reffen.dk

Records from scan: 2026-10-08 05:13:45 · 1266ms total · last checked 2026-10-21 05:18 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

reffen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 5 October 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.136 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by reffen-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 24ms

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 Records#

1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.111.240.136	3600s	webcluster9.webpod11-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 20ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	reffen-dk.mail.protection.outlook.com	2a01:111:f403:ca21::a 2a01:111:f403:ca3c::6 2a01:111:f403:ca48::12 2a01:111:f403:ca48::c 52.101.103.162 52.101.209.153 52.101.68.10 52.101.68.25	mail-maspr04cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00101.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

1 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:102:41:a917:b6aa:137c	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records 222ms

TXT Record
facebook-domain-verification=exjkn04taj8jju08c67icmkcuq2qkp
google-site-verification=JGOAhFO05NN0ZWad9Xwm7tDeLCy3EZjH5ae38kyjoNI
MS=ms99027431
Sendinblue-code:79b125d02191090459333211dbf8f20c
v=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com include:sendgrid.net include:_spf.google.com ~all

✉️ SPF#

Policy	Record (reffen.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com include:spf.sendinblue.com include:sendgrid.net include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.reffen.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; rua=mailto:olifrank+dmarc@streetfooddistrict.dk; ruf=mailto:dmarc@mailinblue.com!10m; rf=afrf; pct=100; ri=86400

📬 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#

checked 2026-10-08 05:13:45

www	77.111.240.136 2a02:2350:5:102:41:a917:b6aa:137c (AS51468) (address records, no CNAME)
www vs bare domain	Same network reffen.dk: 77.111.240.136 2a02:2350:5:102:41:a917:b6aa:137c (AS51468) www.reffen.dk: 77.111.240.136 2a02:2350:5:102:41:a917:b6aa:137c (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

5 found

Selector	CNAME	Key
mail	—	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u41285811.wl062.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u41285811.wl062.sendgrid.net	RSA · ~2048 bit
selector1	selector1-reffen-dk._domainkey.restaurantjulian.r-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-reffen-dk._domainkey.restaurantjulian.r-v1.dkim.mail.microsoft	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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

107ms

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

🏷️ SOA#

47ms

Field	Value
Serial	2026100301
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-04 05:34:04

Field	Value
Registrar	ONE.COM A/S
Registered	2017-10-05
Expires	2026-10-31 (10d)

📋 WHOIS#

⏱️ Lookup Timing#

24ms

46ms

20ms

AAAA

51ms

TXT

222ms

CAA

28ms

HTTPS

61ms

TLSA

655ms

SOA

47ms

MTA-STS

83ms

DNSSEC

107ms

SRV

92ms

Total

1266ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 05:13:45 shown	1266ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 05:24:52	1314ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 04:54:26	1431ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-11 12:05:37	1543ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-30 08:07:25	2690ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 18:53:08	1081ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 07:34:29	977ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 12:16:54	771ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 12:17:31	889ms	2 NS 1 A 1 MX	🔒 Secure