yammer.dk DNS records

🖥️ Nameservers2 records 42ms

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 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.100.104.12	43200s	91.100.104.12.generic-hostname.arrownet.dk	AS15516	DKTV A/S	91.100.0.0/15	🇩🇰 Denmark	Ballerup Municipality

📧 MX Records5 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	43200s	aspmx.l.google.com	2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a 64.233.164.26	lm-in-x1a.1e100.net lm-in-f26.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	43200s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	43200s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	43200s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	43200s	aspmx3.googlemail.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 173ms

TXT Record
v=spf1 include:aspmx.googlemail.com ~all

✉️ SPF

Policy	Record (yammer.dk)
~all (soft fail)	v=spf1 include:aspmx.googlemail.com ~all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC90ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080801
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

42ms

A

54ms

MX

52ms

AAAA

41ms

TXT

173ms

CAA

64ms

HTTPS

66ms

TLSA

267ms

SOA

0ms

MTA-STS

70ms

DNSSEC

90ms

SRV

66ms

Total

1597ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-09 16:35:02	1597ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-23 17:06:26	5130ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-12 15:30:42	1014ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-21 21:15:24	623ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-17 21:56:27	795ms	2 NS 1 A 5 MX	🔒 Secure	View