semenco.dk

📜 Historical scan 2026-06-28 14:25:47  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

semenco.dk is a .dk domain served by 2 nameservers (kayleigh.ns.cloudflare.com, ray.ns.cloudflare.com). It was registered on 21 November 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.24.138 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by semenco-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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   278ms

🌍 A Records#

2 records   317ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.24.138 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.218.247 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   553ms

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

2 records   274ms

🔐 HTTPS Records#

1 records   297ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.24.138,172.67.218.247 ech=AEX+DQBB2wAgACCR1ng244+qZpijAnehRXXIINh2lDVBDEcetfCY3xEyQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:188a,2606:4700:3035::ac43:daf7

🔌 SRV Records#

1 records   405ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com

📝 TXT Records#

3 records   555ms
TXT Record
i315j9+k//GJ7NaD7oxa6SSTW2Vxa6OoQZnnsUtMlngjk3l3ZIEAYzXkkVPApRBjFw9sV0p3zVOKpxlUQzDx0A==
MS=ms99970427
v=spf1 include:mailgun.org include:spf.protection.outlook.com ~all

✉️ SPF#

PolicyRecord (semenco.dk)
~all (soft fail) v=spf1 include:mailgun.org include:spf.protection.outlook.com ~all

📨 DMARC#

PolicyRecord (_dmarc.semenco.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

📬 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 2026-10-20 08:02:10
www104.21.24.138 172.67.218.247 2606:4700:3032::6815:188a 2606:4700:3035::ac43:daf7 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found
SelectorCNAMEKey
selector1 selector1-semenco-dk._domainkey.lindholding.onmicrosoft.com RSA · ~2048 bit
selector2 selector2-semenco-dk._domainkey.lindholding.onmicrosoft.com 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: 6/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

525ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

300ms
FieldValue
Serial2407257279
Primary NS (MNAME)kayleigh.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-20 08:40:51
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2003-11-21
Expires2031-07-31 (1744d)

🔗 Same registrant#

17 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
278ms
A
317ms
MX
553ms
AAAA
274ms
TXT
555ms
CAA
210ms
HTTPS
297ms
TLSA
1006ms
SOA
300ms
MTA-STS
323ms
DNSSEC
525ms
SRV
405ms
Total
6806ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-20 08:02:09 2117ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-17 05:24:31 2765ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-30 11:12:12 911ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-29 23:44:35 1017ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-27 23:12:00 1039ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-24 06:08:05 1302ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-03 16:13:31 1222ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-29 21:01:22 2780ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-26 11:04:09 1899ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-06 23:58:59 2347ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-12 16:52:55 10910ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-06 14:33:36 4436ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-28 14:25:47 shown 6806ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-22 01:08:47 1043ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 12:06:57 4880ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-17 13:15:12 1430ms 2 NS 2 A 1 MX 🔒 Secure
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