rs21totalbyg.dk

Records from scan: 2026-10-04 15:03:35 · 2023ms total · last checked 2026-10-18 05:43 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rs21totalbyg.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 July 2026 (WHOIS) and first appeared in the .dk zone on 3 July 2026. Its website address 185.20.205.84 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 182ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.20.205.84	3600s	linux404.unoeuro.com	AS48854	team.blue Denmark A/S	185.20.204.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 92ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	600s	smtp.google.com	142.251.127.26 142.251.127.27 2a00:1450:4001:c21::1a 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	185.20.205.84
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 363ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records#

3 records 489ms

TXT Record
google-site-verification=sN5irKHvvSVVFSbFobsp0a7hGpNaYnDYZE8IKZvk9r8
google-site-verification=UOv9GOiwdJEtL3dRV725A1eJ8LKdUrmHKwLxcyT5w_A
v=spf1 include:spf.simply.com include:_spf.google.com -all

✉️ SPF#

Policy	Record (rs21totalbyg.dk)
-all (hard fail)	v=spf1 include:spf.simply.com include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.rs21totalbyg.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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#

checked 2026-10-09 22:27:33

www	185.20.205.84 (AS48854) (address records, no CNAME)
www vs bare domain	Same network rs21totalbyg.dk: 185.20.205.84 (AS48854) www.rs21totalbyg.dk: 185.20.205.84 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

465ms

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

🏷️ SOA#

59ms

Field	Value
Serial	2026100300
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-04 15:30:21

Field	Value
Registrar	Simply.com A/S
Registered	2026-07-02
Expires	2027-07-01 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

61ms

182ms

92ms

AAAA

151ms

TXT

489ms

CAA

344ms

HTTPS

56ms

TLSA

373ms

SOA

59ms

MTA-STS

362ms

DNSSEC

465ms

SRV

363ms

Total

2023ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 15:03:35 shown	2023ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 14:44:49	464ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-19 01:14:52	775ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-06 15:49:43	642ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-01 04:50:56	645ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-28 16:10:41	3324ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-18 20:19:40	1224ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-03 08:31:47	2254ms	3 NS 1 A 1 MX	🔒 Secure