katalist.dk

Records from scan: 2026-10-13 10:34:12 · 1020ms total · last checked 2026-10-17 18:59 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

katalist.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 22 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.16.36.105 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 138ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

4 records 115ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.16.36.105	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.16.42.105	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.19.240.93	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.19.241.93	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records#

5 records 127ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c03::1b	rd-in-f27.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.179.20.26 2404:6800:4000:1027::1b	ncboms-in-f26.1e100.net ncboms-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1b	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 189ms

TXT Record
v=spf1 include:_spf.google.com include:sendgrid.net include:spf.simply.com -all

✉️ SPF#

Policy	Record (katalist.dk)
-all (hard fail)	v=spf1 include:_spf.google.com include:sendgrid.net include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.katalist.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-13 10:34:13

www	104.16.36.105 104.16.42.105 104.19.240.93 104.19.241.93 (AS13335) (address records, no CNAME)
www vs bare domain	Same network katalist.dk: 104.16.36.105 104.16.42.105 104.19.240.93 104.19.241.93 (AS13335) www.katalist.dk: 104.16.36.105 104.16.42.105 104.19.240.93 104.19.241.93 (AS13335)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u52576315.wl066.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u52576315.wl066.sendgrid.net	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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

194ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

114ms

Field	Value
Serial	2026101200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-11 00:51:26

Field	Value
Registrar	Simply.com A/S
Registered	2021-01-22
Expires	2027-01-31 (105d)

📋 WHOIS#

⏱️ Lookup Timing#

138ms

115ms

127ms

AAAA

162ms

TXT

189ms

CAA

155ms

HTTPS

137ms

TLSA

215ms

SOA

114ms

MTA-STS

154ms

DNSSEC

194ms

SRV

159ms

Total

1020ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 10:34:12 shown	1020ms	3 NS 4 A 5 MX	🔒 Secure
2026-10-02 21:02:03	727ms	3 NS 4 A 5 MX	🔒 Secure
2026-09-30 20:55:34	685ms	3 NS 4 A 5 MX	🔒 Secure
2026-08-26 01:22:49	823ms	3 NS 4 A 5 MX	🔒 Secure
2026-07-25 23:34:26	17578ms	3 NS 4 A 5 MX	🔒 Secure
2026-06-20 12:20:59	3033ms	3 NS 4 A 5 MX	🔒 Secure
2026-06-17 12:08:40	1461ms	3 NS 4 A 5 MX	🔒 Secure