blog4four.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
dane.ns.cloudflare.com	108.162.193.97 172.64.33.97 173.245.59.97 2606:4700:58::adf5:3b61 2803:f800:50::6ca2:c161 2a06:98c1:50::ac40:2161	dane.ns.cloudflare.com dane.ns.cloudflare.com dane.ns.cloudflare.com dane.ns.cloudflare.com dane.ns.cloudflare.com dane.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
julissa.ns.cloudflare.com	108.162.194.105 162.159.38.105 172.64.34.105 2606:4700:50::a29f:2669 2803:f800:50::6ca2:c269 2a06:98c1:50::ac40:2269	julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com julissa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.84.117	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.191.148	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.84.117
🔶 Autoconfig	104.21.84.117

🔷 AAAA Records (IPv6)2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:5475	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:bf94	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.84.117,172.67.191.148 ech=AEX+DQBBOQAgACDReRiOW+HwoQUTXzsusmUib7wRjR/raK7KozQJ3xIlTQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:5475,2606:4700:3032::ac43:bf94

📝 TXT Records1 records 212ms

TXT Record
google-site-verification=1VtLoeO4gdnWp0YUyYw47E26nKSILcHFZ3Jf4IndQlw

✉️ 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)

🔐 DNSSEC118ms

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	2412076791
Primary NS (MNAME)	dane.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

50ms

A

59ms

MX

56ms

AAAA

53ms

TXT

212ms

CAA

47ms

HTTPS

44ms

TLSA

129ms

SOA

0ms

MTA-STS

57ms

DNSSEC

118ms

SRV

113ms

Total

921ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 12:28:20	921ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 17:44:50	851ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 08:20:22	558ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-14 00:16:47	3008ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-12 19:43:10	16753ms	2 NS 0 A 0 MX	🔓 Insecure	View
2026-08-10 08:47:14	2149ms	2 NS 0 A 0 MX	🔓 Insecure	View