ruc.dk

📜 Historical scan 2026-10-06 07:11:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ruc.dk is a .dk domain served by 2 nameservers (emma.ruc.dk, ns-soa.darenet.dk). It was registered on 18 May 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.225.221.44 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by ruc-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 46ms

Nameserver	IP addresses	PTR	ASN / ISP
emma.ruc.dk	130.225.220.16	emma.ruc.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns-soa.darenet.dk	130.226.179.50 2001:878:0:e000:82:e2:b3:32	ns-soa.darenet.dk ns-soa.darenet.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.221.44	86400s	—	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	Aalborg

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
20	360s	ruc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca3c::8 2a01:111:f403:ca48::a 2a01:111:f403:ca48::c 52.101.103.162 52.101.103.36 52.101.68.15 52.101.73.145	mail-db8pr02cu00106.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00301.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	owa.ruc.dk → 130.226.198.141

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

12 records 163ms

TXT Record
adobe-idp-site-verification=97490e4f776f0661b38346a00a9442cf77ea84fbe4e0d06b546ee1ff531b47dd
apple-domain-verification=Mef12DxfGkXtdm86
cisco-ci-domain-verification=8aedad5849dbd9d450473a56d1ee838a019982c1d488ab8859b806f47931902
facebook-domain-verification=jwtj4lpyeoziu7sv5qtd4met7l06ut
google-site-verification=r3pqaC7b6U3XRD6X6yZHc2taQx9ys3CDbUG2GFhz3Hs
HARICA-PbyBy9cc7YSnw2eRrON
L1nSzwjpIdnSvQ/PJsgicb9Qf/qpbWmfU1wJN+M1g4Oiqkl4K+341HuosqtkzwqVaYvfR5zQ8k0bLwkARZUdcg==
MS=ms34432307
ubivox-site-verification=IlGL8G5I4K1an2RFPKmP7E23b
ubivox-site-verification=pofcGso-vY9yWtouahAIKsmuf
v=spf1 a ip4:130.225.220.22/32 ip4:130.225.220.45/32 ip4:130.226.198.172/31 ip4:130.226.198.174/32 ip4:130.226.173.80/29 ip4:193.162.253.130/32 include:uxmail.io include:_spf.vocast.com include:spf.protection.outlook.com include:_spf.qp-mail.eu include:onmicrosoft.com -all
ZOOM_verify_ykOQG-M0Qqe2k-JTnoPgJw

✉️ SPF#

Policy	Record (ruc.dk)
-all (hard fail)	v=spf1 a ip4:130.225.220.22/32 ip4:130.225.220.45/32 ip4:130.226.198.172/31 ip4:130.226.198.174/32 ip4:130.226.173.80/29 ip4:193.162.253.130/32 include:uxmail.io include:_spf.vocast.com include:spf.protection.outlook.com include:_spf.qp-mail.eu include:onmicrosoft.com -all

📨 DMARC#

Policy	Record (_dmarc.ruc.dk)
p=reject	v=DMARC1; p=reject; adkim=r; aspf=r; rua=mailto:68c3fd4422f81@dmarc-dk.centerasecurity.com;

📬 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 10:20:17

www CNAME	redirect.ruc.dk (all on ruc.dk) → 130.225.220.151 (AS1835)
www vs bare domain	Same network ruc.dk: 130.225.221.44 (AS1835) www.ruc.dk: 130.225.220.151 (AS1835)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-ruc-dk._domainkey.rucdk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-ruc-dk._domainkey.rucdk.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 10/10 · policy: -all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2026100500
Primary NS (MNAME)	emma.ruc.dk
Responsible (RNAME)	net-adm@ruc.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-06 07:00:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-05-18
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

42ms

29ms

AAAA

34ms

TXT

163ms

CAA

41ms

HTTPS

55ms

TLSA

489ms

SOA

29ms

MTA-STS

49ms

DNSSEC

62ms

SRV

64ms

Total

996ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:20:17	4964ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 09:24:38	1360ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-06 07:11:31 shown	996ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-03 06:29:13	1538ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 06:18:42	3563ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-26 04:52:04	3918ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 04:35:03	811ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 00:07:41	3669ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-17 12:54:23	1758ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-15 04:14:31	2274ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 03:45:14	2876ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-04 22:51:26	1445ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-29 04:56:00	2862ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-28 03:52:46	1605ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 01:08:36	1943ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 19:29:28	2068ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-21 15:32:02	2111ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-18 12:58:27	5874ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-10 16:22:21	5216ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-01 02:12:33	2803ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-29 02:47:52	1920ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-23 22:32:21	1132ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-01 19:05:59	1380ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 23:13:13	1402ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-22 23:31:35	2761ms	2 NS 1 A 1 MX	🔓 Insecure