columbia.dk DNS records

🖥️ Nameservers6 records 219ms

Nameserver	IP addresses	PTR	ASN / ISP
pdns1.ultradns.net	2001:502:f3ff::1 204.74.108.1	pdns1.ultradns.net pdns1.ultradns.net	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns2.ultradns.net	204.74.109.1 2610:a1:1014::1	pdns2.ultradns.net pdns2.ultradns.net	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns3.ultradns.org	199.7.68.1 2610:a1:1015::1	pdns3.ultradns.org pdns3.ultradns.org	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns4.ultradns.org	199.7.69.1 2001:502:4612::1	pdns4.ultradns.org pdns4.ultradns.org	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns5.ultradns.info	204.74.114.1 2610:a1:1016::1	pdns5.ultradns.info pdns5.ultradns.info	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns6.ultradns.co.uk	204.74.115.1 2610:a1:1017::1	pdns6.ultradns.co.uk pdns6.ultradns.co.uk	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records4 records 316ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.33.187.23	60s	server-13-33-187-23.fra60.r.cloudfront.net	AS16509	Amazon.com, Inc.	13.32.0.0/11	🇺🇸 United States	New York
13.33.187.30	60s	server-13-33-187-30.fra60.r.cloudfront.net	AS16509	Amazon.com, Inc.	13.32.0.0/11	🇺🇸 United States	New York
13.33.187.53	60s	server-13-33-187-53.fra60.r.cloudfront.net	AS16509	Amazon.com, Inc.	13.32.0.0/11	🇺🇸 United States	New York
13.33.187.71	60s	server-13-33-187-71.fra60.r.cloudfront.net	AS16509	Amazon.com, Inc.	13.32.0.0/11	🇺🇸 United States	New York

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)8 records 327ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2600:9000:235a:1000:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:200:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:4a00:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:6600:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:8200:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:da00:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:ee00:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:235a:f600:b:934b:b300:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.columbia.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:DMARC_Monitoring@Columbia.com

📬 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)

🔐 DNSSEC478ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA325ms

Field	Value
Serial	2011030130
Primary NS (MNAME)	pdns1.ultradns.net
Responsible (RNAME)	jspiegel@columbia.com
Refresh	3600s
Retry	3600s
Expire	432000s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

219ms

A

316ms

MX

299ms

AAAA

327ms

TXT

654ms

CAA

345ms

HTTPS

330ms

TLSA

766ms

SOA

325ms

MTA-STS

316ms

DNSSEC

478ms

SRV

382ms

Total

7214ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-28 13:48:55	7214ms	6 NS 4 A 0 MX	🔓 Insecure	View
2026-06-22 20:06:21	909ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 22:11:45	760ms	6 NS 4 A 0 MX	🔓 Insecure	View
2026-06-20 18:11:58	4920ms	6 NS 4 A 0 MX	🔓 Insecure	View
2026-06-16 21:50:40	508ms	6 NS 4 A 0 MX	🔓 Insecure	View