frsgym.dk

📜 Historical scan 2026-08-16 21:52:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

frsgym.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 27 April 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.217.249 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by frsgym-dk.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#

3 records 64ms

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 Records#

1 records 56ms

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 Records#

1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	frsgym-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::c 2a01:111:f403:ca09::6 2a01:111:f403:ca09::f 52.101.68.39 52.101.73.1 52.101.73.153 52.101.73.19	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.40
🔶 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 Records#

1 records 98ms

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

📝 TXT Records#

4 records 256ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-18 15:26:51

www CNAME	frsgym.dk (all on frsgym.dk) → 185.130.190.68 (AS210939)
www vs bare domain	Same network frsgym.dk: 185.130.190.68 (AS210939) www.frsgym.dk: 185.130.190.68 (AS210939)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
selector2	selector2-frsgym-dk._domainkey.efif.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: 2/10 · policy: -all

No problems found

🔏 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)

🔐 DNSSEC#

2062ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2012101929
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-14 12:57:44

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2005-04-27
Expires	2027-04-30 (192d)

🔗 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#

64ms

56ms

46ms

AAAA

58ms

TXT

256ms

CAA

69ms

HTTPS

57ms

TLSA

889ms

SOA

0ms

MTA-STS

68ms

DNSSEC

2062ms

SRV

98ms

Total

3827ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 15:26:51	1156ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 12:43:54	1618ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 08:18:49	1395ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-09 00:43:52	1658ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 00:22:49	2649ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 23:40:28	1023ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 23:39:21	2057ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 22:42:41	2904ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 07:55:26	1111ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 07:23:58	2006ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-21 06:10:38	1363ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-14 03:00:29	7148ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-07 09:37:04	1488ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-05 05:27:49	862ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-04 02:35:22	2574ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-30 13:43:00	1129ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 21:21:57	1070ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 00:02:10	2206ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-26 17:09:08	701ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-24 21:00:58	3477ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-23 20:51:53	6370ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-21 19:22:52	3161ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 18:06:25	26696ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-16 21:52:01 shown	3827ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-15 19:06:40	6000ms	3 NS 1 A 1 MX	🔒 Secure