rexbo.dk

📜 Historical scan 2026-09-18 20:25:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rexbo.dk is a .dk domain served by 2 nameservers (amir.ns.cloudflare.com, dorthy.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.33.111 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mailstream-eu1.mxrecord.io, mailstream-central.mxrecord.mx and 3 more. 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 443ms

Nameserver	IP addresses	PTR	ASN / ISP
amir.ns.cloudflare.com	108.162.193.62 172.64.33.62 173.245.59.62 2606:4700:58::adf5:3b3e 2803:f800:50::6ca2:c13e 2a06:98c1:50::ac40:213e	amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com amir.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dorthy.ns.cloudflare.com	108.162.192.249 172.64.32.249 173.245.58.249 2606:4700:50::adf5:3af9 2803:f800:50::6ca2:c0f9 2a06:98c1:50::ac40:20f9	dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.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 123ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.18.33.111	300s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
172.64.154.145	300s	—	AS13335	Cloudflare, Inc.	172.64.144.0/20	—	—

📧 MX Records#

5 records 122ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	mailstream-eu1.mxrecord.io	172.65.245.214	—	AS13335 Cloudflare, Inc.
10	300s	mailstream-central.mxrecord.mx	172.65.64.78	—	AS13335 Cloudflare, Inc.
20	300s	mailstream-east.mxrecord.io	172.65.213.128	—	AS13335 Cloudflare, Inc.
20	300s	mailstream-west.mxrecord.io	172.65.220.210	—	AS13335 Cloudflare, Inc.
100	300s	mx0.webpack.hosteurope.de	80.237.138.5	mx0.webpack.hosteurope.de	AS34011 Host Europe GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.64.154.145
🔶 Autoconfig	172.64.154.145

🔷 AAAA Records (IPv6)#

2 records 140ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3105::ac40:9a91	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3100:0:0:0:0:0/44	—	—
2a06:98c1:3108::6812:216f	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3100:0:0:0:0:0/44	—	—

🔐 HTTPS Records#

1 records 111ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.18.33.111,172.64.154.145 ipv6hint=2a06:98c1:3105::ac40:9a91,2a06:98c1:3108::6812:216f

📝 TXT Records#

2 records 232ms

TXT Record
facebook-domain-verification=4czij94iq6z1sqodc1h5ubnx1cq34b
v=spf1 include:autodoc.dev include:mail.zendesk.com include:spf.mandrillapp.com include:_spf.newsautodoc.com ~all

✉️ SPF#

Policy	Record (rexbo.dk)
~all (soft fail)	v=spf1 include:autodoc.dev include:mail.zendesk.com include:spf.mandrillapp.com include:_spf.newsautodoc.com ~all

📨 DMARC#

Policy	Record (_dmarc.rexbo.dk)
p=quarantine	v=DMARC1;p=quarantine;pct=100;aspf=r;adkim=r;fo=1;ri=86400;rua=mailto:dmarc-report@rexbo.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 2026-10-16 00:57:07

www	104.18.33.111 172.64.154.145 2a06:98c1:3105::ac40:9a91 2a06:98c1:3108::6812:216f (AS13335) (address records, no CNAME)
www vs bare domain	Same network rexbo.dk: 104.18.33.111 172.64.154.145 2a06:98c1:3105::ac40:9a91 2a06:98c1:3108::6812:216f (AS13335) www.rexbo.dk: 104.18.33.111 172.64.154.145 2a06:98c1:3105::ac40:9a91 2a06:98c1:3108::6812:216f (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	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: 7/10 · policy: ~all

error include:_spf.newsautodoc.com has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rexbo.dk	1dkEdQNTXVd51gyrzjf--u8X4dcpGV8BZjqCMcQHsvM
TXT	_acme-challenge.rexbo.dk	Nohtz3jDx9qUXNcilYv9Ip1k0JAsXK28zJSGp43zqrQ
TXT	_acme-challenge.rexbo.dk	V6ERwG1NcUMpudVlgNmC72U4-S-IyqvJYPsgDoEbI-Q
TXT	_acme-challenge.rexbo.dk	nmNdJzp5zvF9NR4mW_d8Xsr7EbYAXvOdQ9x7fUbP7VA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

177ms

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	2415052087
Primary NS (MNAME)	amir.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

443ms

123ms

122ms

AAAA

140ms

TXT

232ms

CAA

100ms

HTTPS

111ms

TLSA

664ms

SOA

0ms

MTA-STS

126ms

DNSSEC

177ms

SRV

440ms

Total

2248ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 13:49:34	3488ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-03 09:32:03	897ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-01 09:24:55	888ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 00:34:25	778ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-25 02:13:39	983ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-23 20:47:46	1074ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-18 20:25:03 shown	2248ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-10 05:33:08	1815ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-02 14:22:00	1044ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 21:12:39	987ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-07 00:13:19	2926ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-19 23:23:33	17062ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-17 10:24:21	1884ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-13 21:26:35	1365ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-24 11:03:35	1085ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 23:53:10	1140ms	2 NS 2 A 5 MX	🔓 Insecure