flat9.dev - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`flat9.dev`

DNSSEC	⚠️ Not signed
A	2600:1f18:16e:df01::258^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:16e:df01::259^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	18.208.88.157^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
A	98.84.224.111^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
NS	`dns1.p04.nsone.net` ⭐
		A	2620:4d:4000:6259:7:4:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p04.nsone.net`
		A	198.51.44.4^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p04.nsone.net`
NS	`dns2.p04.nsone.net`
		A	2a00:edc0:6259:7:4::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p04.nsone.net`
		A	198.51.45.4^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p04.nsone.net`
NS	`dns3.p04.nsone.net`
		A	2620:4d:4000:6259:7:4:0:3^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns3.p04.nsone.net`
		A	198.51.44.68^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns3.p04.nsone.net`
NS	`dns4.p04.nsone.net`
		A	2a00:edc0:6259:7:4::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p04.nsone.net`
		A	198.51.45.68^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns4.p04.nsone.net`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`v=spf1 include:_spf.protonmail.ch mx ~all`
TXT	`protonmail-verification=349e66a6b03c9bc505b687b260ae99a34ddfba50`
SOA	`dns1.p04.nsone.net`domains+netlify@netlify.com serial=1660201367

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

flat9.com

flat9.co

flat9.co.jp

flat9.net

flat9.be

flat9.me

flat9.uk

flat9.dev

flat9.io

Similar names

9flat.de

altf9.workers.dev

altf9.in

f9atl.com

9flat.com

altf9.com

altf9.tech

Previous names

Next names

flatart.dev

flatbeat.dev

flatbed.dev

flatbird.dev

flatbox.dev

flatbuffers.dev

flatcal.dev

flatcap.dev

flatcat.dev

flatcode.dev

flatcoder.dev

flate.dev

flaten.dev

flatfile.dev

flatfive.dev

flatfour.dev

flatfox.dev

flatgub.dev

flathost.dev

flaticols.dev

DNS History

14 records (10 active, 4 former)

●NSdns1.p04.nsone.net2026-09-22 → 2026-09-25 · 2 obs

● 2026-09-22 11:30:24
● 2026-09-25 06:25:58

●NSdns2.p04.nsone.net2026-09-22 → 2026-09-25 · 2 obs

● 2026-09-22 11:30:24
● 2026-09-25 06:25:58

●NSdns3.p04.nsone.net2026-09-22 → 2026-09-25 · 2 obs

● 2026-09-22 11:30:24
● 2026-09-25 06:25:58

●NSdns4.p04.nsone.net2026-09-22 → 2026-09-25 · 2 obs

● 2026-09-22 11:30:24
● 2026-09-25 06:25:58

●MXmail.protonmail.ch2026-09-22 → 2026-09-25 · 2 obs

● 2026-09-22 11:30:24
● 2026-09-25 06:25:58

●MXmailsec.protonmail.ch2026-09-22 → 2026-09-25 · 2 obs

● 2026-09-22 11:30:24
● 2026-09-25 06:25:58

●A18.208.88.1572026-09-23 → 2026-09-25 · 3 obs

○ 2026-09-22 11:30:24
● 2026-09-23 08:07:54
● 2026-09-25 06:25:58

●A2600:1f18:16e:df01::2582026-09-23 → 2026-09-25 · 3 obs

○ 2026-09-22 11:30:24
● 2026-09-23 08:07:54
● 2026-09-25 06:25:58

●A2600:1f18:16e:df01::2592026-09-23 → 2026-09-25 · 3 obs

○ 2026-09-22 11:30:24
● 2026-09-23 08:07:54
● 2026-09-25 06:25:58

○A2a05:d014:58f:6200::2582026-09-22 → 2026-09-22 · 3 obs

● 2026-09-22 11:30:24
○ 2026-09-23 08:07:54
○ 2026-09-25 06:25:58

○A2a05:d014:58f:6200::2592026-09-22 → 2026-09-22 · 3 obs

● 2026-09-22 11:30:24
○ 2026-09-23 08:07:54
○ 2026-09-25 06:25:58

○A35.157.26.1352026-09-22 → 2026-09-22 · 3 obs

● 2026-09-22 11:30:24
○ 2026-09-23 08:07:54
○ 2026-09-25 06:25:58

○A63.176.8.2182026-09-22 → 2026-09-22 · 3 obs

● 2026-09-22 11:30:24
○ 2026-09-23 08:07:54
○ 2026-09-25 06:25:58

●A98.84.224.1112026-09-23 → 2026-09-25 · 3 obs

○ 2026-09-22 11:30:24
● 2026-09-23 08:07:54
● 2026-09-25 06:25:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
flat9.dev	dns4.p04.nsone.net, dns3.p04.nsone.net, dns2.p04.nsone.net, dns1.p04.nsone.net	-

✅ Authoritative Response

Server:198.51.45.4

NS records: dns4.p04.nsone.net, dns3.p04.nsone.net, dns2.p04.nsone.net, dns1.p04.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flat9.dev (unsigned zone)

⏱️ Timing

Total: 1158ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`98.84.224.111, 18.208.88.157`
AAAA	2	`2600:1f18:16e:df01::259, 2600:1f18:16e:df01::258`
NS	4	`dns1.p04.nsone.net, dns2.p04.nsone.net...`
MX	2	`mailsec.protonmail.ch (pri: 20), mail.protonmail.ch (pri: 10)`
TXT	2	`v=spf1 include:_spf.protonmail.ch mx ~al, protonmail-verification=349e66a6b03c9bc5`
SOA	1	`dns1.p04.nsone.net domains+netlify.netli`

Analysis

IP Addresses

flat9.dev directs to four IP numbers, which are 18.208.88.157, 98.84.224.111, 2600:1f18:16e:df01::258 and 2600:1f18:16e:df01::259.

Additional host names — outlandfencing.com, maie.app, rezidenciamagnolia.bg and two others — share IP numbers with flat9.dev.

Name Servers

flat9.dev has four authoritative name servers: dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net and dns4.p04.nsone.net.

The name servers of flat9.dev overlap at least partially with those of other domains — among them prototypehairdynasty.com, lftphicreative.com, harrodhouse.com and two more.

These name servers commonly appear in delegations together with ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com and 7 other.

Each of the four hosts dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net and dns4.p04.nsone.net has two IP addresses. dns1.p04.nsone.net points to 198.51.44.4 and 2620:4d:4000:6259:7:4:0:1. dns2.p04.nsone.net points to 198.51.45.4 and 2a00:edc0:6259:7:4::2. dns3.p04.nsone.net points to 198.51.44.68 and 2620:4d:4000:6259:7:4:0:3. dns4.p04.nsone.net points to 198.51.45.68 and 2a00:edc0:6259:7:4::4.

Mail Servers

flat9.dev has two mail servers: mail.protonmail.ch and mailsec.protonmail.ch.

flat9.dev shares the same mail server setup as other domains, including liknot.com, elevatebusinesssolutions.info, fichrpartners.com and two others.

flat9.dev shares mail servers — at least in part — with other domains, including cephpv.com, automatingsecops.com, paquestone.wiki and two others.

Both mail.protonmail.ch and mailsec.protonmail.ch point to three IP numbers: mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128, while mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.