b4failure.dk DNS records

🖥️ Nameservers4 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records

🌍

No A records found

📧 MX Records3 records 41ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	primary.silents.dk	86.52.56.72	86-52-56-72.norlyscustomer.net	AS39642 Sinal A/S
20	43200s	secondary.silents.dk	86.52.56.72	86-52-56-72.norlyscustomer.net	AS39642 Sinal A/S
30	43200s	mail-backup.ndreassen.dk	87.62.100.86	0x573e6456.static.cust.fastspeed.dk	AS3292 TDC Holding A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	primary.silents.dk → 86.52.56.72
🔶 Autoconfig	primary.silents.dk → 86.52.56.72

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 183ms

TXT Record
v=spf1 include:amazonses.com include:silents.dk mx -all

✉️ SPF

Policy	Record (b4failure.dk)
-all (hard fail)	v=spf1 include:amazonses.com include:silents.dk mx -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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.b4failure.dk	13vK_cWEDYShzS8MnsJwn4SZHx3knMOVXcJufscp3M4
TXT	_acme-challenge.b4failure.dk	1465XewiU0oCP4B6eCbOq-wAp8A1ezXr3Ej1WUxbEgQ
TXT	_acme-challenge.b4failure.dk	1if9nx3WJXozAbMgnQBnPbbfycL8K01gMewF-ytL47U
TXT	_acme-challenge.b4failure.dk	4uMBcYMH-pUJkC7xT-5O8jFfX3H77URQU0aTpYYrUW0
TXT	_acme-challenge.b4failure.dk	8AZLeLYPWTGrUIVnl89tlTZWUrIjhw6CYda3xMDVsZc
TXT	_acme-challenge.b4failure.dk	BC3wu2btAwN4Z2fSIWT2daONxaZuCqzEc4r73TMEo-k
TXT	_acme-challenge.b4failure.dk	DzAwlb4xpb7EwZPIHMs384yfgV-tC2tU2cclri3zhUo
TXT	_acme-challenge.b4failure.dk	FFZCIg9qqGVtQ-ikTkeURq3Bp7SdXqSOHwgHo030r8Q
TXT	_acme-challenge.b4failure.dk	FVTLzP4oYNh3m-a5MFqHV72j7HEbzWszCvXf2YHYn98
TXT	_acme-challenge.b4failure.dk	H0YLCS6tRNQjU-blRz5x1k1qpHk26TemgMBpV-xAdv4
TXT	_acme-challenge.b4failure.dk	M68t_O0Wzkwr3W2GEgPzx691QRu0Zbn_gpeMMwa8rwY
TXT	_acme-challenge.b4failure.dk	TbAzRTmEumeUs2mgZeveHM6N63vpxOw2saKTH5OVU2o
TXT	_acme-challenge.b4failure.dk	Vt-iFbYNH-jbaMmXrQ5yp8F4Q1xGKpOaoXKUa2txpgU
TXT	_acme-challenge.b4failure.dk	YWg-ZTae5cQBGfb6-3octwkF1u6ipWF-BYow-OUf8Jg
TXT	_acme-challenge.b4failure.dk	YsXDFx4KVV8nxMpm-XsbSVtUYrYgLjce4IL7yVcGJos
TXT	_acme-challenge.b4failure.dk	_TI4E-Iaxd02D-b39ceS9_iue0rflyec7kAIGUqRgcw
TXT	_acme-challenge.b4failure.dk	bK2lZgquhwaa_iMs06tj9rfVN_0ozrKymtRqmRA354U
TXT	_acme-challenge.b4failure.dk	eb6XKdyRI4x_ht-8PzlV-wWUMIWxBBNpm5kfjLDfqYg
TXT	_acme-challenge.b4failure.dk	iDxmRFs7qwJ5WRnWGZc63tkMw2Sw6snjOJ2919p7Y94
TXT	_acme-challenge.b4failure.dk	ikCxPm8QMVIl98BavYTDeZoTPDIU_Zv7C_oXjraaEZ8
TXT	_acme-challenge.b4failure.dk	kv8bgxFy02efQ3lZw8GtCrVL84TyomBNZ2ovJO8f8LM
TXT	_acme-challenge.b4failure.dk	m1xRUThWacoSVitzKxmwfXcpTywnFwiR0gsLpuDu7-E
TXT	_acme-challenge.b4failure.dk	mUzBd5_aUEdU0e16rGxpR5HaTQQlBrtnMdspi7Ucz7U
TXT	_acme-challenge.b4failure.dk	o7nxfUe4h4z0SjPkrZvsUYpBNdL3TPdWUCxsK1hFTN8
TXT	_acme-challenge.b4failure.dk	rH8QSd1i28surQH7wzHx9bFvMtmOnrXmOM8uK1gHFgk
TXT	_acme-challenge.b4failure.dk	tK_QPf4IzkNaRWPwx1Dgu3UnHPtib4oMYprPMsKgIUg

🔗 TLSA / DANE

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

🔐 DNSSEC75ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026072300
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

41ms

MX

41ms

AAAA

31ms

TXT

183ms

CAA

45ms

HTTPS

38ms

TLSA

77ms

SOA

0ms

MTA-STS

55ms

DNSSEC

75ms

SRV

51ms

Total

963ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 11:13:21	963ms	4 NS 0 A 3 MX	🔒 Secure	View
2026-07-23 07:29:30	8911ms	4 NS 0 A 3 MX	🔒 Secure	View
2026-07-02 00:00:51	841ms	4 NS 0 A 3 MX	🔒 Secure	View
2026-06-16 13:57:27	794ms	4 NS 0 A 3 MX	🔒 Secure	View