roskildetandteknik.dk

📜 Historical scan 2026-06-20 04:07:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

roskildetandteknik.dk is a .dk domain served by 2 nameservers (dave.ns.cloudflare.com, marge.ns.cloudflare.com). It was registered on 15 May 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.114.96.1 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.flexmail.dk. The zone is not DNSSEC-signed, publishes a 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 51ms

Nameserver	IP addresses	PTR	ASN / ISP
dave.ns.cloudflare.com	108.162.193.109 172.64.33.109 173.245.59.109 2606:4700:58::adf5:3b6d 2803:f800:50::6ca2:c16d 2a06:98c1:50::ac40:216d	dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com dave.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marge.ns.cloudflare.com	108.162.192.191 172.64.32.191 173.245.58.191 2606:4700:50::adf5:3abf 2803:f800:50::6ca2:c0bf 2a06:98c1:50::ac40:20bf	marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.flexmail.dk	185.237.96.43	yjp1.nc4julyloh.com	AS204548 Kamatera Inc

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBEAAgACAMNs+N3CZyuNdAw68DeDISZizAtXC/G+vpfIRHCw46HQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

📝 TXT Records#

2 records 335ms

TXT Record
google-site-verification=aiAmrtNQPyKOENK2nlM23s_JJvNX9nB-V7D91KZiR8E
v=spf1 a mx include:spf.smtp2go.net include:eu.mailgun.org ~all

✉️ SPF#

Policy	Record (roskildetandteknik.dk)
~all (soft fail)	v=spf1 a mx include:spf.smtp2go.net include:eu.mailgun.org ~all

📨 DMARC#

Policy	Record (_dmarc.roskildetandteknik.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=dmarc-reports@flexnet.dk

📬 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 2026-10-23 18:59:05

www	104.21.30.226 172.67.173.229 2606:4700:3030::6815:1ee2 2606:4700:3031::ac43:ade5 (AS13335) (address records, no CNAME)
www vs bare domain	Same network roskildetandteknik.dk: 104.21.30.226 172.67.173.229 2606:4700:3030::6815:1ee2 2606:4700:3031::ac43:ade5 (AS13335) www.roskildetandteknik.dk: 104.21.30.226 172.67.173.229 2606:4700:3030::6815:1ee2 2606:4700:3031::ac43:ade5 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~1024 bit below 2048 bit
k1	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

error include:spf.smtp2go.net has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

1 records 2037ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.flexmail.dk	DANE-EE · SPKI · SHA-256	60A9E5B20435E2B0F67F082407B359A5…

🔐 DNSSEC#

127ms

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

🏷️ SOA#

45ms

Field	Value
Serial	2407091404
Primary NS (MNAME)	dave.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 12:46:33

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-05-15
Expires	2027-05-31 (215d)

📋 WHOIS#

⏱️ Lookup Timing#

51ms

38ms

AAAA

38ms

TXT

335ms

CAA

46ms

HTTPS

37ms

TLSA

2037ms

SOA

45ms

MTA-STS

58ms

DNSSEC

127ms

SRV

79ms

Total

2617ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-23 18:59:05	692ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-15 09:32:25	830ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-14 09:21:02	941ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-04 12:39:21	1531ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 11:04:14	929ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-16 10:04:35	636ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 13:29:44	777ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-01 15:32:44	3160ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-15 14:08:57	1062ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-06 14:53:14	991ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-05 20:40:07	1176ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-03 14:04:04	11342ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 04:07:58 shown	2617ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 22:38:51	1052ms	2 NS 2 A 1 MX	🔓 Insecure