c-y.dk DNS records

🖥️ Nameservers3 records 87ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.first-ns.de	213.239.242.238 2a01:4f8:0:a101::a:1	ns1.first-ns.de ns1.first-ns.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
robotns2.second-ns.de	213.133.100.103 2a01:4f8:0:1::5ddc:2	robotns2.second-ns.de robotns2.second-ns.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
robotns3.second-ns.com	193.47.99.3 2001:67c:192c::add:a3	robotns3.second-ns.com robotns3.second-ns.com	AS12337 noris network AG AS12337 noris network AG

🌍 A Records1 records 80ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
78.46.76.143	86400s	static.143.76.46.78.clients.your-server.de	AS24940	Hetzner Online GmbH	78.46.0.0/15	🇩🇪 Germany	Falkenstein

📧 MX Records5 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	86400s	aspmx.l.google.com	173.194.221.27 2a00:1450:4010:c22::1a	lm-in-f27.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	86400s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	86400s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	86400s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	86400s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	78.46.76.143
🔶 Autoconfig	78.46.76.143

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 360ms

TXT Record
google-site-verification=rbyGmMg7JyY7HrJigP1EC2q7qX-SkoKYmrc20kME85U
v=spf1 +a +mx +ip4:78.46.76.143 +ip4:78.46.76.143/46847 +include:schoolapi.xyw.dk include:spf.eu.exclaimer.net ?all

✉️ SPF

Policy	Record (c-y.dk)
?all (neutral)	v=spf1 +a +mx +ip4:78.46.76.143 +ip4:78.46.76.143/46847 +include:schoolapi.xyw.dk include:spf.eu.exclaimer.net ?all

📨 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

🔗 TLSA / DANE

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

🔐 DNSSEC104ms

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

🏷️ SOA0ms

Field	Value
Serial	2026041400
Primary NS (MNAME)	ns1.first-ns.de
Responsible (RNAME)	dns@hetzner.com
Refresh	14400s
Retry	1800s
Expire	604800s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

87ms

A

80ms

MX

59ms

AAAA

98ms

TXT

360ms

CAA

56ms

HTTPS

69ms

TLSA

119ms

SOA

0ms

MTA-STS

103ms

DNSSEC

104ms

SRV

119ms

Total

1019ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 13:55:43	1019ms	3 NS 1 A 5 MX	🔓 Insecure	View
2026-08-25 09:11:58	1193ms	3 NS 1 A 5 MX	🔓 Insecure	View
2026-06-23 20:12:08	1021ms	3 NS 1 A 5 MX	🔓 Insecure	View
2026-06-19 16:11:07	3624ms	3 NS 1 A 5 MX	🔓 Insecure	View
2026-06-16 18:49:27	1267ms	3 NS 1 A 5 MX	🔓 Insecure	View
2026-06-16 18:40:27	727ms	3 NS 1 A 5 MX	🔓 Insecure	View