fullstackstartup.dk

📜 Historical scan 2026-09-17 12:13:54  ·  ← 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   38ms

🌍 A Records#

2 records   41ms
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   43ms

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig104.21.10.239

🔷 AAAA Records (IPv6)#

2 records   42ms

🔐 HTTPS Records#

1 records   38ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.10.239,172.67.164.210 ech=AEX+DQBBhgAgACDm3tjxdtW+I7Rrx54zypSLOPGyp6b4vUJZNGc8GXNJNgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:aef,2606:4700:3036::ac43:a4d2

📝 TXT Records#

2 records   172ms
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#

114ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2415037974
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 (192d)

🔗 Same registrant#

34 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
38ms
A
41ms
MX
43ms
AAAA
42ms
TXT
172ms
CAA
37ms
HTTPS
38ms
TLSA
994ms
SOA
0ms
MTA-STS
55ms
DNSSEC
114ms
SRV
96ms
Total
1771ms

🕐 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 shown 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 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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