it-guru.dk

📜 Historical scan 2026-06-18 06:31:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

it-guru.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 28 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.239.32.21 is hosted by Google LLC (AS15169) 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, 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 31ms

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#

4 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.239.32.21	—	any-in-2015.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—
216.239.34.21	—	any-in-2215.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—
216.239.36.21	—	any-in-2415.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—
216.239.38.21	—	any-in-2615.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—

📧 MX Records#

5 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	aspmx.l.google.com	2a00:1450:4010:c1c::1b 64.233.162.26	la-in-f27.1e100.net li-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	—	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	—	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	—	aspmx2.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
30	—	aspmx3.googlemail.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 347ms

TXT Record
google-site-verification=_oIFNvI6nSOlYluygCIilLNvRUI-QUfG3wjbgT6j70g
MS=ms41675248
v=spf1 include:_spf.google.com ~all
zoho-verification=zb14127120.zmverify.zoho.com

✉️ SPF#

Policy	Record (it-guru.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.it-guru.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:21hhqbej@ag.eu.dmarcian.com; ruf=mailto:21hhqbej@fr.eu.dmarcian.com;

📬 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 2026-10-11 03:59:48

www CNAME	ghs.google.com (all on google.com) → 142.251.14.121 2a00:1450:4001:c15::79 (AS15169)
www vs bare domain	Same network it-guru.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) www.it-guru.dk: 142.251.14.121 2a00:1450:4001:c15::79 (AS15169)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~1024 bit below 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

93ms

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

🏷️ SOA#

27ms

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 2026-10-09 08:11:47

Field	Value
Registrar	ONE.COM A/S
Registered	1999-04-28
Expires	2030-06-30 (1342d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

29ms

30ms

AAAA

2023ms

TXT

347ms

CAA

27ms

HTTPS

29ms

TLSA

65ms

SOA

27ms

MTA-STS

40ms

DNSSEC

93ms

SRV

215ms

Total

2756ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 03:59:48	1718ms	2 NS 4 A 5 MX	🔒 Secure
2026-09-13 01:10:25	1283ms	2 NS 4 A 5 MX	🔒 Secure
2026-08-10 10:15:26	9295ms	2 NS 4 A 5 MX	🔒 Secure
2026-07-16 13:12:52	2991ms	2 NS 4 A 5 MX	🔒 Secure
2026-07-11 03:29:06	1493ms	2 NS 4 A 5 MX	🔒 Secure
2026-06-18 06:31:54 shown	2756ms	2 NS 4 A 5 MX	🔒 Secure