alcon.dk

📜 Historical scan 2026-08-20 03:02:49  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

alcon.dk is a .dk domain served by 4 nameservers (ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and 1 more). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.0.244 is hosted by Cloudflare, Inc. (AS13335). 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   53ms
NameserverIP addressesPTRASN / ISP
ha1.markmonitor.zone 192.174.68.5
2001:67c:1bc::5		 ha1.markmonitor.zone
ha1.markmonitor.zone		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ha2.markmonitor.zone 162.219.54.170
2620:10a:80eb::6b		 ha2.markmonitor.zone
ha2.markmonitor.zone		 AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
ha3.markmonitor.zone 176.97.158.5
2001:67c:10b8::5		 ha3.markmonitor.zone
ha3.markmonitor.zone		 AS207021 ipcom GmbH
AS1921 ipcom GmbH
ha4.markmonitor.zone 162.219.55.170
2620:10a:80ec::6b		 ha4.markmonitor.zone
ha4.markmonitor.zone		 AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I
AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I

🌍 A Records#

2 records   64ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.18.0.244 300s — AS13335 Cloudflare, Inc. 104.16.0.0/14 — —
104.18.1.244 300s — AS13335 Cloudflare, Inc. 104.16.0.0/14 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   350ms
TXT Record
8e36e5a410774de2ba6266aa7aeba911
v=spf1 -all

✉️ SPF#

PolicyRecord (alcon.dk)
-all (hard fail) v=spf1 -all

📨 DMARC#

PolicyRecord (_dmarc.alcon.dk)
p=reject v=DMARC1; p=reject; rua=mailto:f762a5e1e929449@rep.dmarcanalyzer.com; ruf=mailto:f762a5e1e929449@for.dmarcanalyzer.com; fo=1;

📬 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 2026-10-07 16:24:11
www CNAMEwww.alcon.dk.cdn.cloudflare.net (all on cloudflare.net)
www vs bare domainSame network
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9091ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2026081801
Primary NS (MNAME)ha1.markmonitor.zone
Responsible (RNAME)hostmaster@markmonitor.com
Refresh3600s
Retry600s
Expire604800s
Minimum (neg-cache TTL)172800s

📋 Registration#

WHOIS fetched 2026-10-07 16:45:56
FieldValue
RegistrarMarkMonitor Inc.
Registered1998-02-16
Expires2027-03-31 (165d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
53ms
A
64ms
MX
78ms
AAAA
46ms
TXT
350ms
CAA
73ms
HTTPS
64ms
TLSA
96ms
SOA
0ms
MTA-STS
92ms
DNSSEC
9091ms
SRV
118ms
Total
9956ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 16:24:11 2268ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-30 12:53:19 784ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-25 07:13:08 2357ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-20 03:02:49 shown 9956ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-30 02:04:52 766ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-25 06:19:07 999ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-23 19:06:39 1145ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 12:24:54 2635ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-16 12:39:15 461ms 4 NS 2 A 0 MX 🔓 Insecure
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