bybuskgruppen.dk

📜 Historical scan 2026-09-23 11:30:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bybuskgruppen.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was registered on 16 September 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.150.1.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.improvmx.com, mx2.improvmx.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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 70ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.vercel-dns.com	198.51.44.13 2620:4d:4000:6259:7:13:0:1	dns1.p13.nsone.net dns1.p13.nsone.net	AS62597 NSONE Inc AS62597 NSONE Inc
ns2.vercel-dns.com	198.51.45.13 2a00:edc0:6259:7:13::2	dns2.p13.nsone.net dns2.p13.nsone.net	AS62597 NSONE Inc AS62597 NSONE Inc

🌍 A Records#

2 records 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	1800s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—
216.150.16.129	1800s	—	AS16509	Amazon.com, Inc.	216.150.16.0/24	🇺🇸 United States	—

📧 MX Records#

2 records 68ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	60s	mx1.improvmx.com	13.37.195.136 15.236.236.160 2a05:d012:412:e201:88aa:e7b9:7a43:12d7 2a05:d012:412:e202:f36:2c1f:1a49:d38a 2a05:d012:412:e203:373a:f51a:4a85:1d25 35.181.18.45	ec2-13-37-195-136.eu-west-3.compute.amazonaws.com ec2-15-236-236-160.eu-west-3.compute.amazonaws.com — — — ec2-35-181-18-45.eu-west-3.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	60s	mx2.improvmx.com	13.36.107.63 13.36.222.39 15.236.61.92 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678 2a05:d012:412:e202:e81e:cc44:3b53:8a3d 2a05:d012:412:e203:7e33:3d9c:28d7:ee20	ec2-13-36-107-63.eu-west-3.compute.amazonaws.com ec2-13-36-222-39.eu-west-3.compute.amazonaws.com ec2-15-236-61-92.eu-west-3.compute.amazonaws.com — — —	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	216.150.1.193
🔶 Autoconfig	216.150.16.129

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 325ms

TXT Record
google-site-verification=dsIvAgKzq5YqFewkw_1s_CagsFbj53d0bpYLX1kAB_I
v=spf1 include:spf.improvmx.com ~all

✉️ SPF#

Policy	Record (bybuskgruppen.dk)
~all (soft fail)	v=spf1 include:spf.improvmx.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#

3 records 83ms

Flags	Tag	Value
0	issue	letsencrypt.org
0	issue	pki.goog
0	issue	sectigo.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 20:49:41

www	216.150.1.193 216.150.16.129 (AS16509) (address records, no CNAME)
www vs bare domain	Same network bybuskgruppen.dk: 216.150.1.193 216.150.1.65 (AS16509) www.bybuskgruppen.dk: 216.150.1.193 216.150.16.129 (AS16509)
Wildcard	Yes: any name under the zone resolves

🔎 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#

2059ms

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	1788507840
Primary NS (MNAME)	ns1.vercel-dns.com
Responsible (RNAME)	hostmaster@nsone.net
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-15 12:56:40

Field	Value
Registrar	Simply.com A/S
Registered	2024-09-16
Expires	2027-09-15 (323d)

🔗 Same registrant#

9 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
6ugerskurserforledige.dk	Simply.com A/S
6ugerskursusforledige.dk	Simply.com A/S
doorstep.dk	Simply.com A/S
findtandlaeger.dk	Simply.com A/S
jobrettedeuddannelser.dk	Simply.com A/S
jobrettet-uddannelse.dk	Simply.com A/S
kursersomledige.dk	Simply.com A/S
matthias-larsen.dk	Simply.com A/S
stu.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

70ms

48ms

68ms

AAAA

61ms

TXT

325ms

CAA

83ms

HTTPS

60ms

TLSA

98ms

SOA

0ms

MTA-STS

80ms

DNSSEC

2059ms

SRV

107ms

Total

4527ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 00:43:11	829ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-23 11:30:52 shown	4527ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-04 17:49:41	6962ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-30 17:07:27	606ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-26 12:23:19	723ms	2 NS 1 A 4 MX	🔒 Secure
2026-08-08 15:51:25	1208ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-20 14:41:57	9169ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-20 02:54:46	727ms	2 NS 1 A 4 MX	🔒 Secure
2026-06-16 18:05:03	918ms	2 NS 1 A 4 MX	🔒 Secure