gsl.dk DNS records

🖥️ Nameservers2 records 83ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 72ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
86.52.55.241	600s	86-52-55-241.norlyscustomer.net	AS39642	Sinal A/S	86.52.0.0/16	🇩🇰 Denmark	Viborg

📧 MX Records1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	gsl-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::10 2a01:111:f403:ca09:: 2a01:111:f403:ca09::f 52.101.68.12 52.101.68.39 52.101.73.11 52.101.73.4	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am1pr04cu00103.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 → 40.104.116.40
🔶 Autoconfig	bsd.lynge.org → 86.52.55.241

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 256ms

TXT Record
MS=ms38522336
v=spf1 redirect=lynge.org

✉️ SPF

Policy	Record (gsl.dk)
no all — incomplete SPF	v=spf1 redirect=lynge.org

📨 DMARC

Policy	Record (_dmarc.gsl.dk)
p=none (monitor only)	v=DMARC1; p=none; ruf=mailto:dmarc@lynge.org; fo=1;

📬 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
CNAME	_acme-challenge.gsl.dk	bsd.lynge.org

🔗 TLSA / DANE

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

🔐 DNSSEC183ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

83ms

A

72ms

MX

67ms

AAAA

75ms

TXT

256ms

CAA

77ms

HTTPS

64ms

TLSA

378ms

SOA

0ms

MTA-STS

149ms

DNSSEC

183ms

SRV

233ms

Total

1452ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 23:32:00	1452ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 14:04:50	1646ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 00:16:28	1401ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-29 10:27:12	5520ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 22:24:41	1278ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 00:27:05	1107ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 05:34:06	1192ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 09:31:50	1489ms	2 NS 1 A 1 MX	🔒 Secure	View