by-g.dk DNS records

🖥️ Nameservers2 records 50ms

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 Records1 records 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
54.247.118.35	3600s	ec2-54-247-118-35.eu-west-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	54.244.0.0/14	🇮🇪 Ireland	Dublin

📧 MX Records1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	byg-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca48::a 52.101.68.15 52.101.73.12 52.101.73.15 52.101.73.6	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 82ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 169ms

TXT Record
MS=ms18069997
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (by-g.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

🔗 TLSA / DANE

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

🔐 DNSSEC141ms

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

🏷️ SOA0ms

Field	Value
Serial	2025090101
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

50ms

A

52ms

MX

54ms

AAAA

42ms

TXT

169ms

CAA

67ms

HTTPS

25ms

TLSA

735ms

SOA

0ms

MTA-STS

66ms

DNSSEC

141ms

SRV

82ms

Total

1356ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 22:58:25	1356ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 21:32:25	842ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:07:47	588ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:02:20	3671ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:01:38	3926ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 18:00:44	2596ms	2 NS 1 A 1 MX	🔒 Secure	View