0100.dk

📜 Historical scan 2026-10-01 07:31:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

0100.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 1 April 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 134.209.241.243 is hosted by DigitalOcean, LLC (AS14061) in Germany. Mail is handled by 0100-dk.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#

4 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
134.209.241.243	600s	—	AS14061	DigitalOcean, LLC	134.209.0.0/16	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	0100-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::4 2a01:111:f403:ca04::d 2a01:111:f403:ca48::12 52.101.103.137 52.101.185.24 52.101.68.27 52.101.73.153	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db4pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.56
🔶 Autoconfig	134.209.241.243

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 65ms

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

📝 TXT Records#

1 records 163ms

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

✉️ SPF#

Policy	Record (0100.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 2026-10-12 22:06:21

www	134.209.241.243 (AS14061) (address records, no CNAME)
www vs bare domain	Same network 0100.dk: 134.209.241.243 (AS14061) www.0100.dk: 134.209.241.243 (AS14061)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 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#

86ms

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

🏷️ SOA#

48ms

Field	Value
Serial	2026093000
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-14 20:31:18

Field	Value
Registrar	Simply.com A/S
Registered	2008-04-01
Expires	2027-04-30 (195d)

🔗 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#

36ms

45ms

44ms

AAAA

49ms

TXT

163ms

CAA

36ms

HTTPS

39ms

TLSA

239ms

SOA

48ms

MTA-STS

56ms

DNSSEC

86ms

SRV

65ms

Total

802ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 22:06:21	1348ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-09 13:06:32	1308ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 07:31:01 shown	802ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-01 05:28:49	1515ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-30 05:23:19	575ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-01 08:47:51	1269ms	4 NS 1 A 1 MX	🔒 Secure
2026-08-16 19:47:26	1147ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 17:58:44	1513ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 03:40:08	1160ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-23 07:12:15	1171ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 14:29:38	2094ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-21 22:53:07	1169ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 20:33:15	680ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:33:53	1500ms	4 NS 1 A 1 MX	🔒 Secure