esn-dtu.dk DNS records

🖥️ Nameservers2 records 53ms

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 Records2 records 55ms

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 Records5 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4010:c1e::1b 74.125.205.26	lb-in-f27.1e100.net le-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.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	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.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 54ms

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 Records1 records 53ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.60,172.67.209.114 ech=AEX+DQBB5AAgACABapd4L/jVNdxaf0gluT2G7/56pQYsISi2KEnoFpT2AgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:173c,2606:4700:3034::ac43:d172

📝 TXT Records1 records 192ms

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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.esn-dtu.dk	lHPtcJDeUSgYYQbk5UPmn0x-8bGLCKP1gzlwBVPNfxA
TXT	_acme-challenge.esn-dtu.dk	mtMi7COXbINpUgRstZp1LaWSLHv3-ZLaqGLQtxK3ffE

🔗 TLSA / DANE

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

🔐 DNSSEC87ms

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

🏷️ SOA0ms

Field	Value
Serial	2412954985
Primary NS (MNAME)	cloe.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

55ms

MX

52ms

AAAA

54ms

TXT

192ms

CAA

63ms

HTTPS

53ms

TLSA

110ms

SOA

0ms

MTA-STS

67ms

DNSSEC

87ms

SRV

67ms

Total

819ms

🕐 Scan History

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