teachertime.dk

📜 Historical scan 2026-10-05 18:53:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

teachertime.dk is a .dk domain served by 2 nameservers (jim.ns.cloudflare.com, savanna.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.43.206 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. 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 44ms

Nameserver	IP addresses	PTR	ASN / ISP
jim.ns.cloudflare.com	108.162.193.125 172.64.33.125 173.245.59.125 2606:4700:58::adf5:3b7d 2803:f800:50::6ca2:c17d 2a06:98c1:50::ac40:217d	jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
savanna.ns.cloudflare.com	108.162.194.136 162.159.38.136 172.64.34.136 2606:4700:50::a29f:2688 2803:f800:50::6ca2:c288 2a06:98c1:50::ac40:2288	savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.ns.cloudflare.com savanna.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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.43.206	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.43	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:b92b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:2bce	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 45ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.43.206,172.67.185.43 ech=AEX+DQBBbwAgACCrgGaj8AgUfONzQFXLAncSbj2k6m6cAjSlFop0DhqNNgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:b92b,2606:4700:3035::6815:2bce

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

Policy	Record (_dmarc.teachertime.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 2026-10-07 19:08:16

www	104.21.43.206 172.67.185.43 2606:4700:3030::ac43:b92b 2606:4700:3035::6815:2bce (AS13335) (address records, no CNAME)
www vs bare domain	Same network teachertime.dk: 104.21.43.206 172.67.185.43 2606:4700:3030::ac43:b92b 2606:4700:3035::6815:2bce (AS13335) www.teachertime.dk: 104.21.43.206 172.67.185.43 2606:4700:3030::ac43:b92b 2606:4700:3035::6815:2bce (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

118ms

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

🏷️ SOA#

49ms

Field	Value
Serial	2416684946
Primary NS (MNAME)	jim.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#

44ms

30ms

35ms

AAAA

43ms

TXT

172ms

CAA

49ms

HTTPS

45ms

TLSA

62ms

SOA

49ms

MTA-STS

99ms

DNSSEC

118ms

SRV

78ms

Total

662ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 19:08:16	453ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-05 18:53:17 shown	662ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 18:48:02	530ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 17:10:29	578ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 09:44:46	1005ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 07:41:47	997ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 07:54:37	2142ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 03:20:29	12225ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 00:00:20	2628ms	2 NS 2 A 0 MX	🔓 Insecure