ciss.dk

📜 Historical scan 2026-06-24 20:28:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ciss.dk is a .dk domain served by 2 nameservers (ns1.aau.dk, ns2.aau.dk). It was registered on 22 April 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.225.57.55 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by ciss-dk.mail.protection.outlook.com. The zone is of unknown DNSSEC status, 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 298ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.aau.dk	130.225.52.5 2001:878:300:1::5	ns1.aau.dk ns1.aau.dk	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.aau.dk	130.225.54.5 2001:878:300:100::5	ns2.aau.dk ns2.aau.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 398ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.57.55	3600s	—	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records#

1 records 345ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
40	3600s	ciss-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09:: 2a01:111:f403:ca09::2 2a01:111:f403:ca09::8 52.101.68.0 52.101.68.16 52.101.68.21 52.101.73.11	mail-db6pr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am1pr04cu00103.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 637ms

TXT Record
apple-domain-verification=DowaXqaD88mTFz9h
v=spf1 include:_spfhard.aau.dk -all

✉️ SPF#

Policy	Record (ciss.dk)
-all (hard fail)	v=spf1 include:_spfhard.aau.dk -all

📨 DMARC#

Policy	Record (_dmarc.ciss.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

📬 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 2026-10-07 23:46:31

www	130.225.57.55 (AS1835) (address records, no CNAME)
www vs bare domain	Same network ciss.dk: 130.225.57.55 (AS1835) www.ciss.dk: 130.225.57.55 (AS1835)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-ciss-dk._domainkey.aaudk.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-ciss-dk._domainkey.aaudk.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: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.ciss.dk	e0ebd0d0-4b72-45c7-bb32-c0cb01d6e3a0.acme.aau.dk
TXT	e0ebd0d0-4b72-45c7-bb32-c0cb01d6e3a0.acme.aau.dk	t2__DsC2hLm7gMp983R9GPEgMhxSUCqvQWdnKidi9OQ
TXT	e0ebd0d0-4b72-45c7-bb32-c0cb01d6e3a0.acme.aau.dk	z92pQXXUhh6y5NhPKZJZTWkdjFb6WTxR1U6S9GmkrKs

🔗 TLSA / DANE#

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

🔐 DNSSEC#

546ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'ciss.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

243ms

Field	Value
Serial	2023091803
Primary NS (MNAME)	ns1.aau.dk
Responsible (RNAME)	hostmaster@its.aau.dk
Refresh	3600s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-09 20:40:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-04-22
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

298ms

398ms

345ms

AAAA

236ms

TXT

637ms

CAA

381ms

HTTPS

380ms

TLSA

273ms

SOA

243ms

MTA-STS

304ms

DNSSEC

546ms

SRV

447ms

Total

3035ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 20:49:06	2756ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 06:20:14	1252ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 08:03:55	941ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-24 20:28:21 shown	3035ms	2 NS 1 A 1 MX	❓ Unknown
2026-06-23 10:31:24	910ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 20:56:19	5513ms	2 NS 1 A 1 MX	🔓 Insecure