5e-byg.dk

📜 Historical scan 2026-06-24 11:56:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

5e-byg.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 31 July 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.250.163.35 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by 5ebyg-dk0e.mail.protection.outlook.com. 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 115ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 116ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.250.163.35	3600s	php73serv1.webhosting.dk	AS3342	Cibicom A/S	157.250.160.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 118ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	5ebyg-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::2 2a01:111:f403:ca09::6 2a01:111:f403:ca09::8 52.101.68.16 52.101.73.19 52.101.73.22 52.101.73.6	mail-db6pr03cu00105.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 412ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	5.103.14.218.5e-byg.dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 276ms

TXT Record
MS=ms21364629
v=spf1 mx a:spamfilter.it-mark.dk a:spamfilter2.it-mark.dk include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (5e-byg.dk)
~all (soft fail)	v=spf1 mx a:spamfilter.it-mark.dk a:spamfilter2.it-mark.dk include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.5e-byg.dk)
p=reject	v=DMARC1; p=reject; fo=1; rua=mailto:dmarc@5e-byg.dk;ruf=mailto:dmarc@5e-byg.dk

📬 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 2026-10-08 00:57:43

www	157.250.163.35 (AS3342) (address records, no CNAME)
www vs bare domain	Same network 5e-byg.dk: 157.250.163.35 (AS3342) www.5e-byg.dk: 157.250.163.35 (AS3342)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-5ebyg-dk0e._domainkey.5ebyg.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-5ebyg-dk0e._domainkey.5ebyg.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

269ms

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

🏷️ SOA#

111ms

Field	Value
Serial	2026030904
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-16 11:08:27

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-07-31
Expires	2027-07-31 (287d)

🔗 Same registrant#

3 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).

Domain	Registrar
5ebyg.dk	Punktum dk A/S (direct)
boiodense.dk	Punktum dk A/S (direct)
odensebo.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

115ms

116ms

118ms

AAAA

106ms

TXT

276ms

CAA

102ms

HTTPS

98ms

TLSA

146ms

SOA

111ms

MTA-STS

2064ms

DNSSEC

269ms

SRV

412ms

Total

2647ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 23:33:10	912ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 23:02:05	2350ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 11:56:31 shown	2647ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 07:08:31	992ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 10:08:38	978ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:45:56	924ms	2 NS 1 A 1 MX	🔒 Secure