perfk.dk

Records from scan: 2026-10-12 07:48:50 · 1003ms total · last checked 2026-10-19 12:55 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

perfk.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 18 May 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 199.36.158.100 is hosted by Fastly, Inc. (AS54113) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 29ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
199.36.158.100	3600s	—	AS54113	Fastly, Inc.	199.36.158.0/24	🇺🇸 United States	—

📧 MX Records#

5 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	173.194.73.27 2a00:1450:4010:c0b::1a 2a00:1450:4010:c0b::1a	lq-in-f27.1e100.net lo-in-x1a.1e100.net lo-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	perfk.dk → 199.36.158.100
🔶 Autoconfig	perfk.dk → 199.36.158.100

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 141ms

TXT Record
google-site-verification=swKiVimtOe-5wHhBsuBfxdnVIThGudk4e0OdGX8SCWM
v=spf1 include:_spf.google.com include:_custspf.one.com ~all

✉️ SPF#

Policy	Record (perfk.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:_custspf.one.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#

checked 2026-10-12 07:48:50

www CNAME	perfk.dk (all on perfk.dk) → 199.36.158.100 (AS54113)
www vs bare domain	Same network perfk.dk: 199.36.158.100 (AS54113) www.perfk.dk: 199.36.158.100 (AS54113)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.perfk.dk	perfk.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

109ms

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

🏷️ SOA#

48ms

Field	Value
Serial	2026101101
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 2026-10-12 08:20:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-05-18
Expires	2028-05-31 (589d)

🔗 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
varbjerggaard.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

29ms

35ms

33ms

AAAA

35ms

TXT

141ms

CAA

35ms

HTTPS

35ms

TLSA

135ms

SOA

48ms

MTA-STS

48ms

DNSSEC

109ms

SRV

54ms

Total

1003ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 07:48:50 shown	1003ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-03 22:25:08	487ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-16 18:26:33	798ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-13 04:24:09	1098ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-03 22:41:01	775ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-25 04:31:59	3117ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-12 02:49:44	4836ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-10 20:46:30	5370ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-17 23:35:49	1822ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-14 14:59:11	5318ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-12 08:19:33	1441ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-03 12:52:21	4786ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-20 00:12:45	1089ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 14:34:55	2222ms	2 NS 1 A 5 MX	🔒 Secure