a1performance.dk

📜 Historical scan 2026-08-16 04:33:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a1performance.dk is a .dk domain served by 2 nameservers (ns1.register.it, ns2.register.it). It was registered on 21 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.125.172.46 is hosted by Amazon.com, Inc. (AS16509) in Germany. Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 134ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.register.it	2a01:8100:2911::2:184:2 81.88.61.2	— host-81-88-61-2.dedicatedservers.it	AS39729 Register S.p.A. AS39729 Register S.p.A.
ns2.register.it	195.7.227.1 2a00:13b0:2::227:1	ns2.register.it —	AS8622 Team Blue Internet Services Uk Limited AS8622 Team Blue Internet Services Uk Limited

🌍 A Records#

2 records 121ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
3.125.172.46	3600s	ec2-3-125-172-46.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	3.96.0.0/11	🇩🇪 Germany	Frankfurt am Main
3.73.27.108	3600s	ec2-3-73-27-108.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	3.64.0.0/12	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 8115ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 8321ms

TXT Record
v=spf1 include:spf.simply.com include:spfuser.webnode.com ~all

✉️ SPF#

Policy	Record (a1performance.dk)
~all (soft fail)	v=spf1 include:spf.simply.com include:spfuser.webnode.com ~all

📨 DMARC#

Policy	Record (_dmarc.a1performance.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-08 16:01:09

www CNAME	personlig-traener-df7b3c.webnode.dk (all on webnode.dk) → 18.185.25.67 3.79.173.192 (AS16509)
www vs bare domain	Same network a1performance.dk: 3.125.172.46 3.73.27.108 (AS16509) www.a1performance.dk: 18.185.25.67 3.79.173.192 (AS16509)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

2 records 59ms

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

🔐 DNSSEC#

8097ms

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

🏷️ SOA#

8075ms

Field	Value
Serial	2026050517
Primary NS (MNAME)	ns1.register.it
Responsible (RNAME)	hostmaster@register.it
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-08 00:41:33

Field	Value
Registrar	Realtime Register B.V.
Registered	2026-03-21
Expires	2027-03-20 (152d)

📋 WHOIS#

⏱️ Lookup Timing#

134ms

121ms

8115ms

AAAA

137ms

TXT

8321ms

CAA

121ms

HTTPS

8114ms

TLSA

59ms

SOA

8075ms

MTA-STS

135ms

DNSSEC

8097ms

SRV

8080ms

Total

24826ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 08:06:50	849ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-05 12:26:11	2574ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-16 04:33:52 shown	24826ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-30 10:52:07	1097ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 13:15:09	2611ms	2 NS 2 A 1 MX	🔓 Insecure