it-mester.dk

Records from scan: 2026-10-13 23:23:51  ·  1370ms total  ·  last checked 2026-10-17 04:41 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

it-mester.dk is a .dk domain served by 2 nameservers (jihoon.ns.cloudflare.com, june.ns.cloudflare.com). It was registered on 11 April 2005 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.76.94 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by itmester-dk0e.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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#

2 records   30ms
NameserverIP addressesPTRASN / ISP
jihoon.ns.cloudflare.com 108.162.195.233
162.159.44.233
172.64.35.233
2606:4700:58::a29f:2ce9
2803:f800:50::6ca2:c3e9
2a06:98c1:50::ac40:23e9		 jihoon.ns.cloudflare.com
jihoon.ns.cloudflare.com
jihoon.ns.cloudflare.com
jihoon.ns.cloudflare.com
jihoon.ns.cloudflare.com
jihoon.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
june.ns.cloudflare.com 108.162.192.176
172.64.32.176
173.245.58.176
2606:4700:50::adf5:3ab0
2803:f800:50::6ca2:c0b0
2a06:98c1:50::ac40:20b0		 june.ns.cloudflare.com
june.ns.cloudflare.com
june.ns.cloudflare.com
june.ns.cloudflare.com
june.ns.cloudflare.com
june.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   42ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.76.94 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.192.110 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   31ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s itmester-dk0e.mail.protection.outlook.com 2a01:111:f403:ca09::20
2a01:111:f403:ca09::24
2a01:111:f403:ca21::c
2a01:111:f403:ca38::8
52.101.68.21
52.101.68.29
52.101.73.145
52.101.73.155		 mail-as8pr05cu00400.inbound.protection.outlook.com
mail-am6pr02cu00204.inbound.protection.outlook.com
mail-matpr04cu00204.inbound.protection.outlook.com
mail-wa4pr04cu00100.inbound.protection.outlook.com
mail-db4pr02cu00205.inbound.protection.outlook.com
mail-dbapr03cu00105.inbound.protection.outlook.com
mail-am6pr02cu00301.inbound.protection.outlook.com
mail-am7pr02cu00203.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

2 records   38ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::ac43:c06e 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::6815:4c5e 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   38ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.76.94,172.67.192.110 ech=AEX+DQBBbAAgACCMsxwRBgGrXNUdFFKfQJFyN/UEtcaydl45F49w+jphVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:c06e,2606:4700:3036::6815:4c5e

🔌 SRV Records#

1 records   106ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 5 10 5061 sipfed.online.lync.com

📝 TXT Records#

1 records   184ms
TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (it-mester.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

PolicyRecord (_dmarc.it-mester.dk)
p=reject v=DMARC1; p=reject; sp=reject; 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#

checked 2026-10-13 23:23:51
www104.21.76.94 172.67.192.110 2606:4700:3030::ac43:c06e 2606:4700:3036::6815:4c5e (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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

64ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

48ms
FieldValue
Serial2417397991
Primary NS (MNAME)jihoon.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-09-30 17:17:12
FieldValue
RegistrarNYGREEN IT ApS
Registered2005-04-11
Expires2027-04-30 (194d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
30ms
A
42ms
MX
31ms
AAAA
38ms
TXT
184ms
CAA
28ms
HTTPS
38ms
TLSA
890ms
SOA
48ms
MTA-STS
54ms
DNSSEC
64ms
SRV
106ms
Total
1370ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 23:23:51 shown 1370ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-01 16:36:26 1966ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 16:27:50 1403ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-27 16:09:44 1546ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-26 15:49:36 1476ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-20 11:03:57 1115ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 14:43:03 2016ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-04 02:12:13 1529ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-31 19:36:42 2143ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-11 01:39:21 1541ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-30 07:20:08 1488ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-17 23:27:13 1044ms 2 NS 2 A 1 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone