nsf-byg.dk

📜 Historical scan 2026-06-17 12:16:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nsf-byg.dk is a .dk domain served by 2 nameservers (marjory.ns.cloudflare.com, marty.ns.cloudflare.com). It was registered on 23 June 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 100.24.208.97 is hosted by Amazon.com, Inc. (AS14618) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 30ms

Nameserver	IP addresses	PTR	ASN / ISP
marjory.ns.cloudflare.com	108.162.192.193 172.64.32.193 173.245.58.193 2606:4700:50::adf5:3ac1 2803:f800:50::6ca2:c0c1 2a06:98c1:50::ac40:20c1	marjory.ns.cloudflare.com marjory.ns.cloudflare.com marjory.ns.cloudflare.com marjory.ns.cloudflare.com marjory.ns.cloudflare.com marjory.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marty.ns.cloudflare.com	108.162.193.204 172.64.33.204 173.245.59.204 2606:4700:58::adf5:3bcc 2803:f800:50::6ca2:c1cc 2a06:98c1:50::ac40:21cc	marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
100.24.208.97	—	staticip2.multiscreensite.com	AS14618	Amazon.com, Inc.	100.24.0.0/13	🇺🇸 United States	Ashburn
35.172.94.1	—	staticip.multiscreensite.com	AS14618	Amazon.com, Inc.	35.168.0.0/13	🇺🇸 United States	Ashburn

📧 MX Records#

5 records 26ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 74.125.205.27	li-in-x1b.1e100.net li-in-f27.1e100.net le-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	alt3.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	alt4.aspmx.l.google.com	173.194.43.27 2607:f8b0:400e:c1e::1b	yudlsqd-in-f27.1e100.net yudlsqd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 152ms

TXT Record
google-site-verification=giZ0GWPZWh1-SpvKC7r0pOU5AdVD8ghEcl0tm4bGB_M
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (nsf-byg.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.nsf-byg.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:postmaster@nsf-byg.dk

📬 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 2026-10-14 13:21:59

www	104.21.62.213 172.67.139.88 2606:4700:3031::6815:3ed5 2606:4700:3037::ac43:8b58 (AS13335) (address records, no CNAME)
www vs bare domain	Same network nsf-byg.dk: 104.21.62.213 172.67.139.88 2606:4700:3031::6815:3ed5 2606:4700:3037::ac43:8b58 (AS13335) www.nsf-byg.dk: 104.21.62.213 172.67.139.88 2606:4700:3031::6815:3ed5 2606:4700:3037::ac43:8b58 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

122ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

27ms

Field	Value
Serial	2407058569
Primary NS (MNAME)	marjory.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 03:58:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-06-23
Expires	2027-06-30 (252d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

48ms

26ms

AAAA

31ms

TXT

152ms

CAA

31ms

HTTPS

27ms

TLSA

118ms

SOA

27ms

MTA-STS

34ms

DNSSEC

122ms

SRV

0ms

Total

3340ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 13:21:59	3173ms	2 NS 2 A 5 MX	🔒 Secure
2026-10-11 03:50:53	5206ms	2 NS 2 A 5 MX	🔒 Secure
2026-10-02 21:14:47	924ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-30 21:09:15	507ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-23 12:53:45	756ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-21 15:00:30	1791ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-09 16:41:59	1137ms	2 NS 2 A 5 MX	🔒 Secure
2026-09-06 21:53:18	1964ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-30 18:33:30	3186ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-28 02:32:16	691ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-13 11:16:01	5085ms	2 NS 2 A 5 MX	🔒 Secure
2026-08-07 08:56:50	2825ms	2 NS 2 A 5 MX	🔒 Secure
2026-07-10 17:40:19	10661ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-24 22:32:52	977ms	2 NS 2 A 5 MX	🔒 Secure
2026-06-21 21:30:08	985ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 12:16:23 shown	3340ms	2 NS 2 A 5 MX	🔒 Secure