optimizely.dk DNS records

🖥️ Nameservers2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
norah.ns.cloudflare.com	108.162.194.70 162.159.38.70 172.64.34.70 2606:4700:50::a29f:2646 2803:f800:50::6ca2:c246 2a06:98c1:50::ac40:2246	norah.ns.cloudflare.com norah.ns.cloudflare.com norah.ns.cloudflare.com norah.ns.cloudflare.com norah.ns.cloudflare.com norah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rex.ns.cloudflare.com	108.162.195.13 162.159.44.13 172.64.35.13 2606:4700:58::a29f:2c0d 2803:f800:50::6ca2:c30d 2a06:98c1:50::ac40:230d	rex.ns.cloudflare.com rex.ns.cloudflare.com rex.ns.cloudflare.com rex.ns.cloudflare.com rex.ns.cloudflare.com rex.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.83.192	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.180.222	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 22ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:b4de	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:53c0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.83.192,172.67.180.222 ech=AEX+DQBBRwAgACDPbTCWcV+McLVVNspbOGWAbzzTs7tbSKf0Ltkd1UPwPAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:b4de,2606:4700:3037::6815:53c0

📝 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.optimizely.dk	Vb-P_sqR_JppRsYUkA8b5OuJ18cdPsnJrvQFSEvaNIE
TXT	_acme-challenge.optimizely.dk	a474Up9uh2kIZoLqFE2LbZMfOUYhKiVzc6Epsg3Gu1g

🔗 TLSA / DANE

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

🔐 DNSSEC100ms

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	2413668946
Primary NS (MNAME)	norah.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

27ms

A

27ms

MX

51ms

AAAA

22ms

TXT

149ms

CAA

21ms

HTTPS

35ms

TLSA

43ms

SOA

0ms

MTA-STS

40ms

DNSSEC

100ms

SRV

54ms

Total

486ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 02:35:48	486ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-03 17:21:59	676ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-01 17:21:44	892ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-30 09:40:13	1101ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-25 09:24:28	3295ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 00:50:56	1002ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-21 20:41:20	623ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-21 08:46:44	1120ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-21 02:15:17	750ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 23:11:05	1182ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 18:55:58	734ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 13:35:23	2437ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 23:51:24	752ms	4 NS 1 A 1 MX	🔓 Insecure	View