frsgym.dk DNS records

🖥️ Nameservers3 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.efif.dk	195.254.168.23	ns.efif.dk	AS51073 Aarhus Business College
ns2.efif.dk	195.254.168.12	ns2.efif.dk	AS51073 Aarhus Business College
ns3.efif.dk	20.23.170.35	—	AS8075 Microsoft Corporation

🌍 A Records1 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.249	300s	vps.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	frsgym-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::d 2a01:111:f403:ca04::f 2a01:111:f403:ca48::8 52.101.209.153 52.101.68.25 52.101.68.27 52.101.73.19	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.56
🔶 Autoconfig	wsd1.surf-town.net → 212.97.134.31

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 92ms

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

📝 TXT Records4 records 101ms

TXT Record
+UJO0VVpXtjMLWgjTMUeGZYs1oIpWTZLo4Ch7Mr3oy81yE1yK0+fvcyAiRhn5nWTK1nsxaSQGI/K2WFAXGEz6Q==
Frederikssund Gymnasium
MS=ms14160564
v=spf1 include:spf.protection.outlook.com include:_spf.simpledigital.dk -all

✉️ SPF

Policy	Record (frsgym.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.simpledigital.dk -all

📨 DMARC

Policy	Record (_dmarc.frsgym.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@frsgym.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com

📬 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.frsgym.dk	wsd1.surf-town.net

🔗 TLSA / DANE

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

🔐 DNSSEC97ms

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

🏷️ SOA0ms

Field	Value
Serial	2012101936
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

32ms

A

30ms

MX

30ms

AAAA

30ms

TXT

101ms

CAA

29ms

HTTPS

33ms

TLSA

603ms

SOA

0ms

MTA-STS

63ms

DNSSEC

97ms

SRV

92ms

Total

1129ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 13:43:00	1129ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 21:21:57	1070ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 00:02:10	2206ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 17:09:08	701ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 21:00:58	3477ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 20:51:53	6370ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 19:22:52	3161ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 18:06:25	26696ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 21:52:01	3827ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 19:06:40	6000ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-14 16:28:27	10477ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-09 05:41:02	5467ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 22:24:17	3258ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-05 02:49:27	1365ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-31 08:18:27	6359ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 14:24:43	33219ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 11:31:04	10851ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 03:52:44	5540ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-20 00:29:36	12087ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 17:14:46	18397ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-15 16:46:14	9102ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 21:41:29	1237ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-10 10:23:06	1505ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 17:08:00	1551ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-04 18:34:22	4926ms	3 NS 1 A 1 MX	🔒 Secure	View