cej.dk DNS records

🖥️ Nameservers2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.224.18.20	3600s	—	AS205206	Netsite A/S	185.224.16.0/22	🇩🇰 Denmark	—

📧 MX Records2 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	eu-esec-01.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
10	43200s	eu-esec-02.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8
🔶 Autoconfig	185.224.18.20

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 122ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records5 records 292ms

TXT Record
apple-domain-verification=fiB7ZBczDe14xCas
google-site-verification=VaTINX8kxdQoNrSFRm-4c1jNsJyEGsL2s153CHk_Rb0
MS=ms72145030
t2MClWM5xOMBQSSSG72EuD/tOuJuJm/XTrEzK3mLF/GiEY+RK24Y+pVXG1wt/pcvsZ+BSaL05rCdsX8o1eI/EQ==
v=spf1 ip4:185.224.16.162 ip4:178.72.22.130 ip4:185.224.16.163 ip4:185.224.16.161 ip4:23.97.225.92 ip4:185.21.40.116 ip4:62.199.210.126 ip4:178.72.22.130 ip4:86.58.182.35 ip4:86.58.182.36 ip4:213.32.173.100 include:spf.protection.outlook.com include:spf.simply.com include:spf.lmmail.dk include:spf-westeu.emailsignatures365.com include:spf-esec.heimdalsecurity.com -all

✉️ SPF

Policy	Record (cej.dk)
-all (hard fail)	v=spf1 ip4:185.224.16.162 ip4:178.72.22.130 ip4:185.224.16.163 ip4:185.224.16.161 ip4:23.97.225.92 ip4:185.21.40.116 ip4:62.199.210.126 ip4:178.72.22.130 ip4:86.58.182.35 ip4:86.58.182.36 ip4:213.32.173.100 include:spf.protection.outlook.com include:spf.simply.com include:spf.lmmail.dk include:spf-westeu.emailsignatures365.com include:spf-esec.heimdalsecurity.com -all

📨 DMARC

Policy	Record (_dmarc.cej.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:kcja9y0w@ag.eu.dmarcian.com; ruf=mailto:kcja9y0w@fr.eu.dmarcian.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

🔗 TLSA / DANE2 records 96ms

Service / Owner	Type	Cert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…

🔐 DNSSEC76ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA43ms

Field	Value
Serial	2026081101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

40ms

A

55ms

MX

53ms

AAAA

41ms

TXT

292ms

CAA

47ms

HTTPS

111ms

TLSA

96ms

SOA

43ms

MTA-STS

64ms

DNSSEC

76ms

SRV

122ms

Total

5028ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-22 20:17:44	5028ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-12 22:20:58	3355ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-24 18:51:08	1248ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-18 03:07:43	8981ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-16 18:10:40	2801ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-02 00:53:18	944ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 21:25:42	51989ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 20:11:50	2122ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 20:05:53	489ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-16 20:00:06	705ms	2 NS 1 A 2 MX	🔒 Secure	View