cheng.dk DNS records

🖥️ Nameservers2 records 58ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.116.232.205	3600s	205.giga-ptr.232.116.217.in-addr.arpa web5.gigahost.dk	AS47292	Sentia Denmark A/S	217.116.224.0/20	🇩🇰 Denmark	—

📧 MX Records5 records 51ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.9.27 2a00:1450:4025:c01::1b	rc-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 246ms

TXT Record
_dmarc.cheng.dk
google-site-verification=dTuFHZ1GxZKxb835od93NpNNCykdGLZBbW1hNUBTMGo
v=spf1 a include:spf.gigahost.dk include:_spf.google.com ~all

✉️ SPF

Policy	Record (cheng.dk)
~all (soft fail)	v=spf1 a include:spf.gigahost.dk include:_spf.google.com ~all

📨 DMARC

Policy	Record (_dmarc.cheng.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@cheng.dk; pct=100

📬 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)

🔐 DNSSEC152ms

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

🏷️ SOA0ms

Field	Value
Serial	2026071401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

58ms

A

53ms

MX

51ms

AAAA

43ms

TXT

246ms

CAA

60ms

HTTPS

55ms

TLSA

8046ms

SOA

0ms

MTA-STS

62ms

DNSSEC

152ms

SRV

92ms

Total

9432ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 11:50:52	858ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-08-10 14:06:39	17112ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-16 08:59:03	9432ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-13 12:38:01	5359ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-07-12 01:37:56	1260ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-29 23:17:19	944ms	2 NS 1 A 5 MX	🔒 Secure	View
2026-06-16 20:25:40	637ms	2 NS 1 A 5 MX	🔒 Secure	View