itwbyg.dk DNS records

🖥️ Nameservers2 records 35ms

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 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.105.147.223	1800s	—	AS8075	Microsoft Corporation	51.104.0.0/14	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	itwbyg-dk.mail.protection.outlook.com	2a01:111:f403:c902::2 2a01:111:f403:c903::3 2a01:111:f403:c92c::4 2a01:111:f403:f909:: 52.101.41.24 52.101.42.18 52.101.8.51 52.101.9.11	mail-sj0pr03cu01602.inbound.protection.outlook.com mail-mw2pr02cu00503.inbound.protection.outlook.com mail-dm6pr05cu00404.inbound.protection.outlook.com mail-bn6pr04cu00200.inbound.protection.outlook.com mail-sj0pr03cu01600.inbound.protection.outlook.com mail-co1pr03cu00302.inbound.protection.outlook.com mail-dm1pr04cu00203.inbound.protection.outlook.com mail-bl2pr04cu00103.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 Records3 records 148ms

TXT Record
E44AZPWBL9ZL67S1ELHTO3G3QM2GYQT4BCJT53SK
MS=ms80576978
v=spf1 ip4:87.54.4.138 ip4:87.54.4.139 ip4:81.200.33.53 ip4:78.156.98.47 include:spf.securesmtp.dk include:spf.protection.outlook.com include:spf.hostnordic.com -all

✉️ SPF

Policy	Record (itwbyg.dk)
-all (hard fail)	v=spf1 ip4:87.54.4.138 ip4:87.54.4.139 ip4:81.200.33.53 ip4:78.156.98.47 include:spf.securesmtp.dk include:spf.protection.outlook.com include:spf.hostnordic.com -all

📨 DMARC

Policy	Record (_dmarc.itwbyg.dk)
p=quarantine	v=DMARC1; p=quarantine; 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

🔗 TLSA / DANE

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

🔐 DNSSEC67ms

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

🏷️ SOA41ms

Field	Value
Serial	2026032501
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

35ms

A

47ms

MX

35ms

AAAA

35ms

TXT

148ms

CAA

34ms

HTTPS

34ms

TLSA

216ms

SOA

41ms

MTA-STS

41ms

DNSSEC

67ms

SRV

37ms

Total

812ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-29 17:45:05	812ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 20:34:48	3738ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 19:46:56	1231ms	2 NS 1 A 1 MX	🔒 Secure	View