lektier-online.dk

📜 Historical scan 2026-06-17 12:54:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

lektier-online.dk is a .dk domain served by 2 nameservers (kim.ns.cloudflare.com, max.ns.cloudflare.com). It was registered on 27 November 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.208 is hosted by Cloudflare, Inc. (AS13335). 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 67ms

Nameserver	IP addresses	PTR	ASN / ISP
kim.ns.cloudflare.com	108.162.192.126 172.64.32.126 173.245.58.126 2606:4700:50::adf5:3a7e 2803:f800:50::6ca2:c07e 2a06:98c1:50::ac40:207e	kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com kim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
max.ns.cloudflare.com	108.162.193.132 172.64.33.132 173.245.59.132 2606:4700:58::adf5:3b84 2803:f800:50::6ca2:c184 2a06:98c1:50::ac40:2184	max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.ns.cloudflare.com max.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
104.21.5.208	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.133.215	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:5d0	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:85d7	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.5.208,172.67.133.215 ech=AEX+DQBBEQAgACDI4xqwwmAc0aVdhaScxMRTfCZo1/vM6WMg5h+quY5QUgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:5d0,2606:4700:3037::ac43:85d7

📝 TXT Records#

2 records 2165ms

TXT Record
google-site-verification=eFxUQM2-QoGAv-cQL3fZ1Kn_-3XbAmn0N8Rfbru2Cn8
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.lektier-online.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-25 05:06:25

www	104.21.5.208 172.67.133.215 2606:4700:3032::ac43:85d7 2606:4700:3033::6815:5d0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network lektier-online.dk: 104.21.5.208 172.67.133.215 2606:4700:3032::ac43:85d7 2606:4700:3033::6815:5d0 (AS13335) www.lektier-online.dk: 104.21.5.208 172.67.133.215 2606:4700:3032::ac43:85d7 2606:4700:3033::6815:5d0 (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

🔎 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#

147ms

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

🏷️ SOA#

37ms

Field	Value
Serial	2406589209
Primary NS (MNAME)	kim.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 06:00:44

Field	Value
Registrar	Simply.com A/S
Registered	2019-11-27
Expires	2026-11-30 (35d)

📋 WHOIS#

⏱️ Lookup Timing#

67ms

48ms

52ms

AAAA

39ms

TXT

2165ms

CAA

41ms

HTTPS

41ms

TLSA

164ms

SOA

37ms

MTA-STS

149ms

DNSSEC

147ms

SRV

0ms

Total

4292ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-25 05:06:25	493ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-09 05:48:07	778ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-05 05:21:36	3088ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 04:53:17	604ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-22 07:26:37	1140ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-15 13:46:16	1311ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-01 19:07:02	2193ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-22 07:45:41	965ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-05 04:30:52	853ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-29 04:48:10	1550ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-23 18:44:35	3406ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-22 17:06:36	2730ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-04 18:08:53	1437ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-27 11:24:51	610ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-23 11:11:08	1117ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 00:47:00	432ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 19:15:18	518ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 18:29:40	780ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 12:54:26 shown	4292ms	2 NS 2 A 0 MX	🔓 Insecure