onlineplus.dk

📜 Historical scan 2026-08-25 04:15:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

onlineplus.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 12 January 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.130 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by onlineplus-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#

2 records 39ms

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 Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.130	300s	linux102.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	onlineplus-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09:: 2a01:111:f403:ca09::2 2a01:111:f403:ca09::f 52.101.68.36 52.101.73.15 52.101.73.22 52.101.73.4	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00106.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	185.21.41.130

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 60ms

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

📝 TXT Records#

3 records 163ms

TXT Record
klaviyo-site-verification=Ungnrv
MS=ms79508200
v=spf1 ip4:209.85.219.195 ip4:35.163.183.252 ip4:100.21.76.215 ip4:52.33.15.82 ip4:35.164.205.162 ip4:44.229.175.52 ip4:54.203.226.152 include:spf.curanet.dk include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:_spf.eu.mailgun.org -all

✉️ SPF#

Policy	Record (onlineplus.dk)
-all (hard fail)	v=spf1 ip4:209.85.219.195 ip4:35.163.183.252 ip4:100.21.76.215 ip4:52.33.15.82 ip4:35.164.205.162 ip4:44.229.175.52 ip4:54.203.226.152 include:spf.curanet.dk include:spf.protection.outlook.com include:spf.mandrillapp.com include:sendgrid.net include:_spf.eu.mailgun.org -all

📨 DMARC#

Policy	Record (_dmarc.onlineplus.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 02:18:53

www	185.21.41.130 (AS48854) (address records, no CNAME)
www vs bare domain	Same network onlineplus.dk: 185.21.41.130 (AS48854) www.onlineplus.dk: 185.21.41.130 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u40324647.wl148.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u40324647.wl148.sendgrid.net	RSA · ~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: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

71ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026082001
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-05 21:53:24

Field	Value
Registrar	CURANET A/S
Registered	2011-01-12
Expires	2027-01-31 (105d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

40ms

50ms

AAAA

48ms

TXT

163ms

CAA

48ms

HTTPS

34ms

TLSA

751ms

SOA

0ms

MTA-STS

53ms

DNSSEC

71ms

SRV

60ms

Total

1304ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 21:34:14	863ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 21:22:46	824ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 07:47:08	676ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-15 17:00:51	1440ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 04:15:34 shown	1304ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 14:19:48	1943ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-03 11:15:18	2072ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 05:42:28	1130ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 15:55:27	1128ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 08:46:53	923ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:11:33	1129ms	2 NS 1 A 1 MX	🔒 Secure