fullstackstartup.dk

📜 Historical scan 2026-08-09 10:38:01  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fullstackstartup.dk is a .dk domain served by 2 nameservers (alberto.ns.cloudflare.com, dorthy.ns.cloudflare.com). It was registered on 6 April 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.10.239 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by fullstackstartup-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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

🌍 A Records#

2 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.10.239 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.164.210 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   41ms

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig104.21.10.239

🔷 AAAA Records (IPv6)#

2 records   43ms

🔐 HTTPS Records#

1 records   39ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.10.239,172.67.164.210 ech=AEX+DQBBMAAgACDwjkqU0ajz0dg9xKPeuuoiYveknvO1e4UMUsz2j6USXQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:aef,2606:4700:3036::ac43:a4d2

📝 TXT Records#

2 records   218ms
TXT Record
MS=ms96846048
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 11:29:15
www104.21.10.239 172.67.164.210 2606:4700:3031::6815:aef 2606:4700:3036::ac43:a4d2 (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 · ~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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

72ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2411655760
Primary NS (MNAME)alberto.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-12 00:25:32
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2020-04-06
Expires2027-04-30 (193d)

🔗 Same registrant#

33 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
37ms
A
38ms
MX
41ms
AAAA
43ms
TXT
218ms
CAA
50ms
HTTPS
39ms
TLSA
318ms
SOA
0ms
MTA-STS
63ms
DNSSEC
72ms
SRV
76ms
Total
1758ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 09:07:04 748ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-26 05:56:17 1998ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-24 05:04:53 1377ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-17 12:13:54 1771ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-06 23:19:42 1928ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-28 12:09:19 2575ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-27 11:45:44 1440ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-09 10:38:01 shown 1758ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-22 03:09:06 4331ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-20 00:49:35 2428ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-16 18:08:21 1788ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-25 22:55:25 1078ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-21 09:26:15 1658ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-17 10:30:26 3169ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-17 10:27:17 2569ms 2 NS 2 A 1 MX 🔒 Secure
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