gurusoft.dk

📜 Historical scan 2026-09-24 23:22:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

gurusoft.dk is a .dk domain served by 2 nameservers (charles.ns.cloudflare.com, savanna.ns.cloudflare.com). It was registered on 2 July 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a 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
charles.ns.cloudflare.com	108.162.193.83 172.64.33.83 173.245.59.83 2606:4700:58::adf5:3b53 2803:f800:50::6ca2:c153 2a06:98c1:50::ac40:2153	charles.ns.cloudflare.com charles.ns.cloudflare.com charles.ns.cloudflare.com charles.ns.cloudflare.com charles.ns.cloudflare.com charles.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
savanna.ns.cloudflare.com	108.162.194.136 162.159.38.136 172.64.34.136 2606:4700:50::a29f:2688 2803:f800:50::6ca2:c288 2a06:98c1:50::ac40:2288	savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

5 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 64.233.161.27	li-in-f27.1e100.net li-in-x1b.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	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
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	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	gurusoft.duckdns.org → 77.215.238.99
🔶 Autoconfig	gurusoft.duckdns.org → 77.215.238.99

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 375ms

TXT Record
v=spf1 include:_spf.google.com ip4:77.215.238.99 -all

✉️ SPF#

Policy	Record (gurusoft.dk)
-all (hard fail)	v=spf1 include:_spf.google.com ip4:77.215.238.99 -all

📨 DMARC#

Policy	Record (_dmarc.gurusoft.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:e353312abc414003a773ae6362c6cf68@dmarc-reports.cloudflare.net

📬 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 08:00:34

www CNAME	gurusoft.duckdns.org (all on duckdns.org) → 77.215.238.99 (AS9158)
www vs bare domain	Only www resolves gurusoft.dk: no address www.gurusoft.dk: 77.215.238.99 (AS9158) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.gurusoft.dk	S9Ny0mpv1OPril76wGcj6cjRO0fWff_d1jsvM7CG9lg
TXT	_acme-challenge.gurusoft.dk	SwHRWiHNFn91A7sF_pARHsOwTMjpInpDxRBG2h3RJCs
TXT	_acme-challenge.gurusoft.dk	uL-a1r7SCHpD-06cg8kbOEmIuu-5X92cu0UwvJBtCqI
TXT	_acme-challenge.gurusoft.dk	vHM53a96luHYdZwsDfRy10FO5spKPc601MiQXQFh2jI

🔗 TLSA / DANE#

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

🔐 DNSSEC#

107ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2415734373
Primary NS (MNAME)	charles.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 10:28:38

Field	Value
Registrar	dns.services ApS
Registered	2001-07-02
Expires	2034-09-30 (2905d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

39ms

36ms

AAAA

57ms

TXT

375ms

CAA

35ms

HTTPS

38ms

TLSA

239ms

SOA

0ms

MTA-STS

258ms

DNSSEC

107ms

SRV

363ms

Total

1751ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 08:00:34	2100ms	2 NS 0 A 5 MX	🔒 Secure
2026-10-07 05:40:10	2716ms	2 NS 0 A 5 MX	🔒 Secure
2026-09-24 23:22:56 shown	1751ms	2 NS 0 A 5 MX	🔒 Secure
2026-09-23 21:45:11	1095ms	2 NS 0 A 5 MX	🔒 Secure
2026-09-19 14:26:32	1844ms	2 NS 0 A 5 MX	🔒 Secure
2026-09-16 19:03:33	4293ms	2 NS 0 A 5 MX	🔒 Secure
2026-09-14 05:04:35	1734ms	2 NS 0 A 5 MX	🔒 Secure
2026-08-23 04:49:37	9898ms	2 NS 0 A 5 MX	🔒 Secure
2026-08-18 00:31:36	2834ms	2 NS 0 A 5 MX	🔒 Secure
2026-08-09 03:46:53	1640ms	2 NS 0 A 5 MX	🔒 Secure
2026-08-04 03:41:04	2693ms	2 NS 0 A 5 MX	🔒 Secure
2026-07-26 17:23:25	1796ms	2 NS 0 A 5 MX	🔒 Secure
2026-07-22 07:19:49	2344ms	2 NS 0 A 5 MX	🔒 Secure
2026-07-21 02:42:07	2479ms	2 NS 0 A 5 MX	🔒 Secure
2026-07-18 13:00:03	10692ms	2 NS 0 A 5 MX	🔒 Secure
2026-07-05 23:01:43	2382ms	2 NS 0 A 5 MX	🔒 Secure
2026-06-21 22:19:21	2866ms	2 NS 0 A 5 MX	🔒 Secure
2026-06-21 14:54:21	1160ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 08:37:11	5275ms	2 NS 0 A 5 MX	🔒 Secure
2026-06-17 10:10:12	7312ms	2 NS 0 A 5 MX	🔒 Secure