it-nerd.dk

📜 Historical scan 2026-08-30 03:04:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

it-nerd.dk is a .dk domain served by 2 nameservers (lloyd.ns.cloudflare.com, tess.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.44 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by itnerd-dk0e.y-v1.mx.microsoft. 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 92ms

Nameserver	IP addresses	PTR	ASN / ISP
lloyd.ns.cloudflare.com	108.162.193.197 172.64.33.197 173.245.59.197 2606:4700:58::adf5:3bc5 2803:f800:50::6ca2:c1c5 2a06:98c1:50::ac40:21c5	lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tess.ns.cloudflare.com	108.162.192.227 172.64.32.227 173.245.58.227 2606:4700:50::adf5:3ae3 2803:f800:50::6ca2:c0e3 2a06:98c1:50::ac40:20e3	tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.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 106ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.20.44	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.191.85	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 145ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
15	1800s	itnerd-dk0e.y-v1.mx.microsoft	2a01:111:f403:ca04::7 2a01:111:f403:ca04::b 2a01:111:f403:ca09::26 2a01:111:f403:ca48::c 52.101.103.140 52.101.68.12 52.101.73.12 52.101.73.2	mail-db4pr02cu00307.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

2 records 108ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:142c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:bf55	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 117ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.20.44,172.67.191.85 ech=AEX+DQBBSwAgACDWY98L2L5C1U4Caq6ldmfs7mGtaVo+/OnN17nciIkJZAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:142c,2606:4700:3033::ac43:bf55

🔌 SRV Records#

1 records 182ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 327ms

TXT Record
MS=ms69535734
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (it-nerd.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.it-nerd.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:5039ad5068134d16b9f5998ff117baac@dmarc-reports.cloudflare.net,mailto:dmarc.rua@mxbox.dk ; ruf=mailto:dmarc.ruf@mxbox.dk

📬 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 2026-10-17 23:01:13

www	104.21.20.44 172.67.191.85 2606:4700:3032::6815:142c 2606:4700:3033::ac43:bf55 (AS13335) (address records, no CNAME)
www vs bare domain	Same network it-nerd.dk: 104.21.20.44 172.67.191.85 2606:4700:3032::6815:142c 2606:4700:3033::ac43:bf55 (AS13335) www.it-nerd.dk: 104.21.20.44 172.67.191.85 2606:4700:3032::6815:142c 2606:4700:3033::ac43:bf55 (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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 188ms

Service / Owner	Type	Cert association
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	54883CC5F1849331E6BF5002C3129D20…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	EA7A25255D111FC3CE4CB8FABE3ADF9C…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	803F7447CC75B208DBCA042346F5D8DF…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	C1AD7778796D20BCA65C889A26550211…

🔐 DNSSEC#

226ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413432693
Primary NS (MNAME)	lloyd.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

92ms

106ms

145ms

AAAA

108ms

TXT

327ms

CAA

76ms

HTTPS

117ms

TLSA

188ms

SOA

0ms

MTA-STS

156ms

DNSSEC

226ms

SRV

182ms

Total

1589ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 23:01:12	1645ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 22:05:55	1367ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-25 21:56:52	858ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 21:12:57	881ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-10 18:40:50	7071ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-01 14:35:19	9669ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-30 03:04:00 shown	1589ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-19 04:21:54	5729ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-08 23:38:44	1606ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-03 14:06:36	1528ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-16 04:02:11	2323ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 23:41:24	1377ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 00:05:55	830ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 00:31:50	1305ms	2 NS 2 A 1 MX	🔒 Secure