rssfeed.dk
📜 Historical scan 2026-08-21 17:36:56  ·  ← Latest scan
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   348ms
🌍 A Records2 records   382ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.8.218 300s AS13335 Cloudflare, Inc. 104.21.0.0/17
172.67.140.71 300s AS13335 Cloudflare, Inc. 172.67.128.0/17
📧 MX Records3 records   288ms
🔷 AAAA Records (IPv6)2 records   347ms
🔐 HTTPS Records1 records   386ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.8.218,172.67.140.71 ech=AEX+DQBBLQAgACCVijVnrdTiGn5EZuGMPclZj6RX3RXcaLkcIxSe2++TQgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:8c47,2606:4700:3037::6815:8da
📝 TXT Records1 records   872ms
TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all
✉️ SPF
PolicyRecord (rssfeed.dk)
~all (soft fail) v=spf1 include:_spf.mx.cloudflare.net ~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
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.rssfeed.dk HI6JPv6pTi4xzzXHYEUDwd0ehqOxgzKvzLWGfUQWs5E
TXT _acme-challenge.rssfeed.dk MkjcC5Il7zDeKCTJVSbna55VFrch_DQm5WMYig_-i38
🔗 TLSA / DANE9 records   434ms
Service / OwnerTypeCert association
SMTP _25._tcp.route1.mx.cloudflare.net DANE-TA · SPKI · SHA-256 59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net DANE-EE · SPKI · SHA-256 0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net DANE-EE · SPKI · SHA-256 9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net DANE-TA · SPKI · SHA-256 59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net DANE-EE · SPKI · SHA-256 0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net DANE-EE · SPKI · SHA-256 9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net DANE-EE · SPKI · SHA-256 0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net DANE-EE · SPKI · SHA-256 9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net DANE-TA · SPKI · SHA-256 59E738E674221702AF1EDB87C5200C1A…
🔐 DNSSEC649ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2412801388
Primary NS (MNAME)beth.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
348ms
A
382ms
MX
288ms
AAAA
347ms
TXT
872ms
CAA
316ms
HTTPS
386ms
TLSA
434ms
SOA
0ms
MTA-STS
571ms
DNSSEC
649ms
SRV
425ms
Total
12900ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-27 22:45:58 834ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-08-21 17:36:56 12900ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-07-17 22:12:03 8423ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-07-02 22:16:51 1146ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-06-24 20:32:29 1245ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-06-22 05:52:36 1847ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-06-19 23:09:57 4601ms 2 NS 2 A 3 MX 🔓 Insecure View
2026-06-18 08:32:13 23219ms 2 NS 2 A 3 MX 🔓 Insecure View
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