byp.dk

📜 Historical scan 2026-08-28 07:20:56 · ← 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, publishes a 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 38ms

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 54ms

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 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	byp-dk.l-v1.mx.microsoft	2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca09:: 2a01:111:f403:ca09::8 52.101.181.153 52.101.73.1 52.101.73.126 52.101.73.4	mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.8
🔶 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 143ms

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#

Policy	Record (_dmarc.byp.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

🧩 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#

4 records 411ms

Service / Owner	Type	Cert association
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.byp-dk.l-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…

🔐 DNSSEC#

83ms

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

🏷️ SOA#

0ms

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#

38ms

54ms

47ms

AAAA

64ms

TXT

143ms

CAA

33ms

HTTPS

41ms

TLSA

411ms

SOA

0ms

MTA-STS

81ms

DNSSEC

83ms

SRV

65ms

Total

1166ms

🕐 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 shown	1166ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:43:10	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