semler.dk

📜 Historical scan 2026-06-25 12:15:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

semler.dk is a .dk domain served by 4 nameservers (ns1-02.azure-dns.com, ns2-02.azure-dns.net, ns3-02.azure-dns.org and 1 more). It was registered on 13 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.19.191.28 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by semler-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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#

4 records 64ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-02.azure-dns.com	13.107.236.2 2603:1061:0:700::2	ns1-02.azure-dns.com ns1-02.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-02.azure-dns.net	150.171.21.2 2620:1ec:8ec:700::2	ns2-02.azure-dns.net ns2-02.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-02.azure-dns.org	204.14.183.2 2a01:111:4000:700::2	ns3-02.azure-dns.org ns3-02.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-02.azure-dns.info	208.84.5.2 2620:1ec:bda:700::2	ns4-02.azure-dns.info ns4-02.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records#

1 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.19.191.28	3600s	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records#

1 records 58ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	semler-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca09::3 52.101.68.32 52.101.73.16 52.101.73.30 52.101.73.8	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00306.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 115ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

15 records 407ms

TXT Record
_ndrwo4bhvvlszsfd1po30w4t3uuuwq7
_txfv2obzrweqgc3kp5n280y6ykmjnk8
0df4186f71376bdc
4a7b394236320d3bc23962ed06df231da3732e27bd5f9fc103
atlassian-domain-verification=zxBiUAgHWw1OwtRDfJS+u62UV+PaQX6yvhj+Ll0MGwhjosUNFj8H2gNb0VaYCxaE
blcf7r41gh1wbqcchn2vjzn3ps4l2wv5
docusign=c48b2d11-360b-4af5-beab-fdcf71198aad
docusign=fd452c6f-fba0-48bd-9bcb-17a10f2e8c3e
Dzfr8VwgFt4V2h1A6aA4U5-NnKKir9EE
google-site-verification=-_3B9iowR47JDAv6uiUbK8cv_j1BKepEFA7wY79XYMw
MS=67D5FBA1D8ACFF568A5090857CC1D5577893DDB5
MS=ms80432207
successfactors-site-verification=ZWJkZDI4YjlhOGZmN2Y4MTlhYzI4MzM0OWI5MWExNzU3NDFhOGYzYTA5ZWYwZmVkYTJmYjU3YjMyMTRmYjBiOQ==
v=spf1 a mx ip4:195.249.218.0/24 ip4:20.107.82.163/32 ip4:77.247.70.242/32 include:_spf.salesforce.com include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:mail.zendesk.com include:_spf-dc2.successfactors.com ~all
wpdxqdlwx2bf2cxxr1qz4z54ngx9bd4g

✉️ SPF#

Policy	Record (semler.dk)
~all (soft fail)	v=spf1 a mx ip4:195.249.218.0/24 ip4:20.107.82.163/32 ip4:77.247.70.242/32 include:_spf.salesforce.com include:spf.protection.outlook.com include:cust-spf.exacttarget.com include:mail.zendesk.com include:_spf-dc2.successfactors.com ~all

📨 DMARC#

Policy	Record (_dmarc.semler.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:tepx02da@ag.eu.dmarcadvisor.com; ruf=mailto:tepx02da@fr.eu.dmarcadvisor.com

📬 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 2026-10-10 22:25:35

www CNAME	dns.umbraco.io (all on umbraco.io) → 162.159.140.127 172.66.0.125 2606:4700:7::7d 2a06:98c1:58::7d (AS13335)
www vs bare domain	Same network semler.dk: 104.19.191.28 (AS13335) www.semler.dk: 162.159.140.127 172.66.0.125 2606:4700:7::7d 2a06:98c1:58::7d (AS13335)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u13913590.wl091.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u13913590.wl091.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-semler-dk._domainkey.semler.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: 8/10 · policy: ~all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

181ms

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

🏷️ SOA#

77ms

Field	Value
Serial	345
Primary NS (MNAME)	ns1-02.azure-dns.com
Responsible (RNAME)	dnsadmin@kmd.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	43200s

📋 Registration#

WHOIS fetched 2026-10-19 04:52:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-12-13
Expires	2026-12-31 (66d)

