sper.dk

📜 Historical scan 2026-08-18 20:45:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sper.dk is a .dk domain served by 2 nameservers (dana.ns.cloudflare.com, peyton.ns.cloudflare.com). It was registered on 15 April 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.7.164 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. 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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
dana.ns.cloudflare.com	108.162.192.105 172.64.32.105 173.245.58.105 2606:4700:50::adf5:3a69 2803:f800:50::6ca2:c069 2a06:98c1:50::ac40:2069	dana.ns.cloudflare.com dana.ns.cloudflare.com dana.ns.cloudflare.com dana.ns.cloudflare.com dana.ns.cloudflare.com dana.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
peyton.ns.cloudflare.com	108.162.193.221 172.64.33.221 173.245.59.221 2606:4700:58::adf5:3bdd 2803:f800:50::6ca2:c1dd 2a06:98c1:50::ac40:21dd	peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.ns.cloudflare.com peyton.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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.7.164	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.136.246	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.7.164
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records 71ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:88f6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:7a4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.7.164,172.67.136.246 ech=AEX+DQBBkwAgACCSCvcc/BOS4OwqCEyJAUhwWdbwHLkSyrxq1CxuBX/GZgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:88f6,2606:4700:3035::6815:7a4

📝 TXT Records#

1 records 187ms

TXT Record
v=spf1 include:spf.simply.com ?all

✉️ SPF#

Policy	Record (sper.dk)
?all (neutral)	v=spf1 include:spf.simply.com ?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 2026-10-18 02:14:38

www	104.21.7.164 172.67.136.246 2606:4700:3034::ac43:88f6 2606:4700:3035::6815:7a4 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sper.dk: 104.21.7.164 172.67.136.246 2606:4700:3034::ac43:88f6 2606:4700:3035::6815:7a4 (AS13335) www.sper.dk: 104.21.7.164 172.67.136.246 2606:4700:3034::ac43:88f6 2606:4700:3035::6815:7a4 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

2 records 76ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC#

143ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2412508941
Primary NS (MNAME)	dana.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 18:59:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-04-15
Expires	2027-06-30 (254d)

🔗 Same registrant#

11 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
danskroning.dk	Key-Systems GmbH
familienhaagensen.dk	Punktum dk A/S (direct)
foreningshjælp.dk	Punktum dk A/S (direct)
ingeman-petersen.dk	Punktum dk A/S (direct)
internetbranding.dk	Punktum dk A/S (direct)
mpus.dk	Punktum dk A/S (direct)
organicseedfactory.dk	Punktum dk A/S (direct)
promoseeds.dk	Punktum dk A/S (direct)
rofitness.dk	Punktum dk A/S (direct)
rosportdanmark.dk	Key-Systems GmbH
sexinstruktor.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

48ms

51ms

AAAA

71ms

TXT

187ms

CAA

57ms

HTTPS

51ms

TLSA

76ms

SOA

0ms

MTA-STS

64ms

DNSSEC

143ms

SRV

8088ms

Total

8903ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 02:14:38	442ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-17 02:02:55	1530ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 13:37:03	993ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 13:31:14	705ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 00:48:03	3061ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-21 09:55:28	745ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-14 21:18:13	1241ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-11 16:17:14	1473ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-06 04:53:07	984ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 02:02:27	569ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 00:59:39	1612ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-21 21:43:25	6121ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-18 20:45:21 shown	8903ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 19:47:42	2146ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 22:14:04	4906ms	2 NS 2 A 1 MX	🔓 Insecure