grading.dk

📜 Historical scan 2026-06-17 10:00:44  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

grading.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 8 February 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.184.84.11 is hosted by PerfGrid (AS59795) in The Netherlands. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. 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   122ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   115ms
IPTTLPTRASNISP / OrgCIDRCountryCity
213.184.84.11 — nlsh06.shared-infra.net AS59795 PerfGrid 213.184.84.0/23 🇳🇱 The Netherlands —

📧 MX Records#

2 records   118ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.onlinemail.io 185.21.42.12 mx1.onlinemail.io AS48854 team.blue Denmark A/S
20 — mx2.onlinemail.io 46.36.208.16 mx2.onlinemail.io AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

1 records   115ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a09:3a00:4011::1 — — AS59795 PerfGrid 2a09:3a00:4000:0:0:0:0:0/40 🇳🇱 The Netherlands —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   361ms
TXT Record
brevo-code:e6760f9636740825cf6cd492236ad966
v=spf1 include:spf.onlinemail.io include:spf-record.net -all

✉️ SPF#

PolicyRecord (grading.dk)
-all (hard fail) v=spf1 include:spf.onlinemail.io include:spf-record.net -all

📨 DMARC#

PolicyRecord (_dmarc.grading.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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 2026-10-08 17:46:55
www213.184.84.11 2a09:3a00:4011::1 (AS59795) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found
SelectorCNAMEKey
default — RSA · ~1024 bit below 2048 bit
mail — 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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

211ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

123ms
FieldValue
Serial2025052702
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-10 17:22:40
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2021-02-08
Expires2027-02-28 (133d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
122ms
A
115ms
MX
118ms
AAAA
115ms
TXT
361ms
CAA
114ms
HTTPS
104ms
TLSA
150ms
SOA
123ms
MTA-STS
118ms
DNSSEC
211ms
SRV
0ms
Total
1117ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 16:51:48 488ms 2 NS 1 A 2 MX 🔒 Secure
2026-09-18 02:40:18 550ms 2 NS 1 A 2 MX 🔒 Secure
2026-09-03 16:58:01 590ms 2 NS 1 A 2 MX 🔒 Secure
2026-08-26 08:59:45 952ms 2 NS 1 A 2 MX 🔒 Secure
2026-08-25 13:05:57 718ms 2 NS 1 A 2 MX 🔒 Secure
2026-06-17 10:00:44 shown 1117ms 2 NS 1 A 2 MX 🔒 Secure
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