realt.dk DNS records

🖥️ Nameservers2 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
colin.ns.cloudflare.com	108.162.195.75 162.159.44.75 172.64.35.75 2606:4700:58::a29f:2c4b 2803:f800:50::6ca2:c34b 2a06:98c1:50::ac40:234b	colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com colin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
zara.ns.cloudflare.com	108.162.192.148 172.64.32.148 173.245.58.148 2606:4700:50::adf5:3a94 2803:f800:50::6ca2:c094 2a06:98c1:50::ac40:2094	zara.ns.cloudflare.com zara.ns.cloudflare.com zara.ns.cloudflare.com zara.ns.cloudflare.com zara.ns.cloudflare.com zara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.47.74	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.170.168	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.170.168
🔶 Autoconfig	104.21.47.74

🔷 AAAA Records (IPv6)2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::ac43:aaa8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:2f4a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 49ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.47.74,172.67.170.168 ech=AEX+DQBBXgAgACBNPx3TzUk8gOrhm64d7MvOvr4SkLtjuEtxmwO3A7eYHgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::ac43:aaa8,2606:4700:3037::6815:2f4a

📝 TXT Records

📝

No TXT records found

✉️ 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.realt.dk	Fl9jmK7d5-t2Jkpudho_ruN6zlIvMjM2kRelJrz5Ep4
TXT	_acme-challenge.realt.dk	N9Y6enkV3Q43GkdhCwt1qJmZN4HQyGz_jA5kLcFabQM

🔗 TLSA / DANE

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

🔐 DNSSEC120ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2414710369
Primary NS (MNAME)	colin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

45ms

A

43ms

MX

29ms

AAAA

46ms

TXT

174ms

CAA

34ms

HTTPS

49ms

TLSA

60ms

SOA

0ms

MTA-STS

72ms

DNSSEC

120ms

SRV

71ms

Total

1359ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-14 01:52:34	1359ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-09-07 20:41:30	189ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-31 06:10:40	157ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-29 21:35:49	594ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-28 19:31:29	376ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-27 18:36:12	938ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-27 18:13:55	160ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-26 17:01:53	200ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-25 15:38:26	370ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-24 13:29:18	353ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-22 22:51:33	805ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-21 22:46:26	1680ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-20 22:32:37	2138ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-19 22:04:28	8811ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-18 20:58:07	3884ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-17 06:55:32	835ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-16 04:37:54	820ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-14 05:22:34	2953ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-13 00:35:29	746ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-08-10 17:24:34	743ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-06-30 06:34:20	640ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-21 10:55:17	452ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-20 23:14:04	2667ms	3 NS 1 A 0 MX	🔒 Secure	View
2026-06-20 16:12:04	893ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 19:08:38	446ms	3 NS 1 A 0 MX	🔒 Secure	View