chapter5.dk

📜 Historical scan 2026-10-13 03:55:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

chapter5.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 5 June 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.41.216.137 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by chapter5-dk.mail.protection.outlook.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#

3 records 90ms

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#

1 records 93ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.41.216.137	3600s	—	AS8075	Microsoft Corporation	104.40.0.0/13	🇮🇪 Ireland	Dublin

📧 MX Records#

1 records 98ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	chapter5-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca09::28 2a01:111:f403:ca09::a 52.101.103.39 52.101.68.12 52.101.73.120 52.101.91.162	mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 126ms

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

📝 TXT Records#

2 records 302ms

TXT Record
82B5041EAE3BF9FC6B83DA31B604A9E562C103D72D5DF0F2A65F50A863BDDA4B
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (chapter5.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.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#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 21:18:32

www	104.41.216.137 (AS8075) (address records, no CNAME)
www vs bare domain	Same network chapter5.dk: 104.41.216.137 (AS8075) www.chapter5.dk: 104.41.216.137 (AS8075)
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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

200ms

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

🏷️ SOA#

71ms

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 2026-10-04 12:16:24

Field	Value
Registrar	Simply.com A/S
Registered	2018-06-05
Expires	2028-06-30 (617d)

📋 WHOIS#

⏱️ Lookup Timing#

90ms

93ms

98ms

AAAA

100ms

TXT

302ms

CAA

79ms

HTTPS

83ms

TLSA

806ms

SOA

71ms

MTA-STS

129ms

DNSSEC

200ms

SRV

126ms

Total

2185ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 21:18:32	520ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-13 03:55:26 shown	2185ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-04 12:03:59	905ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-30 11:50:32	506ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-29 20:52:30	1051ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-02 14:04:19	1097ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-02 00:39:41	847ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 20:24:33	651ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 20:21:07	635ms	2 NS 1 A 1 MX	🔓 Insecure