aser.dk DNS records

🖥️ Nameservers2 records 55ms

Nameserver	IP addresses	PTR	ASN / ISP
kay.ns.cloudflare.com	108.162.192.125 172.64.32.125 173.245.58.125 2606:4700:50::adf5:3a7d 2803:f800:50::6ca2:c07d 2a06:98c1:50::ac40:207d	kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
odin.ns.cloudflare.com	108.162.195.208 162.159.44.208 172.64.35.208 2606:4700:58::a29f:2cd0 2803:f800:50::6ca2:c3d0 2a06:98c1:50::ac40:23d0	odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com odin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.56.97	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.183.190	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	aser-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::e 2a01:111:f403:ca09::7 2a01:111:f403:ca09::d 52.101.68.36 52.101.68.5 52.101.68.8 52.101.73.28	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.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	autodiscover.outlook.com → 40.104.116.56
🔶 Autoconfig	104.21.56.97

🔷 AAAA Records (IPv6)2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:b7be	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:3861	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 59ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.56.97,172.67.183.190 ech=AEX+DQBB3wAgACBUbW9UrQ4HyY7cDe5SyDhd+17ldxKPU2q7+KcEsV8DeQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:b7be,2606:4700:3037::6815:3861

🔌 SRV Records1 records 87ms

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

📝 TXT Records3 records 225ms

TXT Record
_b7q2jnppjw94fpfgebf21xcx5gyxi43
MS=ms31906660
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.aser.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:dmarc@elkjar.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 / DANE

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

🔐 DNSSEC85ms

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

🏷️ SOA0ms

Field	Value
Serial	2413188451
Primary NS (MNAME)	kay.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

55ms

A

58ms

MX

51ms

AAAA

51ms

TXT

225ms

CAA

51ms

HTTPS

59ms

TLSA

198ms

SOA

0ms

MTA-STS

67ms

DNSSEC

85ms

SRV

87ms

Total

859ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 03:18:45	859ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-24 16:20:37	3772ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-12 11:09:46	1760ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-02 19:06:53	1505ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-27 23:03:41	9252ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-24 21:53:19	17478ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-19 19:24:58	3839ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-29 01:40:53	1174ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-27 23:13:55	1011ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-27 15:53:58	1567ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 13:44:34	899ms	2 NS 2 A 1 MX	🔒 Secure	View