altschuler.dk DNS records

🖥️ Nameservers4 records 70ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1360.awsdns-42.org	205.251.197.80 2600:9000:5305:5000::1	ns-1360.awsdns-42.org ns-1360.awsdns-42.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1690.awsdns-19.co.uk	205.251.198.154 2600:9000:5306:9a00::1	ns-1690.awsdns-19.co.uk ns-1690.awsdns-19.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-264.awsdns-33.com	205.251.193.8 2600:9000:5301:800::1	ns-264.awsdns-33.com ns-264.awsdns-33.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-621.awsdns-13.net	205.251.194.109 2600:9000:5302:6d00::1	ns-621.awsdns-13.net ns-621.awsdns-13.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records1 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.150.1.1	300s	—	AS16509	Amazon.com, Inc.	216.150.1.0/24	🇺🇸 United States	—

📧 MX Records2 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	in1-smtp.messagingengine.com	103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 103.168.172.223	phl-mx-01.messagingengine.com phl-mx-02.messagingengine.com phl-mx-03.messagingengine.com phl-mx-04.messagingengine.com phl-mx-05.messagingengine.com phl-mx-06.messagingengine.com phl-mx-07.messagingengine.com phl-mx-08.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd
20	300s	in2-smtp.messagingengine.com	202.12.124.216 202.12.124.217 202.12.124.218 202.12.124.219	stl-mx-01.messagingengine.com stl-mx-02.messagingengine.com stl-mx-03.messagingengine.com stl-mx-04.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 88ms

Service	Priority	Weight	Port	Target
_imaps._tcp	0	1	993	imap.fastmail.com

📝 TXT Records1 records 255ms

TXT Record
v=spf1 include:spf.messagingengine.com ?all

✉️ SPF

Policy	Record (altschuler.dk)
?all (neutral)	v=spf1 include:spf.messagingengine.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

🔗 TLSA / DANE

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

🔐 DNSSEC9089ms

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	1
Primary NS (MNAME)	ns-1690.awsdns-19.co.uk
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

70ms

A

61ms

MX

70ms

AAAA

52ms

TXT

255ms

CAA

53ms

HTTPS

58ms

TLSA

246ms

SOA

0ms

MTA-STS

90ms

DNSSEC

9089ms

SRV

88ms

Total

12310ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 07:22:51	12310ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-24 03:35:26	2141ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-24 02:30:27	1190ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 06:44:36	2554ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 12:52:19	2424ms	4 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 12:50:17	2298ms	4 NS 1 A 2 MX	🔓 Insecure	View