institut-for-stress.dk DNS records

🖥️ Nameservers2 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
kara.ns.cloudflare.com	108.162.192.123 172.64.32.123 173.245.58.123 2606:4700:50::adf5:3a7b 2803:f800:50::6ca2:c07b 2a06:98c1:50::ac40:207b	kara.ns.cloudflare.com kara.ns.cloudflare.com kara.ns.cloudflare.com kara.ns.cloudflare.com kara.ns.cloudflare.com kara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
steven.ns.cloudflare.com	108.162.195.17 162.159.44.17 172.64.35.17 2606:4700:58::a29f:2c11 2803:f800:50::6ca2:c311 2a06:98c1:50::ac40:2311	steven.ns.cloudflare.com steven.ns.cloudflare.com steven.ns.cloudflare.com steven.ns.cloudflare.com steven.ns.cloudflare.com steven.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.41.120	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.164.193	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:a4c1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:2978	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.41.120,172.67.164.193 ech=AEX+DQBB/AAgACDBkjkQD2BdrQQCoJ5nTdFmGVP+yIPiIHCHLdJamzCvagAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:a4c1,2606:4700:3037::6815:2978

📝 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)

🔐 DNSSEC2048ms

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	2412193688
Primary NS (MNAME)	kara.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

36ms

MX

42ms

AAAA

45ms

TXT

190ms

CAA

55ms

HTTPS

41ms

TLSA

108ms

SOA

0ms

MTA-STS

71ms

DNSSEC

2048ms

SRV

72ms

Total

2794ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-15 21:49:21	2794ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-19 14:55:19	1598ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-04 22:18:51	956ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 12:02:12	2770ms	2 NS 2 A 0 MX	⚠️ Bogus	View
2026-06-17 15:17:12	298ms	0 NS 0 A 0 MX	❓ Unknown	View