syntastic.dk

Records from scan: 2026-10-08 03:00:10 · 1006ms total · last checked 2026-10-19 17:13 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

syntastic.dk is a .dk domain served by 2 nameservers (grace.ns.cloudflare.com, graham.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.63.243 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
grace.ns.cloudflare.com	108.162.192.159 172.64.32.159 173.245.58.159 2606:4700:50::adf5:3a9f 2803:f800:50::6ca2:c09f 2a06:98c1:50::ac40:209f	grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
graham.ns.cloudflare.com	108.162.193.171 172.64.33.171 173.245.59.171 2606:4700:58::adf5:3bab 2803:f800:50::6ca2:c1ab 2a06:98c1:50::ac40:21ab	graham.ns.cloudflare.com graham.ns.cloudflare.com graham.ns.cloudflare.com graham.ns.cloudflare.com graham.ns.cloudflare.com graham.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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.63.243	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.173.94	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	209.85.233.27 2a00:1450:4010:c0d::1a 2a00:1450:4010:c0d::1a	lr-in-f27.1e100.net lq-in-f26.1e100.net lq-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.63.243
🔶 Autoconfig	172.67.173.94

🔷 AAAA Records (IPv6)#

2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:3ff3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:ad5e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 65ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.63.243,172.67.173.94 ech=AEX+DQBB3gAgACB2c1uy59td+jen2mcLTurnqxmtz7wu0hYIBy70fdVRMAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:3ff3,2606:4700:3032::ac43:ad5e

📝 TXT Records#

2 records 221ms

TXT Record
google-site-verification=Ujo9QU3L9tKUvOoV9zaO8cKv1Hh2L-XoswXbdSkWq3w
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (syntastic.dk)
~all (soft fail)	v=spf1 include:_spf.google.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#

checked 2026-10-08 03:00:10

www	104.21.63.243 172.67.173.94 2606:4700:3030::6815:3ff3 2606:4700:3032::ac43:ad5e (AS13335) (address records, no CNAME)
www vs bare domain	Same network syntastic.dk: 104.21.63.243 172.67.173.94 2606:4700:3030::6815:3ff3 2606:4700:3032::ac43:ad5e (AS13335) www.syntastic.dk: 104.21.63.243 172.67.173.94 2606:4700:3030::6815:3ff3 2606:4700:3032::ac43:ad5e (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

130ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2416111169
Primary NS (MNAME)	grace.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#

49ms

35ms

33ms

AAAA

46ms

TXT

221ms

CAA

34ms

HTTPS

65ms

TLSA

186ms

SOA

35ms

MTA-STS

111ms

DNSSEC

130ms

SRV

81ms

Total

1006ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 03:00:10 shown	1006ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 22:55:33	1007ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-24 21:40:19	954ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-23 21:13:35	957ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-07 22:14:21	930ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-01 20:14:15	1019ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-27 04:17:50	10062ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-08 11:51:06	2683ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-26 16:09:42	2709ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-20 20:19:21	637ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 13:43:47	6932ms	2 NS 2 A 5 MX	🔓 Insecure