seiler.dev - dns.ninja

`seiler.dev`

DNSSEC	⚠️ Not signed
NS	`ns1.digitalocean.com` ⭐
		A	2606:4700:52::ac40:34d2^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
		A	172.64.52.210^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
NS	`ns2.digitalocean.com`
		A	2606:4700:5a::ac40:3515^{🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
		A	172.64.53.21^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
NS	`ns3.digitalocean.com`
		A	2606:4700:52::ac40:31d1^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
		A	172.64.49.209^{🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
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=3b75a37e74a0e33f8836cb61688a35d42453e88e`
SOA	`ns1.digitalocean.com`hostmaster@seiler.dev serial=0

`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

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DNS History

5 records (5 active, 0 former)

●NSns1.digitalocean.com2026-07-22 → 2026-07-24 · 2 obs

● 2026-07-22 09:13:48
● 2026-07-24 20:45:50

●NSns2.digitalocean.com2026-07-22 → 2026-07-24 · 2 obs

● 2026-07-22 09:13:48
● 2026-07-24 20:45:50

●NSns3.digitalocean.com2026-07-22 → 2026-07-24 · 2 obs

● 2026-07-22 09:13:48
● 2026-07-24 20:45:50

●MXmail.protonmail.ch2026-07-22 → 2026-07-24 · 2 obs

● 2026-07-22 09:13:48
● 2026-07-24 20:45:50

●MXmailsec.protonmail.ch2026-07-22 → 2026-07-24 · 2 obs

● 2026-07-22 09:13:48
● 2026-07-24 20:45:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
seiler.dev	ns3.digitalocean.com, ns1.digitalocean.com, ns2.digitalocean.com	-

✅ Authoritative Response

Server:172.64.49.209

NS records: ns3.digitalocean.com, ns1.digitalocean.com, ns2.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for seiler.dev (unsigned zone)

⏱️ Timing

Total: 491ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`ns1.digitalocean.com, ns3.digitalocean.com...`
MX	2	`mailsec.protonmail.ch (pri: 20), mail.protonmail.ch (pri: 10)`
TXT	2	`v=spf1 include:_spf.protonmail.ch mx ~al, protonmail-verification=3b75a37e74a0e33f`
SOA	1	`ns1.digitalocean.com hostmaster.seiler.d`

Analysis

Name Servers

Three name servers are authoritative for seiler.dev: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

seiler.dev has at least partial name server overlap with other domains, such as mlff.tk, h2o2.me, 143.226.188.in-addr.arpa and two others.

ns1.digitalocean.com resolves to 172.64.52.210 and 2606:4700:52::ac40:34d2. ns2.digitalocean.com resolves to 172.64.53.21 and 2606:4700:5a::ac40:3515. ns3.digitalocean.com resolves to 172.64.49.209 and 2606:4700:52::ac40:31d1. All three hostnames point to two IP numbers each.

Mail Servers

seiler.dev is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

Among the domains sharing a mail server setup with seiler.dev are birnir.is, sme.lt, crisscrossed.de and two others.

There is at least a partial MX overlap between seiler.dev and other domains, including cukierek.be, nuvole.ch, name-holdings.com and two others.

mail.protonmail.ch and mailsec.protonmail.ch each have three IP addresses — mail.protonmail.ch directs to 176.119.200.128, 185.70.42.128 and 185.205.70.128; mailsec.protonmail.ch directs to 176.119.200.129, 185.70.42.129 and 185.205.70.129.