guldring.dk

📜 Historical scan 2026-08-21 20:38:54  ·  ← 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   139ms
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   100ms
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   156ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.guldring.dk 185.113.11.10 lambda.hostup.se AS214640 Hostup AB

🔷 AAAA Records (IPv6)#

2 records   110ms
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   110ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.67.123,172.67.222.46 ech=AEX+DQBB9AAgACD3ERJYIyHv89YHXNmqxmsBt/DtotScGXwetZzWWVbEAwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:437b,2606:4700:3037::ac43:de2e

📝 TXT Records#

1 records   306ms
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#

219ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412813940
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
139ms
A
100ms
MX
156ms
AAAA
110ms
TXT
306ms
CAA
154ms
HTTPS
110ms
TLSA
176ms
SOA
0ms
MTA-STS
122ms
DNSSEC
219ms
SRV
211ms
Total
1482ms

🕐 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 shown 1482ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-20 20:30:07 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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