tech-chapter.dk

📜 Historical scan 2026-06-29 03:38:29  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tech-chapter.dk is a .dk domain served by 4 nameservers (ns-1169.awsdns-18.org, ns-1905.awsdns-46.co.uk, ns-312.awsdns-39.com and 1 more). It was registered on 22 December 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 18.173.5.112 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   66ms
NameserverIP addressesPTRASN / ISP
ns-1169.awsdns-18.org 205.251.196.145
2600:9000:5304:9100::1		 ns-1169.awsdns-18.org
ns-1169.awsdns-18.org		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-1905.awsdns-46.co.uk 205.251.199.113
2600:9000:5307:7100::1		 ns-1905.awsdns-46.co.uk
ns-1905.awsdns-46.co.uk		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-312.awsdns-39.com 205.251.193.56
2600:9000:5301:3800::1		 ns-312.awsdns-39.com
ns-312.awsdns-39.com		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
ns-977.awsdns-58.net 205.251.195.209
2600:9000:5303:d100::1		 ns-977.awsdns-58.net
ns-977.awsdns-58.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.

🌍 A Records#

4 records   67ms
IPTTLPTRASNISP / OrgCIDRCountryCity
18.173.5.112 60s server-18-173-5-112.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 18.173.0.0/21 🇺🇸 United States —
18.173.5.47 60s server-18-173-5-47.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 18.173.0.0/21 🇺🇸 United States —
18.173.5.55 60s server-18-173-5-55.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 18.173.0.0/21 🇺🇸 United States —
18.173.5.88 60s server-18-173-5-88.cph50.r.cloudfront.net AS16509 Amazon.com, Inc. 18.173.0.0/21 🇺🇸 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   250ms
TXT Record
v=spf1 ~all

✉️ SPF#

PolicyRecord (tech-chapter.dk)
~all (soft fail) v=spf1 ~all

📨 DMARC#

PolicyRecord (_dmarc.tech-chapter.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 2026-10-10 04:12:48
www18.173.5.112 18.173.5.47 18.173.5.55 18.173.5.88 (AS16509) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYNone 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#

78ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

29ms
FieldValue
Serial1
Primary NS (MNAME)ns-1905.awsdns-46.co.uk
Responsible (RNAME)awsdns-hostmaster@amazon.com
Refresh7200s
Retry900s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-15 22:12:20
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2022-12-22
Expires2026-12-21 (64d)

🔗 Same registrant#

3 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).

DomainRegistrar
data2.dkPunktum dk A/S (direct)
skysovs.dkPunktum dk A/S (direct)
techchapter.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
66ms
A
67ms
MX
42ms
AAAA
53ms
TXT
250ms
CAA
58ms
HTTPS
41ms
TLSA
81ms
SOA
29ms
MTA-STS
58ms
DNSSEC
78ms
SRV
89ms
Total
878ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 07:39:18 2891ms 4 NS 4 A 0 MX 🔒 Secure
2026-09-14 16:00:15 3518ms 4 NS 4 A 0 MX 🔒 Secure
2026-06-29 03:38:29 shown 878ms 4 NS 4 A 0 MX 🔒 Secure
2026-06-27 04:24:57 844ms 4 NS 4 A 0 MX 🔒 Secure
2026-06-20 23:41:20 1949ms 4 NS 4 A 0 MX 🔒 Secure
2026-06-20 20:09:42 1116ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-19 10:45:26 1032ms 4 NS 4 A 0 MX 🔒 Secure
2026-06-17 23:28:17 3289ms 4 NS 4 A 0 MX 🔒 Secure
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