ifdu.dk DNS records

🖥️ Nameservers2 records 67ms

Nameserver	IP addresses	PTR	ASN / ISP
harmony.ns.cloudflare.com	108.162.194.146 162.159.38.146 172.64.34.146 2606:4700:50::a29f:2692 2803:f800:50::6ca2:c292 2a06:98c1:50::ac40:2292	harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sri.ns.cloudflare.com	108.162.193.234 172.64.33.234 173.245.59.234 2606:4700:58::adf5:3bea 2803:f800:50::6ca2:c1ea 2a06:98c1:50::ac40:21ea	sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 120ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.45.105	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.38	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.213.38
🔶 Autoconfig	104.21.45.105

🔷 AAAA Records (IPv6)2 records 102ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:2d69	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:d526	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 61ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.45.105,172.67.213.38 ech=AEX+DQBBRAAgACCnLwJmLitMBK1QAaEjyUWooIefQjI8u06YMkWVcYiNQAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:2d69,2606:4700:3037::ac43:d526

📝 TXT Records2 records 328ms

TXT Record
google-site-verification=Qc6hVxvjWViKQNsK6x968oR8futg8Bnx0mp6gqgUB_g
google-site-verification=ucT1VP4WYU9kdkHi70280clttmYTc3cRmP1ToV3cpME

✉️ 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)

🔐 DNSSEC250ms

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	2413433835
Primary NS (MNAME)	harmony.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

67ms

A

120ms

MX

58ms

AAAA

102ms

TXT

328ms

CAA

87ms

HTTPS

61ms

TLSA

368ms

SOA

0ms

MTA-STS

153ms

DNSSEC

250ms

SRV

152ms

Total

1263ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 18:29:03	1263ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-28 14:48:59	534ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-19 15:48:02	1454ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-09 01:32:50	891ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-23 15:37:14	2021ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-20 11:01:13	9332ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-30 08:58:28	717ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 02:26:53	762ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 20:08:04	840ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 11:56:56	1082ms	2 NS 2 A 0 MX	⚠️ Bogus	View