1720.dk

📜 Historical scan 2026-09-16 09:35:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

1720.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.241.117 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by 1720-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 42ms

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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.111.241.117	3600s	webcluster2.wordpresspod2-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	1720-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::f 2a01:111:f403:ca09::a 2a01:111:f403:ca21::e 52.101.209.28 52.101.68.15 52.101.68.21 52.101.91.153	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-matpr04cu00101.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

1 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:104:80ad:4d7c:a109:254f	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#

2 records 160ms

TXT Record
MS=ms18065515
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (1720.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-10-13 23:32:12

www	77.111.241.117 2a02:2350:5:104:80ad:4d7c:a109:254f (AS51468) (address records, no CNAME)
www vs bare domain	Same network 1720.dk: 77.111.241.117 2a02:2350:5:104:80ad:4d7c:a109:254f (AS51468) www.1720.dk: 77.111.241.117 2a02:2350:5:104:80ad:4d7c:a109:254f (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-1720-dk._domainkey.1720dk.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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

123ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091201
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 2026-09-27 12:00:16

Field	Value
Registrar	ONE.COM A/S
Registered	2025-03-06
Expires	2027-03-05 (139d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

32ms

40ms

AAAA

31ms

TXT

160ms

CAA

37ms

HTTPS

33ms

TLSA

411ms

SOA

0ms

MTA-STS

53ms

DNSSEC

123ms

SRV

104ms

Total

1152ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 02:34:13	872ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 11:58:00	1222ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 11:28:01	822ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 11:16:23	1858ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 09:35:56 shown	1152ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 07:40:07	2790ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 15:35:35	2199ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 22:09:02	6200ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 21:58:51	9109ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-03 10:54:00	1005ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-31 17:49:06	2294ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-27 14:49:12	1694ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-26 13:43:05	1459ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-25 13:32:56	1259ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-24 13:19:19	1361ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-23 12:49:57	2083ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-22 02:52:01	1123ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 13:20:36	18263ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 17:48:41	9030ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 12:12:23	1273ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-15 23:37:47	1470ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 02:10:34	2170ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-10 16:13:38	1628ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-09 01:01:44	10873ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-07 12:34:39	1417ms	2 NS 1 A 1 MX	🔒 Secure