esn-dtu.dk

📜 Historical scan 2026-09-06 10:34:37  ·  ← Latest scan
⬇ 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   128ms
NameserverIP addressesPTRASN / 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   111ms
IPTTLPTRASNISP / OrgCIDRCountryCity
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   109ms
PriorityTTLMail ServerIP addressesPTRASN
1 300s aspmx.l.google.com 142.251.9.27
2a00:1450:4025:c01::1a		 rc-in-f27.1e100.net
rd-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 300s alt1.aspmx.l.google.com 192.178.211.26
2404:6800:4000:1025::1b		 lcbomp-in-f26.1e100.net
lcbomp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 300s alt2.aspmx.l.google.com 192.178.158.27
2404:6800:4013:813::1a		 lcdels-in-f27.1e100.net
lcdels-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 300s alt3.aspmx.l.google.com 173.194.41.27
173.194.41.27
2404:6800:4001:c01::1a		 mad01s14-in-f27.1e100.net
yukulwh-in-f27.1e100.net
yukulwh-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
10 300s alt4.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

🔷 AAAA Records (IPv6)#

2 records   111ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
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   118ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.23.60,172.67.209.114 ech=AEX+DQBBsQAgACCvpdwCOorVJ15lDIRJFKL+McFwGPn3tdnNx2fsh008KAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:173c,2606:4700:3034::ac43:d172

📝 TXT Records#

1 records   271ms
TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

PolicyRecord (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#

latest probe, not this scan · checked 2026-10-09 21:55:12
www104.21.23.60 172.67.209.114 2606:4700:3034::6815:173c 2606:4700:3034::ac43:d172 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.esn-dtu.dk PeI6yX8AjfiGpeKbl-kxQO70dsyXXCuV5jkkQCUF8es
TXT _acme-challenge.esn-dtu.dk ttZ2kZa2VyvuU5G0QuodloAXdj0ZKRcaFc-wcJxjGBo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

157ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2414131715
Primary NS (MNAME)cloe.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-09 16:44:48
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2011-09-13
Expires2027-07-31 (284d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
128ms
A
111ms
MX
109ms
AAAA
111ms
TXT
271ms
CAA
111ms
HTTPS
118ms
TLSA
429ms
SOA
0ms
MTA-STS
123ms
DNSSEC
157ms
SRV
138ms
Total
1574ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 21:55:11 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 shown 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
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