niebuhrs.dk DNS records

🖥️ Nameservers2 records 78ms

Nameserver	IP addresses	PTR	ASN / ISP
dave.ns.cloudflare.com	108.162.193.109 172.64.33.109 173.245.59.109 2606:4700:58::adf5:3b6d 2803:f800:50::6ca2:c16d 2a06:98c1:50::ac40:216d	dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
gene.ns.cloudflare.com	108.162.192.158 172.64.32.158 173.245.58.158 2606:4700:50::adf5:3a9e 2803:f800:50::6ca2:c09e 2a06:98c1:50::ac40:209e	gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 70ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 60ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records1 records 73ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBB4AAgACDVQkh6E9H1iX2CM8UBaO0zAlCIBmEXuxeKQfvg+UrNeQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

📝 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

🔗 TLSA / DANE

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

🔐 DNSSEC170ms

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	2410618607
Primary NS (MNAME)	dave.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

78ms

A

70ms

MX

50ms

AAAA

60ms

TXT

205ms

CAA

54ms

HTTPS

73ms

TLSA

8063ms

SOA

0ms

MTA-STS

74ms

DNSSEC

170ms

SRV

93ms

Total

9283ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-27 19:14:58	9283ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-23 16:49:28	1200ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-25 22:10:58	840ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 13:39:02	980ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-24 02:23:47	3580ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-20 21:17:47	1102ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 11:43:08	1001ms	2 NS 2 A 0 MX	🔓 Insecure	View