stringent.dk

📜 Historical scan 2026-09-15 16:34:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

stringent.dk is a .dk domain served by 2 nameservers (coen.ns.cloudflare.com, pat.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.82.20 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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#

2 records 137ms

Nameserver	IP addresses	PTR	ASN / ISP
coen.ns.cloudflare.com	108.162.195.151 162.159.44.151 172.64.35.151 2606:4700:58::a29f:2c97 2803:f800:50::6ca2:c397 2a06:98c1:50::ac40:2397	coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com coen.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
pat.ns.cloudflare.com	108.162.192.139 172.64.32.139 173.245.58.139 2606:4700:50::adf5:3a8b 2803:f800:50::6ca2:c08b 2a06:98c1:50::ac40:208b	pat.ns.cloudflare.com pat.ns.cloudflare.com pat.ns.cloudflare.com pat.ns.cloudflare.com pat.ns.cloudflare.com pat.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 108ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.82.20	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.193.111	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 122ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx01.mail.icloud.com	17.42.251.62 17.42.251.62 17.42.251.62 17.56.9.31 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.154.33 17.57.155.25 17.57.155.25 17.57.156.30 17.57.156.30	mx02.mail.icloud.com mx3.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com ic4-privaterelay.appleid.com smtp1.ic4-privaterelay.appleid.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.
20	300s	mx02.mail.icloud.com	17.42.251.62 17.42.251.62 17.42.251.62 17.56.9.31 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.154.33 17.57.155.25 17.57.155.25 17.57.156.30 17.57.156.30	mx01.mail.icloud.com mx3.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com smtp1.ic4-privaterelay.appleid.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com mx02.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.

🔷 AAAA Records (IPv6)#

2 records 128ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:c16f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5214	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 124ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.82.20,172.67.193.111 ech=AEX+DQBBkwAgACBsQdKXnVC/FfnDjhAXmrRzTVC+IEdFvJ7ytjXrQGvtAQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:c16f,2606:4700:3036::6815:5214

📝 TXT Records#

2 records 259ms

TXT Record
apple-domain=hHwrRm6RXqjeQnrb
v=spf1 include:icloud.com ~all

✉️ SPF#

Policy	Record (stringent.dk)
~all (soft fail)	v=spf1 include:icloud.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 2026-10-09 10:48:26

www	104.21.82.20 172.67.193.111 2606:4700:3034::ac43:c16f 2606:4700:3036::6815:5214 (AS13335) (address records, no CNAME)
www vs bare domain	Same network stringent.dk: 104.21.82.20 172.67.193.111 2606:4700:3034::ac43:c16f 2606:4700:3036::6815:5214 (AS13335) www.stringent.dk: 104.21.82.20 172.67.193.111 2606:4700:3034::ac43:c16f 2606:4700:3036::6815:5214 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

176ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414710423
Primary NS (MNAME)	coen.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

137ms

108ms

122ms

AAAA

128ms

TXT

259ms

CAA

113ms

HTTPS

124ms

TLSA

1064ms

SOA

0ms

MTA-STS

107ms

DNSSEC

176ms

SRV

147ms

Total

2900ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:48:26	1546ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-07 09:41:39	543ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-30 00:22:40	598ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-26 17:07:13	862ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-25 16:54:06	1006ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-15 16:34:03 shown	2900ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-04 22:53:04	3962ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-19 19:09:02	9186ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-28 04:22:56	9774ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-27 03:33:51	2447ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-06 13:09:39	1529ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-03 20:36:49	6947ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-02 13:53:10	10058ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-26 17:18:51	1016ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-18 06:27:05	1193ms	2 NS 2 A 2 MX	🔒 Secure