demder.dk

📜 Historical scan 2026-07-05 19:21:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

demder.dk is a .dk domain served by 2 nameservers (macy.ns.cloudflare.com, rodney.ns.cloudflare.com). It was registered on 26 October 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.45.5 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by demder-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 79ms

Nameserver	IP addresses	PTR	ASN / ISP
macy.ns.cloudflare.com	108.162.194.78 162.159.38.78 172.64.34.78 2606:4700:50::a29f:264e 2803:f800:50::6ca2:c24e 2a06:98c1:50::ac40:224e	macy.ns.cloudflare.com macy.ns.cloudflare.com macy.ns.cloudflare.com macy.ns.cloudflare.com macy.ns.cloudflare.com macy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rodney.ns.cloudflare.com	108.162.193.228 172.64.33.228 173.245.59.228 2606:4700:58::adf5:3be4 2803:f800:50::6ca2:c1e4 2a06:98c1:50::ac40:21e4	rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.ns.cloudflare.com rodney.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 84ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.45.5	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.207.11	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 96ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	demder-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca04::d 52.101.73.19 52.101.73.2 52.101.73.22 52.101.73.6	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 52.97.135.104
🔶 Autoconfig	104.21.45.5

🔷 AAAA Records (IPv6)#

2 records 77ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:cf0b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::6815:2d05	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 81ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.45.5,172.67.207.11 ech=AEX+DQBBzAAgACCwIdE/3bRX8GIFzKjy6EeLYFOh1/WKdy2Ez+1/WF2WDgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:cf0b,2606:4700:3032::6815:2d05

🔌 SRV Records#

2 records 8153ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.demder.dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 328ms

TXT Record
v=spf1 include:spf.protection.outlook.com ip4:46.32.37.253 -all

✉️ SPF#

Policy	Record (demder.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:46.32.37.253 -all

📨 DMARC#

Policy	Record (_dmarc.demder.dk)
p=reject	v=DMARC1; p=reject;rua=mailto:gc+rua@gc-srv.dk;fo=1;

📬 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 2026-10-10 09:40:11

www	104.21.45.5 172.67.207.11 2606:4700:3030::ac43:cf0b 2606:4700:3032::6815:2d05 (AS13335) (address records, no CNAME)
www vs bare domain	Same network demder.dk: 104.21.45.5 172.67.207.11 2606:4700:3030::ac43:cf0b 2606:4700:3032::6815:2d05 (AS13335) www.demder.dk: 104.21.45.5 172.67.207.11 2606:4700:3030::ac43:cf0b 2606:4700:3032::6815:2d05 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-demder-dk._domainkey.gcsrvtenant.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-demder-dk._domainkey.gcsrvtenant.onmicrosoft.com	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#

229ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2408731791
Primary NS (MNAME)	macy.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 09:56:05

Field	Value
Registrar	Simply.com A/S
Registered	2007-10-26
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

79ms

84ms

96ms

AAAA

77ms

TXT

328ms

CAA

147ms

HTTPS

81ms

TLSA

253ms

SOA

0ms

MTA-STS

111ms

DNSSEC

229ms

SRV

8153ms

Total

11327ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 09:40:11	3748ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-30 11:08:25	1093ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-21 09:27:32	1283ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-15 14:50:50	1991ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-08 02:49:03	2527ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-23 02:04:09	2054ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-31 07:18:23	1751ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-23 15:11:44	11523ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-05 19:21:00 shown	11327ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-23 02:50:21	1374ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 01:48:36	634ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 01:41:02	2041ms	2 NS 2 A 1 MX	🔒 Secure