itguru.dk

📜 Historical scan 2026-07-27 16:10:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

itguru.dk is a .dk domain served by 2 nameservers (hugh.ns.cloudflare.com, tina.ns.cloudflare.com). It was registered on 1 February 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.81 is hosted by Cloudflare, Inc. (AS13335). 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 is reachable over IPv6. 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
hugh.ns.cloudflare.com	108.162.193.117 172.64.33.117 173.245.59.117 2606:4700:58::adf5:3b75 2803:f800:50::6ca2:c175 2a06:98c1:50::ac40:2175	hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com hugh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tina.ns.cloudflare.com	108.162.192.230 172.64.32.230 173.245.58.230 2606:4700:50::adf5:3ae6 2803:f800:50::6ca2:c0e6 2a06:98c1:50::ac40:20e6	tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.81	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.171.109	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	173.194.222.26 2a00:1450:4010:c02::1b 2a00:1450:4010:c02::1b	lo-in-f26.1e100.net le-in-x1b.1e100.net le-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::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	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
10	300s	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

🔷 AAAA Records (IPv6)#

2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:ab6d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:1d51	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.81,172.67.171.109 ech=AEX+DQBBwwAgACCo8nDWFsBoK8csEoeR1Fb8BoKlG1x10pGje79E+Y5UegAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:ab6d,2606:4700:3031::6815:1d51

📝 TXT Records#

4 records 190ms

TXT Record
app-topsoetest-gipsws.azurewebsites.net
google-site-verification=LyUTacBLGDeVPZpkQ1jce97pkeGmEQoi-2Qdc8eJJks
MS=ms90964860
v=spf1 include:aspmx.googlemail.com ~all\" \"\" \"\"

✉️ SPF#

Policy	Record (itguru.dk)
no all — incomplete SPF	v=spf1 include:aspmx.googlemail.com ~all\" \"\" \"\"

📨 DMARC#

Policy	Record (_dmarc.itguru.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email;

📬 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 2026-10-19 14:52:46

www	104.21.29.81 172.67.171.109 2606:4700:3030::ac43:ab6d 2606:4700:3031::6815:1d51 (AS13335) (address records, no CNAME)
www vs bare domain	Same network itguru.dk: 104.21.29.81 172.67.171.109 2606:4700:3030::ac43:ab6d 2606:4700:3031::6815:1d51 (AS13335) www.itguru.dk: 104.21.29.81 172.67.171.109 2606:4700:3030::ac43:ab6d 2606:4700:3031::6815:1d51 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
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: 2/10 · policy: none

error Unknown mechanism "~all\"": receivers treat the record as a permanent error
error Unknown mechanism "\"\"": receivers treat the record as a permanent error
error Unknown mechanism "\"\"": receivers treat the record as a permanent error
warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔗 TLSA / DANE#

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

🔐 DNSSEC#

61ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2410595738
Primary NS (MNAME)	hugh.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 21:01:23

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-02-01
Expires	2028-11-30 (771d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

34ms

37ms

AAAA

31ms

TXT

190ms

CAA

33ms

HTTPS

32ms

TLSA

137ms

SOA

0ms

MTA-STS

50ms

DNSSEC

61ms

SRV

53ms

Total

2599ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 14:52:46	904ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-25 16:13:30	872ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-24 15:57:58	1744ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-11 21:03:56	875ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-07 15:52:28	3192ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-24 12:52:26	1809ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-23 06:33:05	9348ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-09 17:45:54	8085ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-27 16:10:03 shown	2599ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-16 15:03:32	1264ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-22 14:22:48	1169ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-20 16:26:18	1288ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-17 20:18:49	960ms	2 NS 2 A 5 MX	🔒 Secure