esn-dtu.dk

Records from scan: 2026-10-09 21:55:11 · 564ms total · last checked 2026-10-18 06:27 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

esn-dtu.dk is a .dk domain served by 2 nameservers (cloe.ns.cloudflare.com, ed.ns.cloudflare.com). It was registered on 13 September 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.23.60 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 35ms

Nameserver	IP addresses	PTR	ASN / ISP
cloe.ns.cloudflare.com	108.162.192.86 172.64.32.86 173.245.58.86 2606:4700:50::adf5:3a56 2803:f800:50::6ca2:c056 2a06:98c1:50::ac40:2056	cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com cloe.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ed.ns.cloudflare.com	108.162.193.111 172.64.33.111 173.245.59.111 2606:4700:58::adf5:3b6f 2803:f800:50::6ca2:c16f 2a06:98c1:50::ac40:216f	ed.ns.cloudflare.com ed.ns.cloudflare.com ed.ns.cloudflare.com ed.ns.cloudflare.com ed.ns.cloudflare.com ed.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.23.60	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.209.114	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	209.85.233.27 2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a	lr-in-f27.1e100.net lm-in-f26.1e100.net lm-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:173c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:d172	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 30ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.60,172.67.209.114 ech=AEX+DQBBcgAgACCy1SXKC9bIdXxpmYTRh7pCWGVChQvOTgI30gHSDSkeZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:173c,2606:4700:3034::ac43:d172

📝 TXT Records#

1 records 159ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (esn-dtu.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-09 21:55:12

www	104.21.23.60 172.67.209.114 2606:4700:3034::6815:173c 2606:4700:3034::ac43:d172 (AS13335) (address records, no CNAME)
www vs bare domain	Same network esn-dtu.dk: 104.21.23.60 172.67.209.114 2606:4700:3034::6815:173c 2606:4700:3034::ac43:d172 (AS13335) www.esn-dtu.dk: 104.21.23.60 172.67.209.114 2606:4700:3034::6815:173c 2606:4700:3034::ac43:d172 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

73ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

51ms

Field	Value
Serial	2416974338
Primary NS (MNAME)	cloe.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 16:44:48

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-09-13
Expires	2027-07-31 (285d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

28ms

35ms

AAAA

31ms

TXT

159ms

CAA

45ms

HTTPS

30ms

TLSA

78ms

SOA

51ms

MTA-STS

55ms

DNSSEC

73ms

SRV

62ms

Total

564ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 21:55:11 shown	564ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 04:01:27	10074ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-14 15:58:25	3968ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-06 10:34:37	1574ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 21:59:39	819ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-24 07:11:29	4032ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-19 21:01:48	3018ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-18 20:46:31	6093ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-17 02:25:15	1640ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-14 15:35:19	10469ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-12 17:04:58	3069ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-10 17:53:04	7823ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-03 20:39:45	16508ms	1 NS 0 A 0 MX	❓ Unknown
2026-06-21 12:08:14	3515ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-21 05:47:45	1056ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 16:47:32	853ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-19 22:00:38	756ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 08:25:05	517ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 08:24:35	561ms	2 NS 2 A 5 MX	🔓 Insecure