tektra.dk

📜 Historical scan 2026-08-31 18:12:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tektra.dk is a .dk domain served by 2 nameservers (meiling.ns.cloudflare.com, sullivan.ns.cloudflare.com). It was registered on 28 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.44.221 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by tektra-dk.mail.protection.outlook.com. 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 141ms

Nameserver	IP addresses	PTR	ASN / ISP
meiling.ns.cloudflare.com	108.162.194.254 162.159.38.254 172.64.34.254 2606:4700:50::a29f:26fe 2803:f800:50::6ca2:c2fe 2a06:98c1:50::ac40:22fe	meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sullivan.ns.cloudflare.com	108.162.195.161 162.159.44.161 172.64.35.161 2606:4700:58::a29f:2ca1 2803:f800:50::6ca2:c3a1 2a06:98c1:50::ac40:23a1	sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.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 319ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.44.221	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.204.33	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 116ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	tektra-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca09::2 2a01:111:f403:ca09::a 2a01:111:f403:ca38::8 52.101.68.18 52.101.68.25 52.101.68.3 52.101.73.153	mail-db4pr02cu00204.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

2 records 119ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:2cdd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:cc21	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 140ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.44.221,172.67.204.33 ech=AEX+DQBB/gAgACAEG/7Brqe/fvQzazr919c4T8/5fb5mXjy6SOggZUQaaAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:2cdd,2606:4700:3035::ac43:cc21

🔌 SRV Records#

1 records 332ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 637ms

TXT Record
brevo-code:f37d7fa2199b8c0869c24819bf27fed3
MS=ms60920623
v=spf1 include:spf.protection.outlook.com ip4:85.191.96.113 ip4:193.29.201.181 -all

✉️ SPF#

Policy	Record (tektra.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:85.191.96.113 ip4:193.29.201.181 -all

📨 DMARC#

Policy	Record (_dmarc.tektra.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@tektra.dk,mailto:rua@dmarc.brevo.com fo=1;

📬 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 23:39:24

www	104.21.44.221 172.67.204.33 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network tektra.dk: 104.21.44.221 172.67.204.33 2606:4700:3034::6815:2cdd 2606:4700:3035::ac43:cc21 (AS13335) www.tektra.dk: 104.21.44.221 172.67.204.33 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-tektra-dk._domainkey.tektraas.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-tektra-dk._domainkey.tektraas.onmicrosoft.com	RSA · ~1024 bit below 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: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.tektra.dk	Ir34MWMfDUSW1lq63UccHSAYBHD8ps2Fg4v2TrD1cAE
TXT	_acme-challenge.tektra.dk	nPpLamlA9BlePK4LIbGiVuw0sl8ezkwxUl21QsxekWM

🔗 TLSA / DANE#

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

🔐 DNSSEC#

482ms

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	2413549037
Primary NS (MNAME)	meiling.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 12:22:06

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-02-28
Expires	2027-03-31 (159d)

📋 WHOIS#

⏱️ Lookup Timing#

141ms

319ms

116ms

AAAA

119ms

TXT

637ms

CAA

141ms

HTTPS

140ms

TLSA

435ms

SOA

0ms

MTA-STS

377ms

DNSSEC

482ms

SRV

332ms

Total

2892ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 20:49:02	2622ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 20:11:52	1290ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 06:20:01	1537ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 10:42:55	1282ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-14 04:05:32	1557ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-10 20:15:49	1909ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 18:12:31 shown	2892ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 03:17:05	17351ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-02 12:03:06	8223ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 13:50:13	2636ms	2 NS 2 A 1 MX	🔓 Insecure