026-03-01 14:56:46
○ 2026-04-11 23:07:18

○A18.65.3.1042026-02-28 → 2026-03-01 · 11 obs

○A18.65.3.372026-02-28 → 2026-03-01 · 11 obs

○A18.65.3.62026-02-28 → 2026-03-01 · 11 obs

○A3.170.42.1052026-02-19 → 2026-03-28 · 43 obs

○ 2026-02-16 04:44:58
● 2026-02-19 06:25:56
○ 2026-02-19 17:05:18
○ 2026-02-20 06:44:04
● 2026-02-20 11:30:56
○ 2026-02-20 13:18:32
○ 2026-02-20 21:53:20
● 2026-02-21 15:24:40
○ 2026-02-21 19:04:06
○ 2026-03-02 21:55:14
● 2026-03-03 01:37:30
○ 2026-03-03 02:32:06
○ 2026-03-05 02:49:18
● 2026-03-05 03:52:06
○ 2026-03-05 04:26:04
○ 2026-03-05 10:41:42
● 2026-03-05 12:27:38
○ 2026-03-05 23:28:10
○ 2026-03-06 10:56:18
● 2026-03-07 00:12:12
● 2026-03-07 04:10:32
○ 2026-03-07 12:42:02
○ 2026-03-11 09:07:22
● 2026-03-11 13:18:42
○ 2026-03-11 14:33:06
○ 2026-03-14 17:22:48
● 2026-03-14 18:47:48
○ 2026-03-14 19:31:04
○ 2026-03-16 09:37:32
● 2026-03-16 10:58:38
○ 2026-03-16 12:24:22
○ 2026-03-16 18:01:50
● 2026-03-16 21:39:46
○ 2026-03-17 00:19:14
○ 2026-03-20 08:16:06
● 2026-03-20 09:52:54
● 2026-03-20 11:29:02
○ 2026-03-21 13:11:06
○ 2026-03-27 01:19:36
● 2026-03-27 09:45:44
● 2026-03-28 00:13:36
○ 2026-03-28 01:36:12
○ 2026-04-11 23:07:18

○A3.170.42.1272026-02-19 → 2026-03-28 · 43 obs

○A3.170.42.142026-02-19 → 2026-03-28 · 43 obs

○A3.170.42.782026-02-19 → 2026-03-28 · 43 obs

○A3.171.214.1182026-03-04 → 2026-03-04 · 4 obs

○ 2026-03-03 16:14:28
● 2026-03-04 09:03:46
○ 2026-03-04 09:53:46
○ 2026-04-11 23:07:18

○A3.171.214.172026-03-04 → 2026-03-04 · 4 obs

○ 2026-03-03 16:14:28
● 2026-03-04 09:03:46
○ 2026-03-04 09:53:46
○ 2026-04-11 23:07:18

○A3.171.214.732026-03-04 → 2026-03-04 · 4 obs

○ 2026-03-03 16:14:28
● 2026-03-04 09:03:46
○ 2026-03-04 09:53:46
○ 2026-04-11 23:07:18

○A3.171.214.952026-03-04 → 2026-03-04 · 4 obs

○ 2026-03-03 16:14:28
● 2026-03-04 09:03:46
○ 2026-03-04 09:53:46
○ 2026-04-11 23:07:18

○A3.174.29.372026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-09 01:57:02
● 2026-04-09 19:51:32
● 2026-04-09 22:50:36
○ 2026-04-10 00:34:12
○ 2026-04-11 23:07:18

○A3.174.29.392026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-09 01:57:02
● 2026-04-09 19:51:32
● 2026-04-09 22:50:36
○ 2026-04-10 00:34:12
○ 2026-04-11 23:07:18

○A3.174.29.622026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-09 01:57:02
● 2026-04-09 19:51:32
● 2026-04-09 22:50:36
○ 2026-04-10 00:34:12
○ 2026-04-11 23:07:18

○A3.174.29.922026-04-09 → 2026-04-09 · 5 obs

○ 2026-04-09 01:57:02
● 2026-04-09 19:51:32
● 2026-04-09 22:50:36
○ 2026-04-10 00:34:12
○ 2026-04-11 23:07:18

