signtree.dk

📜 Historical scan 2026-09-23 19:48:01  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

signtree.dk is a .dk domain served by 2 nameservers (bonnie.ns.cloudflare.com, kurt.ns.cloudflare.com). It was registered on 6 August 2026 (WHOIS) and first appeared in the .dk zone on 7 August 2026. Its website address 104.21.31.223 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.kumarathurai.io. The zone is not DNSSEC-signed, 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   37ms
NameserverIP addressesPTRASN / ISP
bonnie.ns.cloudflare.com 108.162.192.76
172.64.32.76
173.245.58.76
2606:4700:50::adf5:3a4c
2803:f800:50::6ca2:c04c
2a06:98c1:50::ac40:204c		 bonnie.ns.cloudflare.com
bonnie.ns.cloudflare.com
bonnie.ns.cloudflare.com
bonnie.ns.cloudflare.com
bonnie.ns.cloudflare.com
bonnie.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
kurt.ns.cloudflare.com 108.162.193.193
172.64.33.193
173.245.59.193
2606:4700:58::adf5:3bc1
2803:f800:50::6ca2:c1c1
2a06:98c1:50::ac40:21c1		 kurt.ns.cloudflare.com
kurt.ns.cloudflare.com
kurt.ns.cloudflare.com
kurt.ns.cloudflare.com
kurt.ns.cloudflare.com
kurt.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   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.31.223 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.180.7 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   30ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mail.kumarathurai.io 187.124.182.191 srv1546719.hstgr.cloud AS47583 Hostinger International Limited

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovermail.kumarathurai.io → 187.124.182.191
🔶 Autoconfigmail.kumarathurai.io → 187.124.182.191

🔷 AAAA Records (IPv6)#

2 records   41ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:1fdf 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:b407 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   41ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.31.223,172.67.180.7 ech=AEX+DQBBjgAgACBrJpolLnTKU9cr4TLgrfo+RcOasSJKTLtpTQwYtTbgKAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:1fdf,2606:4700:3037::ac43:b407

🔌 SRV Records#

1 records   230ms
ServicePriorityWeightPortTarget
_imaps._tcp 0 1 993 mail.kumarathurai.io

📝 TXT Records#

1 records   221ms
TXT Record
v=spf1 mx -all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_dmarc.signtree.dk)
p=reject v=DMARC1; p=reject; rua=mailto:postmaster@signtree.dk

📬 MTA-STS#

192ms
CheckResult
Status⚠️ Invalid
TXT record (_mta-sts)✓ Found
HTTPS policy✗ Missing / invalid
Policy ID12627003727666723220
Policy MX—

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:postmaster@signtree.dk

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-18 11:17:47
www104.21.31.223 172.67.180.7 2606:4700:3033::6815:1fdf 2606:4700:3037::ac43:b407 (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#

4 records   68ms
Service / OwnerTypeCert association
SMTP _25._tcp.mail.kumarathurai.io DANE-TA · SPKI · SHA-256 762195C225586EE6C0237456E2107DC5…
SMTP _25._tcp.mail.kumarathurai.io DANE-TA · SPKI · SHA-256 B0292AE545978E0FBB98ABBD94C86160…
SMTP _25._tcp.mail.kumarathurai.io DANE-TA · SPKI · SHA-256 B3FB5D00E994CDDF2CC9A4EEA9F806BC…
SMTP _25._tcp.mail.kumarathurai.io DANE-EE · SPKI · SHA-256 A431167BD3B0606832B2B33B656049B7…

🔐 DNSSEC#

129ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2415252031
Primary NS (MNAME)bonnie.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-18 11:29:46
FieldValue
RegistrarSimply.com A/S
Registered2026-08-06
Expires2027-08-05 (288d)

🔗 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
ailearning.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
37ms
A
38ms
MX
30ms
AAAA
41ms
TXT
221ms
CAA
34ms
HTTPS
41ms
TLSA
68ms
SOA
0ms
MTA-STS
192ms
DNSSEC
129ms
SRV
230ms
Total
1348ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-18 11:17:47 1231ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-07 00:28:52 1133ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-05 22:28:50 4317ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-24 20:44:11 2570ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-23 19:48:01 shown 1348ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-14 21:16:43 3358ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-07 20:29:29 2958ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-02 15:54:03 5507ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-31 02:35:06 1605ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-27 12:26:25 679ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-25 11:11:04 483ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-07 09:08:24 899ms 2 NS 2 A 0 MX ❓ Unknown
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