group-online.dk

📜 Historical scan 2026-06-20 05:16:48  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

group-online.dk is a .dk domain served by 2 nameservers (ns1.dnsserver.dk, ns2.dnsserver.dk). It was registered on 28 October 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.8.37.240 is hosted by Norlys Telco A/S (AS3308) in Denmark. Mail is handled by grouponline-dk01c.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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   92ms
NameserverIP addressesPTRASN / ISP
ns1.dnsserver.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.dnsserver.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   90ms
IPTTLPTRASNISP / OrgCIDRCountryCity
193.8.37.240 700s — AS3308 Norlys Telco A/S 193.8.36.0/23 🇩🇰 Denmark Ølstykke

📧 MX Records#

1 records   47ms
PriorityTTLMail ServerIP addressesPTRASN
0 700s grouponline-dk01c.mail.protection.outlook.com 2a01:111:f403:ca04::b
2a01:111:f403:ca09::4
2a01:111:f403:ca09::6
2a01:111:f403:ca09::c
52.101.68.12
52.101.68.16
52.101.68.21
52.101.73.8		 mail-dbbpr03cu00103.inbound.protection.outlook.com
mail-am0pr04cu00504.inbound.protection.outlook.com
mail-am4pr0401cu00106.inbound.protection.outlook.com
mail-as8pr05cu00304.inbound.protection.outlook.com
mail-db9pr02cu00204.inbound.protection.outlook.com
mail-db4pr02cu00400.inbound.protection.outlook.com
mail-db4pr02cu00205.inbound.protection.outlook.com
mail-am0pr04cu00500.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#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.56
🔶 Autoconfig193.8.37.240

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   110ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com

📝 TXT Records#

1 records   254ms
TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.mtasv.net include:trustpilotservice.com ip4:193.8.36.0/22 ip4:212.97.210.230 ip4:77.66.0.0/17 ip4:217.198.104.3 ip4:213.205.44.0/23 ip4:185.26.229.213 ip4:91.194.150.165 -all

✉️ SPF#

PolicyRecord (group-online.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com include:spf.mtasv.net include:trustpilotservice.com ip4:193.8.36.0/22 ip4:212.97.210.230 ip4:77.66.0.0/17 ip4:217.198.104.3 ip4:213.205.44.0/23 ip4:185.26.229.213 ip4:91.194.150.165 -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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 03:16:25
www193.8.37.240 (AS3308) (address records, no CNAME)
www vs bare domainSame network
group-online.dk: 193.8.37.240 (AS3308)
www.group-online.dk: 193.8.37.240 (AS3308)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

80ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

42ms
FieldValue
Serial2025120101
Primary NS (MNAME)ns1.dnsserver.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-11 21:42:27
FieldValue
RegistrarCURANET A/S
Registered2019-10-28
Expires2026-10-31 (8d)

🔗 Same registrant#

66 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).

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webserver1.dkCURANET A/S
webserver10.dkCURANET A/S
webserver13.dkCURANET A/S
webserver15.dkCURANET A/S
webserver16.dkCURANET A/S
webserver2.dkCURANET A/S
webserver20.dkCURANET A/S
webserver26.dkCURANET A/S
webserver29.dkCURANET A/S
webserver35.dkCURANET A/S
webserver39.dkCURANET A/S
webserver4.dkCURANET A/S
webserver40.dkCURANET A/S
webserver44.dkCURANET A/S
webserver45.dkCURANET A/S
webserver48.dkCURANET A/S
webserver6.dkCURANET A/S
webserver7.dkCURANET A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
92ms
A
90ms
MX
47ms
AAAA
28ms
TXT
254ms
CAA
41ms
HTTPS
33ms
TLSA
720ms
SOA
42ms
MTA-STS
33ms
DNSSEC
80ms
SRV
110ms
Total
1238ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-29 20:30:10 739ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-27 10:55:58 1251ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-25 04:21:26 1957ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-20 05:16:48 shown 1238ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 10:17:45 4781ms 2 NS 1 A 1 MX 🔒 Secure
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