sylow.dk

📜 Historical scan 2026-07-03 01:16:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sylow.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 July 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.47.247.18 is hosted by One.com A/S (AS51468). 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 41ms

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
195.47.247.18	600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records#

5 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	173.194.73.27 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1a	lq-in-f27.1e100.net li-in-f26.1e100.net li-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	195.47.247.18
🔶 Autoconfig	195.47.247.18

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 186ms

TXT Record
google-site-verification=e7nCyDhbN3O6EJaCnv2H7hZcjj1LKC31jAgGPGYAWR8

✉️ 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 2026-10-12 22:22:53

www CNAME	sylow.dk (all on sylow.dk) → 195.47.247.18 (AS51468)
www vs bare domain	Same network sylow.dk: 195.47.247.18 (AS51468) www.sylow.dk: 195.47.247.18 (AS51468)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9062ms

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

🏷️ SOA#

23ms

Field	Value
Serial	2026061101
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 2026-10-15 12:31:57

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2002-07-29
Expires	2027-09-30 (344d)

🔗 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#

41ms

46ms

51ms

AAAA

43ms

TXT

186ms

CAA

37ms

HTTPS

35ms

TLSA

60ms

SOA

23ms

MTA-STS

52ms

DNSSEC

9062ms

SRV

61ms

Total

9722ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 22:22:53	1559ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-07 17:14:06	475ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-02 16:16:26	1307ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-29 15:55:23	534ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-27 13:17:16	759ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-13 02:41:21	3891ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-06 03:42:35	719ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-02 03:51:07	831ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-12 22:16:53	4524ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-18 09:13:55	1189ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-13 22:53:45	1102ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-08 22:19:39	1144ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-03 01:16:31 shown	9722ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 22:44:55	674ms	2 NS 1 A 5 MX	🔒 Secure