holdbar-rr.dk

📜 Historical scan 2026-10-08 10:21:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holdbar-rr.dk is a .dk domain served by 2 nameservers (crystal.ns.cloudflare.com, pablo.ns.cloudflare.com). It was registered on 16 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.93.130 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by holdbarrr-dk01i.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 66ms

Nameserver	IP addresses	PTR	ASN / ISP
crystal.ns.cloudflare.com	108.162.194.202 162.159.38.202 172.64.34.202 2606:4700:50::a29f:26ca 2803:f800:50::6ca2:c2ca 2a06:98c1:50::ac40:22ca	crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
pablo.ns.cloudflare.com	108.162.193.220 172.64.33.220 173.245.59.220 2606:4700:58::adf5:3bdc 2803:f800:50::6ca2:c1dc 2a06:98c1:50::ac40:21dc	pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.ns.cloudflare.com pablo.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
104.21.93.130	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.210.44	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holdbarrr-dk01i.mail.protection.outlook.com	2a01:111:f403:c967:: 2a01:111:f403:c967::2 2a01:111:f403:c967::4 2a01:111:f403:c967::6 52.101.209.2 52.101.209.4 52.101.209.6 52.101.209.74	mail-cpcp307cu00400.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpap307cu00402.inbound.protection.outlook.com mail-cpap307cu00204.inbound.protection.outlook.com mail-cpcp307cu00206.inbound.protection.outlook.com mail-cpcp307cu00402.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

2 records 73ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:d22c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5d82	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 130ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.93.130,172.67.210.44 ech=AEX+DQBBlQAgACCzaOg6fjxqMcIHo/7SprJ8KoVedYK+t5GQzz6LtcIRXgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d22c,2606:4700:3036::6815:5d82

📝 TXT Records#

3 records 349ms

TXT Record
google-site-verification=GYfa6qO-dUlfnT89n4thPXdhvcqAeWNarPbjo3jr5fA
MS=ms71090701
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (holdbar-rr.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.holdbar-rr.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; adkim=r; aspf=r

📬 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 11:40:00

www	104.21.93.130 172.67.210.44 2606:4700:3033::ac43:d22c 2606:4700:3036::6815:5d82 (AS13335) (address records, no CNAME)
www vs bare domain	Same network holdbar-rr.dk: 104.21.93.130 172.67.210.44 2606:4700:3033::ac43:d22c 2606:4700:3036::6815:5d82 (AS13335) www.holdbar-rr.dk: 104.21.93.130 172.67.210.44 2606:4700:3033::ac43:d22c 2606:4700:3036::6815:5d82 (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-holdbarrr-dk01i._domainkey.holdbarrekrutteringradgivni.p-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-holdbarrr-dk01i._domainkey.holdbarrekrutteringradgivni.p-v1.dkim.mail.microsoft	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#

278ms

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

🏷️ SOA#

70ms

Field	Value
Serial	2416910133
Primary NS (MNAME)	crystal.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 07:29:35

Field	Value
Registrar	ONE.COM A/S
Registered	2026-03-16
Expires	2027-03-15 (146d)

📋 WHOIS#

⏱️ Lookup Timing#

66ms

146ms

63ms

AAAA

73ms

TXT

349ms

CAA

75ms

HTTPS

130ms

TLSA

955ms

SOA

70ms

MTA-STS

178ms

DNSSEC

278ms

SRV

182ms

Total

3117ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 11:40:00	2278ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-08 10:21:52 shown	3117ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 06:43:49	1359ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 13:35:17	2125ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 13:00:29	1108ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 23:47:41	1861ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 23:10:28	1501ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 03:25:50	1487ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-10 06:11:07	1737ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-04 01:21:57	2109ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 10:29:12	3262ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-19 16:25:31	3889ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 13:10:49	335ms	0 NS 0 A 0 MX	❓ Unknown