`sera.nu`

DNSSEC	⚠️ Not signed
A	162.159.134.42^{Cloudflare162.159.128.0/19 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns1.simply.com` ⭐
		A	2a02:2339:1:15c::4562:4562^{🇩🇰 team-blue-denmark2a02:2339::/36}
			PTR	`ns1.simply.com`
		A	91.197.248.78^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns1.simply.com`
NS	`ns2.simply.com`
		A	2a02:2339:4006:101::4562:4562^{🇩🇰 team-blue-denmark2a02:2339:4000::/34}
			PTR	`ns2.simply.com`
		A	185.25.141.15^{🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S}
			PTR	`ns2.simply.com`
NS	`ns3.simply.com`
		A	91.197.248.79^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns3.simply.com`
NS	`ns4.simply.com`
		A	91.197.248.80^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns4.simply.com`
MX	`sera-nu.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca09::2^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am0pr83cu00402.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::5^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am1pr04cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::7^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::20^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00400.inbound.protection.outlook.com`
		A	52.101.68.36^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db5pr02cu00104.inbound.protection.outlook.com`
		A	52.101.73.8^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr04cu00500.inbound.protection.outlook.com`
		A	52.101.73.12^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am4pr0401cu00104.inbound.protection.outlook.com`
		A	52.101.73.19^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr04cu00803.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.simply.com include:spf.protection.outlook.com ?all`
TXT	`MS=ms11460792`
SOA	`ns1.simply.com`hostmaster@simply.com 2025-04-23 #0

`nu`

	DNSSEC	🔒 Signed (DS record present)
	NS	`catcher-in-the-rye.nic.nu` ⭐
	NS	`a.ns.nu`
	NS	`c.ns.nu`
	NS	`d.ns.nu`
	NS	`m.ns.nu`
	NS	`y.ns.nu`
	NS	`z.ns.nu`
	TXT	`id:d0aa2beb-7cba-47ae-ba54-0b5db09b1e5b`
	TXT	`NU zone update: 2026-03-27 00:39:58 +0000 (EPOCH 1774571998) (auto)`
	SOA	`catcher-in-the-rye.nic.nu`hostmaster@nic.nu serial=1774572132

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DNS History

11 records (6 active, 5 former)

●NSns1.simply.com2026-03-25 → 2026-03-27 · 3 obs

○ 2017-08-23 11:56:02
● 2026-03-25 21:45:06
● 2026-03-27 02:03:34

○NSns1.surf-town.net2015-06-09 → 2017-08-23 · 4 obs

● 2015-06-09 20:36:08
● 2017-08-23 11:56:02
○ 2026-03-25 21:45:06
○ 2026-03-27 02:03:34

●NSns2.simply.com2026-03-25 → 2026-03-27 · 3 obs

○ 2017-08-23 11:56:02
● 2026-03-25 21:45:06
● 2026-03-27 02:03:34

○NSns2.surf-town.net2015-06-09 → 2017-08-23 · 4 obs

● 2015-06-09 20:36:08
● 2017-08-23 11:56:02
○ 2026-03-25 21:45:06
○ 2026-03-27 02:03:34

●NSns3.simply.com2026-03-25 → 2026-03-27 · 3 obs

○ 2017-08-23 11:56:02
● 2026-03-25 21:45:06
● 2026-03-27 02:03:34

○NSns3.surf-town.net2015-06-09 → 2017-08-23 · 4 obs

● 2015-06-09 20:36:08
● 2017-08-23 11:56:02
○ 2026-03-25 21:45:06
○ 2026-03-27 02:03:34

●NSns4.simply.com2026-03-25 → 2026-03-27 · 3 obs

○ 2017-08-23 11:56:02
● 2026-03-25 21:45:06
● 2026-03-27 02:03:34

○MXmail17.surftown.dk2015-06-09 → 2017-08-23 · 4 obs

● 2015-06-09 20:36:08
● 2017-08-23 11:56:02
○ 2026-03-25 21:45:06
○ 2026-03-27 02:03:34

●MXsera-nu.mail.protection.outlook.com2026-03-25 → 2026-03-27 · 3 obs

○ 2017-08-23 11:56:02
● 2026-03-25 21:45:06
● 2026-03-27 02:03:34

●A162.159.134.422026-03-25 → 2026-03-27 · 3 obs

○ 2017-08-23 11:56:02
● 2026-03-25 21:45:06
● 2026-03-27 02:03:34

○A193.8.37.822015-06-09 → 2017-08-23 · 4 obs

● 2015-06-09 20:36:08
● 2017-08-23 11:56:02
○ 2026-03-25 21:45:06
○ 2026-03-27 02:03:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nu	a.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu...	-
sera.nu	ns3.simply.com, ns2.simply.com, ns1.simply.com, ns4.simply.com	-

✅ Authoritative Response

Server:91.197.248.80

NS records: ns3.simply.com, ns2.simply.com, ns1.simply.com, ns4.simply.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 3616ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`162.159.134.42`
NS	4	`ns2.simply.com, ns1.simply.com...`
MX	1	`sera-nu.mail.protection.outlook.com (pri`
TXT	2	`MS=ms11460792, v=spf1 include:spf.simply.com include:sp`
SOA	1	`ns1.simply.com hostmaster.simply.com`