stadsing.dk

📜 Historical scan 2026-10-01 21:05:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

stadsing.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, yichun.ns.cloudflare.com). It was registered on 5 August 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.3.212 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by stadsing-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 146ms

Nameserver	IP addresses	PTR	ASN / ISP
cortney.ns.cloudflare.com	108.162.192.87 172.64.32.87 173.245.58.87 2606:4700:50::adf5:3a57 2803:f800:50::6ca2:c057 2a06:98c1:50::ac40:2057	cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com cortney.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
yichun.ns.cloudflare.com	108.162.193.248 172.64.33.248 173.245.59.248 2606:4700:58::adf5:3bf8 2803:f800:50::6ca2:c1f8 2a06:98c1:50::ac40:21f8	yichun.ns.cloudflare.com yichun.ns.cloudflare.com yichun.ns.cloudflare.com yichun.ns.cloudflare.com yichun.ns.cloudflare.com yichun.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 146ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.3.212	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.53	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 193ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	stadsing-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca21::10 2a01:111:f403:ca38::8 2a01:111:f403:ca48::a 52.101.181.153 52.101.185.24 52.101.73.120 52.101.73.126	mail-db6pr03cu00105.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am8pr83cu00106.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

2 records 184ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:3d4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:8335	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 152ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.21.3.212,172.67.131.53 ech=AEX+DQBBIwAgACD2o9PTfXq9OElYDyJgULaT2jdBL9rteYT7YXGImaB7dAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3d4,2606:4700:3035::ac43:8335

📝 TXT Records#

6 records 534ms

TXT Record
google-site-verification=lVZsS2YH2pRU0yCgjH3Ardh1omsV9sASZuKq9ksJ6Qo
IBecsDY8RUFeDg3y5lqESR/GUC9bYp4oKDe1Mhq4FlI=
include:_spf.consignor.com
MS=3D68BF884290256F7CE98A06E598E6173E877A74
MS=ms46810827
v=spf1 ip4:152.115.130.220 ip4:152.115.130.221 ip4:152.115.130.222 a:servers.mcsv.net include:sendgrid.net include:spf.truelink.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (stadsing.dk)
-all (hard fail)	v=spf1 ip4:152.115.130.220 ip4:152.115.130.221 ip4:152.115.130.222 a:servers.mcsv.net include:sendgrid.net include:spf.truelink.dk include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.stadsing.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email,mailto:it@stadsing.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 2026-10-19 22:48:24

www	104.21.3.212 172.67.131.53 2606:4700:3031::6815:3d4 2606:4700:3035::ac43:8335 (AS13335) (address records, no CNAME)
www vs bare domain	Same network stadsing.dk: 104.21.3.212 172.67.131.53 2606:4700:3031::6815:3d4 2606:4700:3035::ac43:8335 (AS13335) www.stadsing.dk: 104.21.3.212 172.67.131.53 2606:4700:3031::6815:3d4 2606:4700:3035::ac43:8335 (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#

4 found

Selector	CNAME	Key
s1	s1.domainkey.u19439022.wl023.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u19439022.wl023.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-stadsing-dk._domainkey.optigroup.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-stadsing-dk._domainkey.optigroup.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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

437ms

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

🏷️ SOA#

107ms

Field	Value
Serial	2416334721
Primary NS (MNAME)	cortney.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 23:15:02

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	1997-08-05
Expires	2027-09-30 (343d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
optigroup.dk	CSC Digital Brand Service, Inc
procurator.dk	CSC Digital Brand Service, Inc

📋 WHOIS#

⏱️ Lookup Timing#

146ms

193ms

AAAA

184ms

TXT

534ms

CAA

153ms

HTTPS

152ms

TLSA

991ms

SOA

107ms

MTA-STS

226ms

DNSSEC

437ms

SRV

246ms

Total

3024ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-19 22:48:24	2606ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-03 21:11:15	1918ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 21:05:10 shown	3024ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 20:40:06	1145ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 09:35:08	811ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 20:08:44	1119ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 19:43:50	1475ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 17:24:59	1423ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-19 12:18:37	1469ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-12 09:19:47	1521ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-06 14:58:15	1648ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 16:15:37	2351ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 02:50:29	743ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-16 16:44:00	1654ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-04 00:30:15	3263ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-24 01:00:00	1283ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-22 23:51:24	9538ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-30 15:24:20	1183ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 01:21:07	1673ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 23:43:45	1154ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 13:52:01	2825ms	2 NS 2 A 1 MX	🔓 Insecure