byp.dk

📜 Historical scan 2026-06-25 10:43:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byp.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 13 October 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 209.42.196.213 is hosted by PrivateSystems Networks (AS63410) in The Netherlands. Mail is handled by byp-dk.l-v1.mx.microsoft. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
209.42.196.213	600s	cw105.codafgroup.com	AS63410	PrivateSystems Networks	209.42.192.0/18	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	byp-dk.l-v1.mx.microsoft	2a01:111:f403:ca04::10 2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 2a01:111:f403:ca09::	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.99.205.40
🔶 Autoconfig	209.42.196.213

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 521ms

TXT Record
google-site-verification=o9czk4PtYedRcoS2a8zLsOIpXkJQ9bE0KgTgyH8_8aM
MS=ms28113121
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 02:20:26

www	209.42.196.213 (AS63410) (address records, no CNAME)
www vs bare domain	Same network byp.dk: 209.42.196.213 (AS63410) www.byp.dk: 209.42.196.213 (AS63410)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 169ms

Service / Owner	Type	Cert association
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…

🔐 DNSSEC#

106ms

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

🏷️ SOA#

78ms

Field	Value
Serial	2025112501
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-14 11:45:37

Field	Value
Registrar	DANDOMAIN A/S
Registered	2023-10-13
Expires	2027-10-12 (360d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

79ms

42ms

43ms

AAAA

29ms

TXT

521ms

CAA

78ms

HTTPS

41ms

TLSA

169ms

SOA

78ms

MTA-STS

74ms

DNSSEC

106ms

SRV

271ms

Total

1158ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 14:11:31	666ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 07:20:56	1166ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:43:10 shown	1158ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 11:08:15	3715ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-23 10:48:52	1144ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 18:25:51	868ms	2 NS 1 A 1 MX	🔒 Secure