systematic.dk

Records from scan: 2026-10-18 14:28:50 · 955ms total · last checked 2026-10-19 15:09 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

systematic.dk is a .dk domain served by 2 nameservers (rajeev.ns.cloudflare.com, selah.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.64.205 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by systematic-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
rajeev.ns.cloudflare.com	108.162.193.224 172.64.33.224 173.245.59.224 2606:4700:58::adf5:3be0 2803:f800:50::6ca2:c1e0 2a06:98c1:50::ac40:21e0	rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com rajeev.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
selah.ns.cloudflare.com	108.162.194.21 162.159.38.21 172.64.34.21 2606:4700:50::a29f:2615 2803:f800:50::6ca2:c215 2a06:98c1:50::ac40:2215	selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.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 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.64.205	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.155.211	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	systematic-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca21::8 2a01:111:f403:ca21::a 2a01:111:f403:ca38::a 52.101.68.10 52.101.91.156 52.101.91.162 52.101.91.21	mail-db6pr03cu00105.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-maspr04cu00104.inbound.protection.outlook.com mail-matpr04cu00302.inbound.protection.outlook.com mail-matpr05cu00105.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

🔷 AAAA Records (IPv6)#

2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:9bd3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:40cd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.64.205,172.67.155.211 ech=AEX+DQBBvAAgACBna+jyTvlpYDGQRQiZZDdqjboRr6Bm4yRSsQU9L3txBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:9bd3,2606:4700:3035::6815:40cd

📝 TXT Records#

1 records 175ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (systematic.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.systematic.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:DMARCAdmin@systematic.com

📬 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#

checked 2026-10-18 14:28:50

www	104.21.64.205 172.67.155.211 2606:4700:3034::ac43:9bd3 2606:4700:3035::6815:40cd (AS13335) (address records, no CNAME)
www vs bare domain	Same network systematic.dk: 104.21.64.205 172.67.155.211 2606:4700:3034::ac43:9bd3 2606:4700:3035::6815:40cd (AS13335) www.systematic.dk: 104.21.64.205 172.67.155.211 2606:4700:3034::ac43:9bd3 2606:4700:3035::6815:40cd (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-systematic-dk._domainkey.systematic.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-systematic-dk._domainkey.systematic.onmicrosoft.com	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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

125ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2417722056
Primary NS (MNAME)	rajeev.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

31ms

53ms

45ms

AAAA

43ms

TXT

175ms

CAA

35ms

HTTPS

52ms

TLSA

208ms

SOA

33ms

MTA-STS

51ms

DNSSEC

125ms

SRV

72ms

Total

955ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 14:28:50 shown	955ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-17 12:41:20	1916ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-05 21:50:31	1706ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-29 21:36:32	1084ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-13 17:43:31	1915ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 10:50:26	1475ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 10:41:37	1468ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 09:34:50	1089ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-18 09:28:48	5238ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-17 03:46:25	11369ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-13 00:57:25	2499ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 19:48:23	2172ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 23:24:35	3065ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 02:17:59	1116ms	2 NS 2 A 1 MX	🔓 Insecure