cembas.dk

📜 Historical scan 2026-06-19 21:42:20  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cembas.dk is a .dk domain served by 4 nameservers (ns-1457.awsdns-54.org, ns-1585.awsdns-06.co.uk, ns-230.awsdns-28.com and 1 more). It was registered on 1 January 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 3.164.240.100 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, 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#

4 records   63ms
NameserverIP addressesPTRASN / ISP
ns-1457.awsdns-54.org 205.251.197.177
2600:9000:5305:b100::1		 ns-1457.awsdns-54.org
ns-1457.awsdns-54.org		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-1585.awsdns-06.co.uk 205.251.198.49
2600:9000:5306:3100::1		 ns-1585.awsdns-06.co.uk
ns-1585.awsdns-06.co.uk		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-230.awsdns-28.com 205.251.192.230
2600:9000:5300:e600::1		 ns-230.awsdns-28.com
ns-230.awsdns-28.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-803.awsdns-36.net 205.251.195.35
2600:9000:5303:2300::1		 ns-803.awsdns-36.net
ns-803.awsdns-36.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.

🌍 A Records#

4 records   57ms
IPTTLPTRASNISP / OrgCIDRCountryCity
3.164.240.100 60s server-3-164-240-100.arn53.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —
3.164.240.12 60s server-3-164-240-12.arn53.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —
3.164.240.34 60s server-3-164-240-34.arn53.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —
3.164.240.46 60s server-3-164-240-46.arn53.r.cloudfront.net AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States —

📧 MX Records#

5 records   70ms
PriorityTTLMail ServerIP addressesPTRASN
1 300s aspmx.l.google.com 173.194.220.26
2a00:1450:4010:c0f::1a
2a00:1450:4010:c0f::1a		 lk-in-f26.1e100.net
lt-in-x1a.1e100.net
lt-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
5 300s alt1.aspmx.l.google.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
5 300s alt2.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 300s alt3.aspmx.l.google.com 108.177.125.27
2404:6800:4008:c01::1a		 tp-in-f27.1e100.net
tp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 300s alt4.aspmx.l.google.com 108.177.125.27
2404:6800:4008:c01::1b		 tp-in-f27.1e100.net
tp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverwww.cembas.dk → 18.173.5.68
🔶 Autoconfigwww.cembas.dk → 18.173.5.69

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   342ms
TXT Record
google-site-verification=dG9HA-Gml8nru-cLTj5ZtC6SJie0VzAgJWOS3AagQdk
v=spf1 include:_spf.google.com ~all

✉️ SPF#

PolicyRecord (cembas.dk)
~all (soft fail) v=spf1 include:_spf.google.com ~all

📨 DMARC#

PolicyRecord (_dmarc.cembas.dk)
p=none (monitor only) v=DMARC1;p=none;fo=1

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

4 records   67ms
FlagsTagValue
0 issue amazon.com
0 issue amazonaws.com
0 issue amazontrust.com
0 issue awstrust.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 19:08:03
www65.9.106.19 65.9.106.67 65.9.106.70 65.9.106.98 (AS16509) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

✍️ DKIM keys#

1 found
SelectorCNAMEKey
google — RSA · ~1024 bit below 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: 1/10 · policy: ~all

No problems found

🔏 ACME Challenge#

TypeNameValue
CNAME _acme-challenge.cembas.dk www.cembas.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

131ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

67ms
FieldValue
Serial1
Primary NS (MNAME)ns-1457.awsdns-54.org
Responsible (RNAME)awsdns-hostmaster@amazon.com
Refresh7200s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-09 19:53:16
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2010-01-01
Expires2034-01-31 (2663d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
63ms
A
57ms
MX
70ms
AAAA
61ms
TXT
342ms
CAA
67ms
HTTPS
58ms
TLSA
2953ms
SOA
67ms
MTA-STS
58ms
DNSSEC
131ms
SRV
131ms
Total
4005ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 15:05:26 1055ms 4 NS 4 A 5 MX 🔓 Insecure
2026-09-25 06:44:25 12353ms 4 NS 4 A 5 MX 🔓 Insecure
2026-08-27 02:40:50 12926ms 4 NS 4 A 5 MX 🔓 Insecure
2026-08-26 01:03:06 4235ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-25 03:16:12 3517ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-23 02:12:01 1169ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-19 21:42:20 shown 4005ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 22:59:35 65535ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 20:09:05 3190ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 20:03:56 748ms 4 NS 4 A 5 MX 🔓 Insecure
2026-06-16 20:00:07 1047ms 4 NS 4 A 5 MX 🔓 Insecure
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