`mail.ostrenko.dev`

DNSSEC	⚠️ Not signed
A	2a02:c207:2298:3553::1^{🇩🇪 CONTABO2a02:c207::/32}
		PTR	`vmi2983553.contaboserver.net`
A	157.173.110.148^{🇬🇧 CONTABO157.173.96.0/20}
TXT	`v=spf1 mx ~all`

`ostrenko.dev`

	DNSSEC	⚠️ Not signed
	A	2a02:c207:2298:3553::1^{🇩🇪 CONTABO2a02:c207::/32}
	A	157.173.110.148^{🇬🇧 CONTABO157.173.96.0/20}
	NS	`curitiba.ns.porkbun.com` ⭐
	NS	`fortaleza.ns.porkbun.com`
	NS	`maceio.ns.porkbun.com`
	NS	`salvador.ns.porkbun.com`
	MX	`mail.ostrenko.dev` ⭐
	TXT	`v=spf1 mx ~all`
	SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2395556454

PTR for

148.110.173.157.in-addr.arpa

MX for

ostrenko.dev

Same first word

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DNS History

2 records (2 active, 0 former)

●A157.173.110.1482026-05-22 → 2026-05-28 · 2 obs

● 2026-05-22 23:34:50
● 2026-05-28 04:11:14

●A2a02:c207:2298:3553::12026-05-22 → 2026-05-28 · 2 obs

● 2026-05-22 23:34:50
● 2026-05-28 04:11:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	10 records
ostrenko.dev	curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com	-

✅ Authoritative Response

Server:162.159.8.140

NS records: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ostrenko.dev (unsigned zone)

⏱️ Timing

Total: 857ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.173.110.148`
AAAA	1	`2a02:c207:2298:3553::1`
TXT	1	`v=spf1 mx ~all`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

Mail Server Role

mail.ostrenko.dev is used as a mail server for ostrenko.dev.

IP Addresses

mail.ostrenko.dev points to two IP numbers: 157.173.110.148 and 2a02:c207:2298:3553::1.

Host names like ostrenko.dev are further examples that share IP numbers with mail.ostrenko.dev.

mail.ostrenko.dev - robtex.com