serc.dk

📜 Historical scan 2026-07-02 11:54:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

serc.dk is a .dk domain served by 2 nameservers (ns1.risoe.dk, ns2.risoe.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.84.65 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by windscanner-eu.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.risoe.dk	130.226.56.67	—	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.risoe.dk	130.226.56.68	—	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
192.38.84.65	86400s	redirector.ait.dtu.dk	AS1835	IDDQD-AS	192.38.0.0/17	🇩🇰 Denmark	Kongens Lyngby

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	86400s	windscanner-eu.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::1 2a01:111:f403:ca09::c 2a01:111:f403:ca09::e 52.101.73.2 52.101.73.24 52.101.73.26 52.101.73.28	mail-db4pr02cu00204.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.dtu.dk → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 142ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	mail.win.dtu.dk

📝 TXT Records#

6 records 382ms

TXT Record
DigiCert dnsadmin@dtu.dk
fP/Qoeq4gDRch8HNARZjO9IiD02iOX/1vvLPEG5lS7Tpo95+VtNamU4lfmhMoIQ3pKQ06BrrTIVFheZEQRIndQ==
HARICA-Kb8U1EHJbAUpkmBHA9j
HARICA-os52FSpLHOoymC2PaUv
MS=ms66412024
v=spf1 include:dtu.dk include:spf.dtu.dk include:spf.peoplexs.com include:spf.protection.outlook.com ip4:94.231.107.25 ip4:94.231.107.21 ip4:93.90.115.122 ip4:193.162.253.0/24 include:spf.mx.fab-it.dk -all

✉️ SPF#

Policy	Record (serc.dk)
-all (hard fail)	v=spf1 include:dtu.dk include:spf.dtu.dk include:spf.peoplexs.com include:spf.protection.outlook.com ip4:94.231.107.25 ip4:94.231.107.21 ip4:93.90.115.122 ip4:193.162.253.0/24 include:spf.mx.fab-it.dk -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 2026-10-08 05:08:01

www CNAME	webcluster7.sitecore.dtu.dk (all on dtu.dk) → 52.236.166.178 (AS8075)
www vs bare domain	Different networks serc.dk: 192.38.84.65 (AS1835) www.serc.dk: 52.236.166.178 (AS8075) (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 12/10 · policy: -all

error include:spf.peoplexs.com has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
error 12 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2048ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2026031301
Primary NS (MNAME)	ns1.risoe.dk
Responsible (RNAME)	research-it\@dtu@dk
Refresh	86400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

36ms

33ms

40ms

AAAA

34ms

TXT

382ms

CAA

34ms

HTTPS

32ms

TLSA

247ms

SOA

35ms

MTA-STS

102ms

DNSSEC

2048ms

SRV

142ms

Total

3147ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-18 21:25:26	1574ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-28 09:10:11	1549ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-02 11:54:10 shown	3147ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 17:17:20	1270ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 07:28:42	6521ms	2 NS 1 A 1 MX	🔓 Insecure