rdg.dk

📜 Historical scan 2026-09-24 10:55:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rdg.dk is a .dk domain served by 2 nameservers (dell.ns.cloudflare.com, keaton.ns.cloudflare.com). It was registered on 15 October 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.62.201 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by rdg-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
dell.ns.cloudflare.com	108.162.192.94 172.64.32.94 173.245.58.94 2606:4700:50::adf5:3a5e 2803:f800:50::6ca2:c05e 2a06:98c1:50::ac40:205e	dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com dell.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
keaton.ns.cloudflare.com	108.162.195.181 162.159.44.181 172.64.35.181 2606:4700:58::a29f:2cb5 2803:f800:50::6ca2:c3b5 2a06:98c1:50::ac40:23b5	keaton.ns.cloudflare.com keaton.ns.cloudflare.com keaton.ns.cloudflare.com keaton.ns.cloudflare.com keaton.ns.cloudflare.com keaton.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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.62.201	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.138.197	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	rdg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::26 2a01:111:f403:ca38::8 2a01:111:f403:ca48::a 52.101.103.137 52.101.209.31 52.101.73.126 52.101.91.162	mail-db7pr03cu00507.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-matpr04cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:3ec9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:8ac5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 33ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.62.201,172.67.138.197 ech=AEX+DQBB1wAgACB5YpiLydqVjG5oFyjO7igHFm4w0+Q0sIUHVk0b32ydLgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:3ec9,2606:4700:3035::ac43:8ac5

🔌 SRV Records#

1 records 59ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

12 records 178ms

TXT Record
_globalsign-domain-verification=I8qXlOAY_YIZO6VwrbIhstSHWDW-cWy0QphctjydfW
anthropic-domain-verification-5b4ev8=SWXST7ReUo1eQKl6wtPskIJ8y
apple-domain-verification=F1wptAY3AzwgmCox
autodesk-domain-verification=QlGjmyLcgslFqfIda-gT
dropbox-domain-verification=m2tdeqw6wan8
google-site-verification=dxCGmHIRvzkH-8SsZNKpLls7BEoADjEXqxH930EsEBI
google-site-verification=EW-Vdx6sbu6UGr2q3lk9wskh3oSAkPL8551VF87ritA
hibp-verify=dweb_igw6nl8gcatyvvw3n3cjwpsu
MS=ms81720613
openai-domain-verification=dv-sHXLDeMHssOzJIqjZ7oAxurU
s5+bCLFLF8mJJTJOtVKUsGppBFcIGFqcOSodGpyer8WSer/CcgqStXWAVo2err/xJzrGVFKWIs9RssdKTPJqUA==
v=spf1 include:spf.protection.outlook.com include:_spf.anpdm.com include:mail.zendesk.com include:konformit.com include:spf.mailanyone.net include:_spf.presscloud.com include:_spf.easycruit.com a:mail.edisoft.no ip4:212.130.93.25 ip4:212.130.93.16 ip4:91.201.169.184 -all

✉️ SPF#

Policy	Record (rdg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.anpdm.com include:mail.zendesk.com include:konformit.com include:spf.mailanyone.net include:_spf.presscloud.com include:_spf.easycruit.com a:mail.edisoft.no ip4:212.130.93.25 ip4:212.130.93.16 ip4:91.201.169.184 -all

📨 DMARC#

Policy	Record (_dmarc.rdg.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:it-admin@rdg.dk; ruf=mailto:it-admin@rdg.dk; sp=reject;

📬 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 2026-10-09 10:36:18

www	104.21.62.201 172.67.138.197 2606:4700:3032::6815:3ec9 2606:4700:3035::ac43:8ac5 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rdg.dk: 104.21.62.201 172.67.138.197 2606:4700:3032::6815:3ec9 2606:4700:3035::ac43:8ac5 (AS13335) www.rdg.dk: 104.21.62.201 172.67.138.197 2606:4700:3032::6815:3ec9 2606:4700:3035::ac43:8ac5 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector2	selector2-rdg-dk._domainkey.rosendahldesigngroup.onmicrosoft.com	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: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rdg.dk	R71d7jiz0oQGwOmAjnot9xR-Vrph62xtTBwaTuq2GJg
TXT	_acme-challenge.rdg.dk	WJ4zLoDBl_mC0ptAUVJoO_UfVgpz6FztqKRj1GwP_XI

🔗 TLSA / DANE#

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

🔐 DNSSEC#

113ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2415725384
Primary NS (MNAME)	dell.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 11:08:20

Field	Value
Registrar	ONE.COM A/S
Registered	1997-10-15
Expires	2028-12-31 (804d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

42ms

36ms

AAAA

40ms

TXT

178ms

CAA

38ms

HTTPS

33ms

TLSA

594ms

SOA

0ms

MTA-STS

51ms

DNSSEC

113ms

SRV

59ms

Total

1843ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:36:18	1243ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-08 01:56:43	1102ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 11:54:38	668ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 11:51:18	1054ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 11:13:21	1085ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 10:55:47 shown	1843ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 10:43:20	970ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 22:40:53	885ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 10:56:50	774ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 03:51:44	692ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 21:26:18	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 18:26:59	989ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 04:19:55	1257ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 00:16:52	971ms	2 NS 1 A 1 MX	🔒 Secure