🔗 Same registrant#

570 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
911teknik.dk	Punktum dk A/S (direct)
a365-semler.dk	Punktum dk A/S (direct)
ac-esbjerg.dk	Punktum dk A/S (direct)
anderstherkildsen.dk	Punktum dk A/S (direct)
audi-a2.dk	Punktum dk A/S (direct)
audi-a3.dk	Punktum dk A/S (direct)
audi-a4.dk	Punktum dk A/S (direct)
audi-a6.dk	Punktum dk A/S (direct)
audi-aabenraa.dk	Punktum dk A/S (direct)
audi-bilerneshus.dk	Punktum dk A/S (direct)
audi-connect.dk	Punktum dk A/S (direct)
audi-danmark.dk	Punktum dk A/S (direct)
audi-detail.dk	Punktum dk A/S (direct)
audi-esbjerg.dk	Punktum dk A/S (direct)
audi-gladsaxe.dk	Punktum dk A/S (direct)
audi-grenaa.dk	Punktum dk A/S (direct)
audi-hillerod.dk	Punktum dk A/S (direct)
audi-hoejbjerg.dk	Abion AB
audi-holbaek.dk	Punktum dk A/S (direct)
audi-horsens.dk	Punktum dk A/S (direct)
audi-hso.dk	Punktum dk A/S (direct)
audi-insight.dk	Punktum dk A/S (direct)
audi-koege.dk	Punktum dk A/S (direct)
audi-koge.dk	Punktum dk A/S (direct)
audi-kolding.dk	Punktum dk A/S (direct)
audi-koreteknik.dk	Punktum dk A/S (direct)
audi-leasing.dk	Punktum dk A/S (direct)
audi-magazine.dk	Punktum dk A/S (direct)
audi-masters.dk	Punktum dk A/S (direct)
audi-odense.dk	Punktum dk A/S (direct)
audi-randers.dk	Punktum dk A/S (direct)
audi-sem.dk	Punktum dk A/S (direct)
audi-tt.dk	Punktum dk A/S (direct)
audi-vejle.dk	Punktum dk A/S (direct)
audi-viborg.dk	Punktum dk A/S (direct)
audi-vw-horsens.dk	Punktum dk A/S (direct)
audi.dk	Punktum dk A/S (direct)
audibonusclub.dk	Punktum dk A/S (direct)
audichallenge.dk	Punktum dk A/S (direct)
audiconect.dk	Punktum dk A/S (direct)
audiconnect.dk	Punktum dk A/S (direct)
audidanmark.dk	Punktum dk A/S (direct)
audifinans.dk	Punktum dk A/S (direct)
audiinsight.dk	Punktum dk A/S (direct)
audileasing.dk	Punktum dk A/S (direct)
audimagazine.dk	Punktum dk A/S (direct)
audimasters.dk	Punktum dk A/S (direct)
audimerchandise.dk	DANDOMAIN A/S
audionlineforum.dk	Punktum dk A/S (direct)
audireservedele.dk	Punktum dk A/S (direct)
audiselect.dk	Punktum dk A/S (direct)
audiservice-aalestrup.dk	Punktum dk A/S (direct)
audiservice-glostrup.dk	Abion AB
audiservice-ringsted.dk	Abion AB
audiservice-silkeborg.dk	Punktum dk A/S (direct)
audishop.dk	Punktum dk A/S (direct)
auditorium.dk	Punktum dk A/S (direct)
audivw.dk	Punktum dk A/S (direct)
autocentralen-hobro.dk	Punktum dk A/S (direct)
autocore.dk	Punktum dk A/S (direct)
autogaarden-fredericia.dk	Punktum dk A/S (direct)
autogroup-lf.dk	Punktum dk A/S (direct)
autogroupnordvest.dk	Punktum dk A/S (direct)
autohuset-glostrup-valby.dk	Punktum dk A/S (direct)
autohuset-haderslev.dk	Punktum dk A/S (direct)
autohuset-ringsted.dk	Punktum dk A/S (direct)
automarked.dk	Abion AB
autonomousmobility.dk	Punktum dk A/S (direct)
avj-horsens.dk	Punktum dk A/S (direct)
b2gsmc.dk	Punktum dk A/S (direct)
bentley-cph.dk	Punktum dk A/S (direct)
bentley-motors.dk	Punktum dk A/S (direct)
bentleycopenhagen-service.dk	Punktum dk A/S (direct)
bentleymotors.dk	Punktum dk A/S (direct)
bilco.dk	Punktum dk A/S (direct)
bilhjoernet.dk	Punktum dk A/S (direct)
bilhuset-alleroed.dk	Punktum dk A/S (direct)
bilhuset-praesto.dk	Punktum dk A/S (direct)
bilhusetp.dk	Punktum dk A/S (direct)
bilkortet.dk	Punktum dk A/S (direct)
boxster.dk	Punktum dk A/S (direct)
brugt-audi.dk	Punktum dk A/S (direct)
brugt-seat.dk	Punktum dk A/S (direct)
brugt-skoda.dk	Punktum dk A/S (direct)
brugt-vw.dk	Punktum dk A/S (direct)
brugtseat.dk	Punktum dk A/S (direct)
brugtvolkswagen.dk	Punktum dk A/S (direct)
brugtvw.dk	Punktum dk A/S (direct)
btac.dk	Punktum dk A/S (direct)
carepoint-frederikssund.dk	Punktum dk A/S (direct)
carepoint-glostrup.dk	Punktum dk A/S (direct)
carepoint-helsingor.dk	Punktum dk A/S (direct)
carepoint-hillerod.dk	Punktum dk A/S (direct)
carepoint-kobenhavn-sv.dk	Punktum dk A/S (direct)
carepoint-lemvig.dk	Punktum dk A/S (direct)
carepoint-randers.dk	Punktum dk A/S (direct)
carepoint-roskilde.dk	Punktum dk A/S (direct)
carepoint-taastrup.dk	Punktum dk A/S (direct)
carepoint-thisted.dk	Punktum dk A/S (direct)
carepoint-virum.dk	Punktum dk A/S (direct)

Showing 100 of 570.

📋 WHOIS#

⏱️ Lookup Timing#

64ms

58ms

AAAA

59ms

TXT

407ms

CAA

75ms

HTTPS

66ms

TLSA

145ms

SOA

77ms

MTA-STS

102ms

DNSSEC

181ms

SRV

115ms

Total

1084ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 18:26:42	987ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-21 10:37:45	3066ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-05 22:08:36	1560ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-25 12:15:28 shown	1084ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-23 10:04:12	982ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 02:36:05	1353ms	4 NS 1 A 1 MX	🔓 Insecure