teflon.dk DNS records

🖥️ Nameservers4 records 55ms

Nameserver	IP addresses	PTR	ASN / ISP
pdns99.ultradns.biz	156.154.66.99 2610:a1:1015::87	pdns99.ultradns.biz pdns99.ultradns.biz	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns99.ultradns.com	156.154.64.99 2001:502:f3ff::87	pdns99.ultradns.com pdns99.ultradns.com	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns99.ultradns.net	156.154.65.99 2610:a1:1014::87	pdns99.ultradns.net pdns99.ultradns.net	AS12008 Vercara, LLC AS12008 Vercara, LLC
pdns99.ultradns.org	156.154.67.99 2001:502:4612::87	pdns99.ultradns.org pdns99.ultradns.org	AS12008 Vercara, LLC AS12008 Vercara, LLC

🌍 A Records2 records 71ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.64.178	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.187.55	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	teflon.dk.cdn.cloudflare.net → 172.67.187.55
🔶 Autoconfig	teflon.dk.cdn.cloudflare.net → 172.67.187.55

🔷 AAAA Records (IPv6)2 records 81ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:40b2	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:bb37	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 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

✗ 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
CNAME	_acme-challenge.teflon.dk	teflon.dk.cdn.cloudflare.net

🔗 TLSA / DANE

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

🔐 DNSSEC9092ms

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	2015062626
Primary NS (MNAME)	pdns99.ultradns.com
Responsible (RNAME)	domain_admin@chemours.com
Refresh	10800s
Retry	3600s
Expire	2592000s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

55ms

A

71ms

MX

69ms

AAAA

81ms

TXT

233ms

CAA

45ms

HTTPS

57ms

TLSA

64ms

SOA

0ms

MTA-STS

86ms

DNSSEC

9092ms

SRV

92ms

Total

10446ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 05:57:37	10446ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-08-19 07:38:38	5959ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-08-17 14:26:14	2817ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-08-15 02:37:58	9891ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-07-27 17:45:52	10386ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-07-03 00:28:13	10311ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-06-22 20:04:19	1576ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-06-19 22:32:18	1526ms	4 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 11:44:14	1161ms	4 NS 2 A 0 MX	🔓 Insecure	View