○A52.84.118.1032026-03-01 → 2026-04-11 · 100 obs

○ 2026-03-01 01:44:26
● 2026-03-01 06:36:36
○ 2026-03-01 10:15:24
○ 2026-03-05 12:27:38
● 2026-03-05 23:28:10
○ 2026-03-06 00:27:04
● 2026-03-06 02:57:18
● 2026-03-06 03:45:04
○ 2026-03-06 10:56:18
○ 2026-03-07 04:10:32
● 2026-03-07 12:42:02
● 2026-03-08 21:32:44
○ 2026-03-08 23:04:14
● 2026-03-09 03:04:08
○ 2026-03-09 10:19:54
○ 2026-03-09 20:53:28
● 2026-03-10 02:49:42
● 2026-03-10 15:40:02
○ 2026-03-10 20:41:44
● 2026-03-11 01:18:22
○ 2026-03-11 09:07:22
○ 2026-03-11 19:54:18
● 2026-03-12 01:53:04
● 2026-03-12 04:52:40
○ 2026-03-12 06:12:50
○ 2026-03-13 04:18:16
● 2026-03-13 08:27:02
○ 2026-03-13 13:15:38
○ 2026-03-13 22:46:32
● 2026-03-14 02:26:06
○ 2026-03-14 05:59:00
● 2026-03-14 07:00:00
○ 2026-03-14 08:37:12
○ 2026-03-14 19:31:04
● 2026-03-14 21:29:54
○ 2026-03-15 03:04:34
○ 2026-03-15 08:50:34
● 2026-03-15 10:53:34
● 2026-03-15 19:49:04
○ 2026-03-15 23:03:28
○ 2026-03-16 02:51:44
● 2026-03-16 04:59:48
● 2026-03-16 09:37:32
○ 2026-03-16 10:58:38
○ 2026-03-16 12:24:22
● 2026-03-16 16:00:02
○ 2026-03-16 18:01:50
○ 2026-03-16 21:39:46
● 2026-03-17 00:19:14
○ 2026-03-17 01:53:04
● 2026-03-17 05:38:52
○ 2026-03-17 15:01:12
○ 2026-03-18 05:42:44
● 2026-03-18 10:55:52
○ 2026-03-18 19:54:48
○ 2026-03-19 01:51:48
● 2026-03-19 05:34:44
○ 2026-03-19 22:47:36
○ 2026-03-20 11:29:02
● 2026-03-21 13:11:06
○ 2026-03-22 17:35:18
● 2026-03-22 21:48:26
● 2026-03-27 01:19:36
○ 2026-03-27 09:45:44
○ 2026-03-28 01:36:12
● 2026-03-28 03:15:32
○ 2026-03-28 06:08:20
○ 2026-03-28 16:31:00
● 2026-03-29 02:06:18
○ 2026-03-29 05:05:46
● 2026-03-29 08:27:20
● 2026-03-31 03:25:38
○ 2026-03-31 11:23:34
● 2026-03-31 12:32:48
● 2026-03-31 13:07:56
○ 2026-03-31 23:34:38
○ 2026-04-01 07:24:58
● 2026-04-02 08:41:52
● 2026-04-02 09:26:10
○ 2026-04-02 16:41:58
● 2026-04-03 01:24:34
● 2026-04-03 06:05:06
○ 2026-04-03 11:52:14
● 2026-04-04 00:32:08
● 2026-04-04 12:10:12
○ 2026-04-05 04:02:10
○ 2026-04-05 05:20:18
● 2026-04-05 19:04:12
○ 2026-04-06 09:17:46
● 2026-04-06 09:56:40
● 2026-04-07 00:52:14
○ 2026-04-07 15:19:04
● 2026-04-07 22:05:50
● 2026-04-09 01:57:02
○ 2026-04-09 19:51:32
○ 2026-04-10 11:26:20
● 2026-04-10 19:21:22
● 2026-04-11 01:20:54
○ 2026-04-11 23:07:14
○ 2026-04-11 23:07:18

