fullstackstartup.dk

📜 Historical scan 2026-09-06 23:19:42  ·  ← 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   149ms

🌍 A Records#

2 records   122ms
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   82ms

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig172.67.164.210

🔷 AAAA Records (IPv6)#

2 records   128ms

🔐 HTTPS Records#

1 records   94ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.10.239,172.67.164.210 ech=AEX+DQBBrQAgACAqjXiofe67l8Ye/0YKTchxRUbr8Xbbw4KsSBIuwq9ZWgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:aef,2606:4700:3036::ac43:a4d2

📝 TXT Records#

2 records   263ms
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#

181ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2413729359
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
149ms
A
122ms
MX
82ms
AAAA
128ms
TXT
263ms
CAA
82ms
HTTPS
94ms
TLSA
168ms
SOA
0ms
MTA-STS
117ms
DNSSEC
181ms
SRV
216ms
Total
1928ms

🕐 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 shown 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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