openflow.dk

📜 Historical scan 2026-09-30 13:03:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

openflow.dk is a .dk domain served by 2 nameservers (emerson.ns.cloudflare.com, natasha.ns.cloudflare.com). It was registered on 22 December 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.69.213 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 56ms

Nameserver	IP addresses	PTR	ASN / ISP
emerson.ns.cloudflare.com	108.162.195.96 162.159.44.96 172.64.35.96 2606:4700:58::a29f:2c60 2803:f800:50::6ca2:c360 2a06:98c1:50::ac40:2360	emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com emerson.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
natasha.ns.cloudflare.com	108.162.194.117 162.159.38.117 172.64.34.117 2606:4700:50::a29f:2675 2803:f800:50::6ca2:c275 2a06:98c1:50::ac40:2275	natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.69.213	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.94	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
0	300s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
1	300s	aspmx.l.google.com	2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1a 74.125.205.26	lg-in-f26.1e100.net lg-in-x1a.1e100.net le-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:45d5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:d55e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.69.213,172.67.213.94 ech=AEX+DQBBXQAgACAMpYldYzQ9l7qOXBLrrdhR4BcdHHeNfu4qhqehUSG4NQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:45d5,2606:4700:3035::ac43:d55e

📝 TXT Records#

2 records 171ms

TXT Record
MS=ms94023882
v=spf1 include:_spf.google.com include:sendgrid.net include:u3802857.wl108.sendgrid.net ~all

✉️ SPF#

Policy	Record (openflow.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:sendgrid.net include:u3802857.wl108.sendgrid.net ~all

📨 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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 09:07:56

www	104.21.69.213 172.67.213.94 2606:4700:3033::6815:45d5 2606:4700:3035::ac43:d55e (AS13335) (address records, no CNAME)
www vs bare domain	Same network openflow.dk: 104.21.69.213 172.67.213.94 2606:4700:3033::6815:45d5 2606:4700:3035::ac43:d55e (AS13335) www.openflow.dk: 104.21.69.213 172.67.213.94 2606:4700:3033::6815:45d5 2606:4700:3035::ac43:d55e (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

66ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2413389178
Primary NS (MNAME)	emerson.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 22:28:34

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-12-22
Expires	2028-12-31 (805d)

📋 WHOIS#

⏱️ Lookup Timing#

56ms

54ms

45ms

AAAA

28ms

TXT

171ms

CAA

41ms

HTTPS

42ms

TLSA

72ms

SOA

32ms

MTA-STS

40ms

DNSSEC

66ms

SRV

70ms

Total

736ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 09:07:56	1424ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-07 23:31:39	588ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 13:03:13 shown	736ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-24 18:52:50	845ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-29 10:40:30	825ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 09:11:02	784ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 09:05:32	1307ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-16 22:50:14	1465ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 15:38:15	1177ms	2 NS 2 A 5 MX	🔓 Insecure