guldring.dk

📜 Historical scan 2026-08-20 20:30:07  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldring.dk is a .dk domain served by 2 nameservers (primary.ns.hostup.se, secondary.ns.hostup.se). It was registered on 28 November 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.67.123 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.guldring.dk. 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   334ms
NameserverIP addressesPTRASN / ISP
primary.ns.hostup.se 198.41.222.135
2400:cb00:2049:1::c629:de87		 cf-198-41-222-135.cloudflare.com
—		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
secondary.ns.hostup.se 162.159.8.163
2400:cb00:2049:1::a29f:8a3		 —
—		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   327ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.67.123 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.222.46 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   289ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.guldring.dk 185.113.11.10 lambda.hostup.se AS214640 Hostup AB

🔷 AAAA Records (IPv6)#

2 records   343ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3035::6815:437b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:de2e 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   363ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.67.123,172.67.222.46 ech=AEX+DQBB4wAgACAoulem06W6JHduWoXYsSI48mVBiWckGpgKNzjZBLwzaQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:437b,2606:4700:3037::ac43:de2e

📝 TXT Records#

1 records   947ms
TXT Record
v=spf1 mx include:spf.hostup.se ~all

✉️ SPF#

PolicyRecord (guldring.dk)
~all (soft fail) v=spf1 mx include:spf.hostup.se ~all

📨 DMARC#

PolicyRecord (_dmarc.guldring.dk)
p=none (monitor only) v=DMARC1; p=none;

📬 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 2026-10-13 15:24:30
www104.21.67.123 172.67.222.46 2606:4700:3035::6815:437b 2606:4700:3037::ac43:de2e (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#

1 found
SelectorCNAMEKey
default — 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: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.guldring.dk lgqjcZrlPueVSaEcmfGk0liKMvCxS3vVmNj-mmOHMQY
TXT _acme-challenge.guldring.dk WL1EDwAUmU4dFZTBdlG9i9GS1epPsX25Bu9KC_vUSNQ

🔗 TLSA / DANE#

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

🔐 DNSSEC#

673ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412716223
Primary NS (MNAME)primary.ns.hostup.se
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-10 07:23:17
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2017-11-28
Expires2026-11-30 (42d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
334ms
A
327ms
MX
289ms
AAAA
343ms
TXT
947ms
CAA
289ms
HTTPS
363ms
TLSA
588ms
SOA
0ms
MTA-STS
428ms
DNSSEC
673ms
SRV
390ms
Total
5054ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 15:24:30 2427ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-11 09:04:04 1767ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-10 06:55:46 1599ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-29 00:35:25 2693ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-27 00:11:01 707ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-23 22:31:27 708ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-19 08:02:15 1232ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-16 11:47:46 3531ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-11 10:41:19 1191ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-08 04:48:52 2103ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-31 17:49:19 645ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-30 10:34:49 1410ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-29 01:26:50 746ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 22:58:15 765ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 20:12:46 1213ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 07:14:16 968ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-25 02:07:12 8552ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-24 00:37:45 2854ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-22 20:48:26 1269ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-21 20:38:54 1482ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-20 20:30:07 shown 5054ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-19 19:08:34 4983ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-18 19:06:59 2912ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-16 15:18:06 16739ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-15 10:41:18 3400ms 2 NS 2 A 1 MX 🔓 Insecure
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