isw.dk

Records from scan: 2026-07-02 13:54:40  ·  827ms total  ·  last checked 2026-10-16 17:44 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

isw.dk is a .dk domain served by 4 nameservers (ns1.dotserv.com, ns1.dotserv.net, ns2.dotserv.com and 1 more). It was registered on 18 December 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.10 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by ispc0.dotserv.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records   40ms
NameserverIP addressesPTRASN / ISP
ns1.dotserv.com 178.20.218.61
2a01:7cc0:101:ffff::51		 ns1.dotserv.com
ns1.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns1.dotserv.net 178.20.217.29
2a01:7cc0:101:ffff::52		 ns1.dotserv.net
ns2.dotserv.com		 AS21060 Atea A/S
AS21060 Atea A/S
ns2.dotserv.com 193.180.214.21 ns2.dotserv.com AS44803 Webdock.io ApS
ns2.dotserv.net 162.19.249.51
2001:41d0:701:1100::c89e		 ns2.dotserv.net
ns2.dotserv.net		 AS16276 OVH SAS
AS16276 OVH SAS

🌍 A Records#

1 records   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.20.216.10 3600s ispc0.dotserv.com AS21060 Atea A/S 178.20.216.0/23 🇩🇰 Denmark —

📧 MX Records#

1 records   54ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s ispc0.dotserv.com 178.20.216.10 ispc0.dotserv.com AS21060 Atea A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovermail.isw.dk → 178.20.216.10
🔶 Autoconfig178.20.216.10

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   185ms
TXT Record
v=spf1 include:_spf.dotserv.com -all

✉️ SPF#

PolicyRecord (isw.dk)
-all (hard fail) v=spf1 include:_spf.dotserv.com -all

📨 DMARC#

PolicyRecord (_dmarc.isw.dk)
p=reject v=DMARC1; p=reject;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

2 records   42ms
FlagsTagValue
0 issue comodoca.com
0 issue letsencrypt.org

🧩 Web & zone#

checked 2026-10-09 05:42:09
www178.20.216.10 (AS21060) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 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#

114ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

53ms
FieldValue
Serial1281015720
Primary NS (MNAME)ns1.dotserv.com
Responsible (RNAME)hostmaster@dotserv.com
Refresh14400s
Retry7200s
Expire1209600s
Minimum (neg-cache TTL)900s

📋 Registration#

WHOIS fetched 2026-10-14 09:39:23
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2000-12-18
Expires2026-12-31 (74d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
artware.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
40ms
A
42ms
MX
54ms
AAAA
44ms
TXT
185ms
CAA
42ms
HTTPS
62ms
TLSA
141ms
SOA
53ms
MTA-STS
84ms
DNSSEC
114ms
SRV
91ms
Total
827ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-07-02 13:54:40 shown 827ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-25 16:47:52 1742ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-20 04:06:51 512ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-19 23:12:23 1683ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-19 13:09:56 3184ms 4 NS 1 A 1 MX 🔓 Insecure
2026-06-18 02:48:56 1275ms 4 NS 1 A 1 MX 🔓 Insecure
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