renthero.dk

📜 Historical scan 2026-07-22 19:50:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

renthero.dk is a .dk domain served by 2 nameservers (desiree.ns.cloudflare.com, sterling.ns.cloudflare.com). It was registered on 16 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.129 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by renthero-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 76ms

Nameserver	IP addresses	PTR	ASN / ISP
desiree.ns.cloudflare.com	108.162.194.13 162.159.38.13 172.64.34.13 2606:4700:50::a29f:260d 2803:f800:50::6ca2:c20d 2a06:98c1:50::ac40:220d	desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com desiree.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sterling.ns.cloudflare.com	108.162.195.143 162.159.44.143 172.64.35.143 2606:4700:58::a29f:2c8f 2803:f800:50::6ca2:c38f 2a06:98c1:50::ac40:238f	sterling.ns.cloudflare.com sterling.ns.cloudflare.com sterling.ns.cloudflare.com sterling.ns.cloudflare.com sterling.ns.cloudflare.com sterling.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 73ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.129	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.5	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 234ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	renthero-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::3 2a01:111:f403:ca09::4 2a01:111:f403:ca09::f 52.101.68.18 52.101.68.36 52.101.73.26 52.101.73.8	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.99.211.24
🔶 Autoconfig	104.21.29.129

🔷 AAAA Records (IPv6)#

2 records 241ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:1d81	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9505	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 76ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.129,172.67.149.5 ech=AEX+DQBBlAAgACDCQLEi6sjvK9JIDrkveDKawBQwt8HYvWamTc6sLou6OgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1d81,2606:4700:3036::ac43:9505

📝 TXT Records#

3 records 266ms

TXT Record
google-site-verification=WNw0daeNlD-ZlDCJ839fxe2csieMKsntmKz5UVgl1yc
MS=ms37583595
v=spf1 include:_spf.google.com include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (renthero.dk)
-all (hard fail)	v=spf1 include:_spf.google.com include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-18 13:23:02

www	104.21.29.129 172.67.149.5 2606:4700:3030::6815:1d81 2606:4700:3036::ac43:9505 (AS13335) (address records, no CNAME)
www vs bare domain	Same network renthero.dk: 104.21.29.129 172.67.149.5 2606:4700:3030::6815:1d81 2606:4700:3036::ac43:9505 (AS13335) www.renthero.dk: 104.21.29.129 172.67.149.5 2606:4700:3030::6815:1d81 2606:4700:3036::ac43:9505 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-renthero-dk._domainkey.rentherodk.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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

258ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2410198487
Primary NS (MNAME)	desiree.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 01:48:14

Field	Value
Registrar	Simply.com A/S
Registered	2019-04-16
Expires	2027-04-30 (189d)

🔗 Same registrant#

1 domain

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
mimeradvokater.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

76ms

73ms

234ms

AAAA

241ms

TXT

266ms

CAA

239ms

HTTPS

76ms

TLSA

8100ms

SOA

0ms

MTA-STS

61ms

DNSSEC

258ms

SRV

244ms

Total

17405ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 18:22:58	1484ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 17:19:06	1435ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 17:04:31	1829ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 16:21:48	988ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-13 14:47:35	1673ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-03 20:01:35	930ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 18:35:19	3032ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-15 20:27:53	4437ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-31 13:44:53	2955ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-22 19:50:04 shown	17405ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-04 05:08:44	2249ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-30 00:24:52	1004ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 14:40:07	2526ms	2 NS 2 A 1 MX	🔓 Insecure