matematiktutor.dk DNS records

🖥️ Nameservers2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
darl.ns.cloudflare.com	108.162.193.98 172.64.33.98 173.245.59.98 2606:4700:58::adf5:3b62 2803:f800:50::6ca2:c162 2a06:98c1:50::ac40:2162	darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com darl.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marge.ns.cloudflare.com	108.162.192.191 172.64.32.191 173.245.58.191 2606:4700:50::adf5:3abf 2803:f800:50::6ca2:c0bf 2a06:98c1:50::ac40:20bf	marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com marge.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records4 records 65ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
3.174.18.102	60s	server-3-174-18-102.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—
3.174.18.40	60s	server-3-174-18-40.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—
3.174.18.51	60s	server-3-174-18-51.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—
3.174.18.54	60s	server-3-174-18-54.cph50.r.cloudfront.net	AS16509	Amazon.com, Inc.	3.128.0.0/10	🇺🇸 United States	—

📧 MX Records6 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	209.85.233.26 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b	lr-in-f26.1e100.net lt-in-x1b.1e100.net lt-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
15	300s	hsm3zl62cucb4nhudauoorrwotkuymw3mw2447lcp4yhaiecmsma.mx-verification.google.com	—	—	—

🔷 AAAA Records (IPv6)8 records 75ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2600:9000:28e5:3400:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:6000:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:a800:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:b200:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:d200:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:d800:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:e400:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:28e5:e600:c:b820:5a80:93a1	60s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—

🔐 HTTPS Records1 records 53ms

Priority	Target	SvcParams
1 service	.	alpn="h2,h3"

📝 TXT Records5 records 184ms

TXT Record
brevo-code:8209d08e6810bcdd8b7e920e16ca58c2
facebook-domain-verification=e0357bwlk25haarff0gonqnhqbhozq
google-site-verification=EFeQ2sZf7RmNY4_2qjgE7sebFRem4scPJoEKyE36pxk
google-site-verification=jl8DQi9677QSXe2a0Ib_plZx7FDaym7LT4Fqa_qYs-E
klaviyo-site-verification=WAWMAD

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 DMARC

Policy	Record (_dmarc.matematiktutor.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC9086ms

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

🏷️ SOA0ms

Field	Value
Serial	2412037996
Primary NS (MNAME)	darl.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

44ms

A

65ms

MX

49ms

AAAA

75ms

TXT

184ms

CAA

31ms

HTTPS

53ms

TLSA

175ms

SOA

0ms

MTA-STS

74ms

DNSSEC

9086ms

SRV

67ms

Total

9924ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 23:19:20	9924ms	2 NS 4 A 6 MX	🔓 Insecure	View
2026-08-13 17:14:23	11486ms	2 NS 4 A 6 MX	🔓 Insecure	View
2026-07-27 08:37:56	1543ms	2 NS 4 A 6 MX	🔓 Insecure	View
2026-07-18 08:06:25	3870ms	2 NS 4 A 6 MX	🔓 Insecure	View
2026-06-17 12:12:30	5229ms	2 NS 4 A 6 MX	🔓 Insecure	View