ceriksen.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
jay.ns.cloudflare.com	108.162.193.123 172.64.33.123 173.245.59.123 2606:4700:58::adf5:3b7b 2803:f800:50::6ca2:c17b 2a06:98c1:50::ac40:217b	jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com jay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
novalee.ns.cloudflare.com	108.162.194.182 162.159.38.182 172.64.34.182 2606:4700:50::a29f:26b6 2803:f800:50::6ca2:c2b6 2a06:98c1:50::ac40:22b6	novalee.ns.cloudflare.com novalee.ns.cloudflare.com novalee.ns.cloudflare.com novalee.ns.cloudflare.com novalee.ns.cloudflare.com novalee.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 78ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.88.208	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.153.94	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	ceriksen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09:: 2a01:111:f403:ca09::5 2a01:111:f403:ca09::e 52.101.103.140 52.101.68.21 52.101.68.3 52.101.73.11	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00403.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

📧 Autodiscover / Autoconfig

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

🔷 AAAA Records (IPv6)2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:995e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:58d0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 55ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.88.208,172.67.153.94 ech=AEX+DQBB0gAgACCY23AJFaxEhZtwKx1UNyKwjHLeaIbG6J22qyZ4Km+RbQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:995e,2606:4700:3036::6815:58d0

🔌 SRV Records1 records 90ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 224ms

TXT Record
MS=ms41201700
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (ceriksen.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.ceriksen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:545415b61d2748d19385fac02e2fdda2@dmarc-reports.cloudflare.net;

📬 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 / DANE

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

🔐 DNSSEC84ms

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

🏷️ SOA0ms

Field	Value
Serial	2412786164
Primary NS (MNAME)	jay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

78ms

MX

53ms

AAAA

50ms

TXT

224ms

CAA

61ms

HTTPS

55ms

TLSA

185ms

SOA

0ms

MTA-STS

69ms

DNSSEC

84ms

SRV

90ms

Total

862ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 19:31:56	862ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-21 22:15:43	4560ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-30 20:55:56	1557ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-23 11:14:14	2174ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-04 22:42:21	9472ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-02 00:34:58	3199ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 20:10:09	707ms	2 NS 2 A 1 MX	🔒 Secure	View