harpercollins.dk

📜 Historical scan 2026-06-17 10:54:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

harpercollins.dk is a .dk domain served by 6 nameservers (ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 3 more). It was registered on 14 August 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.135.42 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mxa-00596a01.gslb.pphosted.com, mxb-00596a01.gslb.pphosted.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#

6 records 51ms

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 AS1921 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 AS1921 ipcom GmbH

🌍 A Records#

1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.135.42	—	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—

📧 MX Records#

2 records 68ms

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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 199ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 10:13:28

www	162.159.135.42 (AS13335) (address records, no CNAME)
www vs bare domain	Same network harpercollins.dk: 162.159.135.42 (AS13335) www.harpercollins.dk: 162.159.135.42 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

158ms

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

🏷️ SOA#

61ms

Field	Value
Serial	2026022601
Primary NS (MNAME)	ns1.markmonitor.com
Responsible (RNAME)	hostmaster@markmonitor.com
Refresh	86400s
Retry	3600s
Expire	2592000s
Minimum (neg-cache TTL)	172800s

📋 Registration#

WHOIS fetched 2026-10-07 12:10:57

Field	Value
Registrar	MarkMonitor Inc.
Registered	2014-08-14
Expires	2027-08-31 (316d)

📋 WHOIS#

⏱️ Lookup Timing#

51ms

54ms

68ms

AAAA

72ms

TXT

199ms

CAA

68ms

HTTPS

93ms

TLSA

77ms

SOA

61ms

MTA-STS

121ms

DNSSEC

158ms

SRV

0ms

Total

1804ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:13:28	2030ms	6 NS 1 A 2 MX	🔓 Insecure
2026-09-30 13:34:30	4457ms	6 NS 1 A 2 MX	🔓 Insecure
2026-09-24 14:14:20	5708ms	6 NS 1 A 2 MX	🔓 Insecure
2026-08-28 07:49:17	2049ms	6 NS 1 A 2 MX	🔓 Insecure
2026-08-19 23:26:49	16766ms	6 NS 1 A 2 MX	🔓 Insecure
2026-06-30 02:59:50	1566ms	6 NS 1 A 2 MX	🔓 Insecure
2026-06-21 00:27:46	1418ms	6 NS 1 A 2 MX	🔓 Insecure
2026-06-17 11:04:46	1626ms	6 NS 1 A 2 MX	🔓 Insecure
2026-06-17 11:00:13	5217ms	6 NS 1 A 2 MX	🔓 Insecure
2026-06-17 10:57:06	1757ms	6 NS 1 A 2 MX	🔓 Insecure
2026-06-17 10:54:43 shown	1804ms	6 NS 1 A 2 MX	🔓 Insecure