cheng.dk

📜 Historical scan 2026-09-04 21:11:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cheng.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 27 September 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.205 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a 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#

2 records 45ms

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 Records#

1 records 36ms

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 Records#

5 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c01::1b	rc-in-f26.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 162ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-10 13:07:15

www	217.116.232.205 (AS47292) (address records, no CNAME)
www vs bare domain	Same network cheng.dk: 217.116.232.205 (AS47292) www.cheng.dk: 217.116.232.205 (AS47292)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

76ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081001
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 13:35:32

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-09-27
Expires	2027-09-26 (341d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

36ms

37ms

AAAA

38ms

TXT

162ms

CAA

57ms

HTTPS

40ms

TLSA

61ms

SOA

0ms

MTA-STS

48ms

DNSSEC

76ms

SRV

58ms

Total

621ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 13:07:15	972ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-11 22:13:34	947ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-04 21:11:33 shown	621ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-27 11:50:52	858ms	2 NS 1 A 5 MX	🔒 Secure
2026-08-10 14:06:39	17112ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-16 08:59:03	9432ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-13 12:38:01	5359ms	2 NS 1 A 5 MX	🔒 Secure
2026-07-12 01:37:56	1260ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-29 23:17:19	944ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-16 20:25:40	637ms	2 NS 1 A 5 MX	🔒 Secure