sylvester-carstensen.dk

📜 Historical scan 2026-06-24 02:00:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sylvester-carstensen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 May 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 66.6.44.4 is hosted by Automattic, Inc (AS2635) in United States. Mail is handled by .. 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 36ms

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 52ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
66.6.44.4	43200s	—	AS2635	Automattic, Inc	66.6.40.0/21	🇺🇸 United States	Ashburn

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	. Null MX — domain accepts no email (RFC 7505)

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	domains.tumblr.com → 74.114.154.18
🔶 Autoconfig	domains.tumblr.com → 74.114.154.18

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-10 05:58:28

www	66.6.44.4 (AS2635) (address records, no CNAME)
www vs bare domain	Same network sylvester-carstensen.dk: 66.6.44.4 (AS2635) www.sylvester-carstensen.dk: 66.6.44.4 (AS2635)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.sylvester-carstensen.dk	domains.tumblr.com

🔗 TLSA / DANE#

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

🔐 DNSSEC#

67ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2026061001
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 2026-10-21 14:40:38

Field	Value
Registrar	ONE.COM A/S
Registered	2007-05-02
Expires	2027-05-31 (215d)

🔗 Same registrant#

1 domain

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).

Domain	Registrar
karla-vilda.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

36ms

52ms

34ms

AAAA

107ms

TXT

468ms

CAA

36ms

HTTPS

35ms

TLSA

1626ms

SOA

35ms

MTA-STS

94ms

DNSSEC

67ms

SRV

90ms

Total

2470ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 05:58:28	1322ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 21:12:46	1072ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 00:38:16	1001ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 13:48:07	805ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-11 03:03:41	6954ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 02:00:31 shown	2470ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 01:47:11	1088ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 06:11:52	1807ms	2 NS 1 A 0 MX	🔒 Secure