techchapter.dk

📜 Historical scan 2026-06-17 14:33:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

techchapter.dk is a .dk domain served by 4 nameservers (ns-1242.awsdns-27.org, ns-1726.awsdns-23.co.uk, ns-215.awsdns-26.com and 1 more). It was registered on 21 September 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 143.204.238.101 is hosted by Amazon.com, Inc. (AS16509) in United States. The zone is DNSSEC-signed and validates, 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 96ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1242.awsdns-27.org	205.251.196.218 2600:9000:5304:da00::1	ns-1242.awsdns-27.org ns-1242.awsdns-27.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1726.awsdns-23.co.uk	205.251.198.190 2600:9000:5306:be00::1	ns-1726.awsdns-23.co.uk ns-1726.awsdns-23.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-215.awsdns-26.com	205.251.192.215 2600:9000:5300:d700::1	ns-215.awsdns-26.com ns-215.awsdns-26.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-824.awsdns-39.net	205.251.195.56 2600:9000:5303:3800::1	ns-824.awsdns-39.net ns-824.awsdns-39.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records#

4 records 96ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
143.204.238.101	—	server-143-204-238-101.arn53.r.cloudfront.net	AS16509	Amazon.com, Inc.	143.204.224.0/20	🇺🇸 United States	—
143.204.238.108	—	server-143-204-238-108.arn53.r.cloudfront.net	AS16509	Amazon.com, Inc.	143.204.224.0/20	🇺🇸 United States	—
143.204.238.30	—	server-143-204-238-30.arn53.r.cloudfront.net	AS16509	Amazon.com, Inc.	143.204.224.0/20	🇺🇸 United States	—
143.204.238.33	—	server-143-204-238-33.arn53.r.cloudfront.net	AS16509	Amazon.com, Inc.	143.204.224.0/20	🇺🇸 United States	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 215ms

TXT Record
v=spf1 ~all

✉️ SPF#

Policy	Record (techchapter.dk)
~all (soft fail)	v=spf1 ~all

📨 DMARC#

Policy	Record (_dmarc.techchapter.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:postmaster@techchapter.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 2026-10-11 20:49:40

www	Exists, no address
www vs bare domain	www does not resolve techchapter.dk: 18.173.5.14 18.173.5.15 18.173.5.85 18.173.5.9 (AS16509) www.techchapter.dk: no address (all like this)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

239ms

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

🏷️ SOA#

90ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-215.awsdns-26.com
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-14 13:12:57

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-09-21
Expires	2027-09-20 (337d)

🔗 Same registrant#

1 domain

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
tech-chapter.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

96ms

111ms

AAAA

101ms

TXT

215ms

CAA

85ms

HTTPS

92ms

TLSA

435ms

SOA

90ms

MTA-STS

186ms

DNSSEC

239ms

SRV

0ms

Total

1880ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 09:07:07	12292ms	4 NS 4 A 0 MX	🔒 Secure
2026-09-07 22:41:48	5448ms	4 NS 4 A 0 MX	🔒 Secure
2026-08-27 06:47:03	3527ms	4 NS 4 A 0 MX	🔒 Secure
2026-07-03 01:16:53	12321ms	4 NS 4 A 0 MX	🔒 Secure
2026-06-17 14:33:41 shown	1880ms	4 NS 4 A 0 MX	🔒 Secure