harpercollins.dk DNS records

🖥️ Nameservers6 records 60ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.markmonitor.com	149.112.160.1 2620:10a:80a8::1	— —	AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
ns2.markmonitor.com	176.97.158.1 2001:67c:10b8::1	ns2.markmonitor.com ns2.markmonitor.com	AS207021 ipcom GmbH AS207021 ipcom GmbH
ns3.markmonitor.com	149.112.161.1 2620:10a:80a9::1	— —	AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I
ns4.markmonitor.com	192.174.68.1 2001:67c:1bc::1	ns1.markmonitor.com ns1.markmonitor.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns5.markmonitor.com	149.112.160.2 2620:10a:80a8::2	— —	AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
ns6.markmonitor.com	176.97.158.3 2001:67c:10b8::3	ns6.markmonitor.com ns6.markmonitor.com	AS207021 ipcom GmbH AS207021 ipcom GmbH

🌍 A Records1 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.135.42	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—

📧 MX Records2 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	mxa-00596a01.gslb.pphosted.com	205.220.170.48	mx0a-00596a01.pphosted.com	AS26211 Proofpoint, Inc.
5	3600s	mxb-00596a01.gslb.pphosted.com	205.220.182.48	mx0b-00596a01.pphosted.com	AS22843 Proofpoint, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 103ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	intranat.harlequin.se

📝 TXT Records4 records 319ms

TXT Record
ca3-abf7a69e85fd47f58c148265ad25e91e
knowbe4-site-verification=0694ce74005828dc4bb8b7299bfb6f61
MS=ms42789412
v=spf1 include:carmamail.com include:spf.protection.outlook.com include:spf-00596a01.pphosted.com -all

✉️ SPF

Policy	Record (harpercollins.dk)
-all (hard fail)	v=spf1 include:carmamail.com include:spf.protection.outlook.com include:spf-00596a01.pphosted.com -all

📨 DMARC

Policy	Record (_dmarc.harpercollins.dk)
p=reject	v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.harpercollins.dk	harpercollins.dk.kinstavalidation.app

🔗 TLSA / DANE

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

🔐 DNSSEC83ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081801
Primary NS (MNAME)	ns1.markmonitor.com
Responsible (RNAME)	hostmaster@markmonitor.com
Refresh	86400s
Retry	3600s
Expire	2592000s
Minimum (neg-cache TTL)	172800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

60ms

A

41ms

MX

59ms

AAAA

47ms

TXT

319ms

CAA

54ms

HTTPS

67ms

TLSA

428ms

SOA

0ms

MTA-STS

88ms

DNSSEC

83ms

SRV

103ms

Total

2049ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 07:49:17	2049ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-08-19 23:26:49	16766ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-06-30 02:59:50	1566ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-06-21 00:27:46	1418ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 11:04:46	1626ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 11:00:13	5217ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 10:57:06	1757ms	6 NS 1 A 2 MX	🔓 Insecure	View
2026-06-17 10:54:43	1804ms	6 NS 1 A 2 MX	🔓 Insecure	View