blackboard.dk

📜 Historical scan 2026-06-20 16:09:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

blackboard.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 35.214.129.96 is hosted by Google Ireland Limited (AS43515) in The Netherlands. Mail is handled by webhotel12.webhosting.dk. The zone is DNSSEC-signed and validates, has no 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#

5 records 94ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1pri.webhosting.dk	157.250.160.80	ns1pri.webhosting.dk	AS3342 Cibicom A/S
ns2.mywebtonet.com	157.250.163.66	ns2.mywebtonet.com	AS3342 Cibicom A/S
ns2.webhosting.dk	157.250.163.65	ns2.webhosting.dk	AS3342 Cibicom A/S
ns3.webhosting.dk	2a01:4f9:c010:7e3d::1 95.217.166.205	— ns3.webhosting.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
ns7.webhosting.dk	159.69.216.38 2a01:4f8:1c0c:6cd6::1	ns7.webhosting.dk —	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 100ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.214.129.96	600s	96.129.214.35.bc.googleusercontent.com	AS43515	Google Ireland Limited	35.214.128.0/17	🇳🇱 The Netherlands	Groningen

📧 MX Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	webhotel12.webhosting.dk	157.250.160.32	webhotel12.webhosting.dk	AS3342 Cibicom A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	php71serv1.webhosting.dk → 157.250.163.29
🔶 Autoconfig	php71serv1.webhosting.dk → 157.250.163.29

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 02:27:09

www	35.214.129.96 (AS43515) (address records, no CNAME)
www vs bare domain	Same network blackboard.dk: 35.214.129.96 (AS43515) www.blackboard.dk: 35.214.129.96 (AS43515)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.blackboard.dk	php71serv1.webhosting.dk

🔗 TLSA / DANE#

2 records 273ms

Service / Owner	Type	Cert association
SMTP _25._tcp.webhotel12.webhosting.dk	DANE-TA · SPKI · SHA-256	FA4EFC305AA17A4FEEE8B29B2DAA8847…
SMTP _25._tcp.webhotel12.webhosting.dk	DANE-EE · SPKI · SHA-256	FA4EFC305AA17A4FEEE8B29B2DAA8847…

🔐 DNSSEC#

226ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

103ms

Field	Value
Serial	3010151083
Primary NS (MNAME)	ns1pri.webhosting.dk
Responsible (RNAME)	hostmaster@webhosting.dk
Refresh	21600s
Retry	3600s
Expire	14515200s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

94ms

100ms

80ms

AAAA

115ms

TXT

455ms

CAA

81ms

HTTPS

103ms

TLSA

273ms

SOA

103ms

MTA-STS

160ms

DNSSEC

226ms

SRV

186ms

Total

1465ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-19 11:24:16	771ms	5 NS 1 A 1 MX	🔒 Secure
2026-09-11 15:56:45	9606ms	5 NS 1 A 1 MX	🔒 Secure
2026-08-26 16:23:21	769ms	5 NS 1 A 1 MX	🔒 Secure
2026-06-30 18:11:10	1083ms	5 NS 1 A 1 MX	🔒 Secure
2026-06-20 16:09:20 shown	1465ms	5 NS 1 A 1 MX	🔒 Secure
2026-06-16 14:45:33	608ms	5 NS 1 A 1 MX	🔒 Secure