○A52.84.118.122026-03-01 → 2026-04-11 · 100 obs

○A52.84.118.402026-03-01 → 2026-04-11 · 100 obs

○A52.84.118.822026-03-01 → 2026-04-11 · 100 obs

○A99.84.215.202026-02-19 → 2026-03-28 · 99 obs

○ 2026-02-19 06:25:56
● 2026-02-19 17:05:18
● 2026-02-20 06:44:04
○ 2026-02-20 11:30:56
● 2026-02-20 13:18:32
● 2026-02-20 21:53:20
○ 2026-02-21 15:24:40
● 2026-02-21 19:04:06
● 2026-02-28 03:51:40
○ 2026-02-28 10:47:08
● 2026-02-28 17:54:48
● 2026-02-28 18:44:48
○ 2026-02-28 20:25:16
● 2026-03-01 00:00:28
● 2026-03-01 01:44:26
○ 2026-03-01 06:36:36
● 2026-03-01 10:15:24
○ 2026-03-01 12:14:32
○ 2026-03-01 13:11:36
● 2026-03-01 14:56:46
● 2026-03-02 21:55:14
○ 2026-03-03 01:37:30
● 2026-03-03 02:32:06
● 2026-03-03 16:14:28
○ 2026-03-04 09:03:46
● 2026-03-04 09:53:46
● 2026-03-05 02:49:18
○ 2026-03-05 03:52:06
● 2026-03-05 04:26:04
● 2026-03-05 10:41:42
○ 2026-03-05 12:27:38
○ 2026-03-05 23:28:10
● 2026-03-06 00:27:04
○ 2026-03-06 02:57:18
○ 2026-03-06 03:45:04
● 2026-03-06 10:56:18
○ 2026-03-07 00:12:12
○ 2026-03-08 21:32:44
● 2026-03-08 23:04:14
○ 2026-03-09 03:04:08
● 2026-03-09 10:19:54
● 2026-03-09 20:53:28
○ 2026-03-10 02:49:42
○ 2026-03-10 15:40:02
● 2026-03-10 20:41:44
○ 2026-03-11 01:18:22
● 2026-03-11 09:07:22
○ 2026-03-11 13:18:42
● 2026-03-11 14:33:06
● 2026-03-11 19:54:18
○ 2026-03-12 01:53:04
○ 2026-03-12 04:52:40
● 2026-03-12 06:12:50
● 2026-03-13 04:18:16
○ 2026-03-13 08:27:02
● 2026-03-13 13:15:38
● 2026-03-13 22:46:32
○ 2026-03-14 02:26:06
● 2026-03-14 05:59:00
○ 2026-03-14 07:00:00
● 2026-03-14 08:37:12
○ 2026-03-14 12:36:24
● 2026-03-14 14:33:38
○ 2026-03-14 15:41:50
● 2026-03-14 17:22:48
○ 2026-03-14 18:47:48
● 2026-03-14 19:31:04
○ 2026-03-14 21:29:54
● 2026-03-15 03:04:34
● 2026-03-15 08:50:34
○ 2026-03-15 10:53:34
○ 2026-03-15 19:49:04
● 2026-03-15 23:03:28
● 2026-03-16 02:51:44
○ 2026-03-16 04:59:48
○ 2026-03-16 10:58:38
● 2026-03-16 12:24:22
○ 2026-03-16 16:00:02
● 2026-03-16 18:01:50
○ 2026-03-16 21:39:46
○ 2026-03-17 00:19:14
● 2026-03-17 01:53:04
○ 2026-03-17 05:38:52
● 2026-03-17 15:01:12
● 2026-03-18 05:42:44
○ 2026-03-18 10:55:52
● 2026-03-18 19:54:48
● 2026-03-19 01:51:48
○ 2026-03-19 05:34:44
● 2026-03-19 22:47:36
● 2026-03-20 08:16:06
○ 2026-03-20 09:52:54
○ 2026-03-28 00:13:36
● 2026-03-28 01:36:12
○ 2026-03-28 03:15:32
● 2026-03-28 06:08:20
● 2026-03-28 08:57:40
○ 2026-03-28 11:52:32
○ 2026-04-11 23:07:18

○A99.84.215.302026-02-19 → 2026-03-28 · 99 obs

○A99.84.215.382026-02-19 → 2026-03-28 · 99 obs

○A99.84.215.702026-02-19 → 2026-03-28 · 99 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ac	a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac	8 records
disco.ac	ns-250.awsdns-31.com, ns-1353.awsdns-41.org, ns-1977.awsdns-55.co.uk, ns-579.awsdns-08.net	-

✅ Authoritative Response

Server:205.251.194.67

NS records: ns-250.awsdns-31.com, ns-1353.awsdns-41.org, ns-1977.awsdns-55.co.uk, ns-579.awsdns-08.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for disco.ac (unsigned zone)

⏱️ Timing

Total: 975ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.161.205.77, 18.161.205.50...`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.ac, a2.nic.ac, b0.nic.ac...)

Analysis

IP Addresses

lib4248.lib.disco.ac points to four IP numbers: 18.161.205.25, 18.161.205.50, 18.161.205.77 and 18.161.205.89.

lib4248.lib.disco.ac - robtex.com