`mail.dtcore.org`

DNSSEC	⚠️ Not signed
A	54.37.197.187^{🇫🇷 OVH54.37.0.0/16}
		PTR	`mail.dtcore.org`

`dtcore.org`

	DNSSEC	⚠️ Not signed
	NS	`gabriella.ns.cloudflare.com` ⭐
	NS	`roman.ns.cloudflare.com`
	MX	`mail.dtcore.org` ⭐
	TXT	`v=spf1 mx:dtcore.org -all`
	SOA	`gabriella.ns.cloudflare.com`dns@cloudflare.com serial=2400032724

PTR for

187.197.37.54.in-addr.arpa

MX for

dtcore.org

Same first word

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DNS History

1 record (1 active, 0 former)

●A54.37.197.1872026-03-27 → 2026-03-28 · 2 obs

● 2026-03-27 09:30:36
● 2026-03-28 07:59:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
dtcore.org	roman.ns.cloudflare.com, gabriella.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.103

NS records: roman.ns.cloudflare.com, gabriella.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dtcore.org (unsigned zone)

⏱️ Timing

Total: 227ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.37.197.187`

Analysis

Mail Server Role

mail.dtcore.org is the mail server for dtcore.org.

IP Addresses

mail.dtcore.org points to a single IP number: 54.37.197.187.

Other host names, for instance ip187.ip-54-37-197.eu, share IP numbers with mail.dtcore.org.

mail.dtcore.org - robtex.com

mail.dtcore.org

dtcore.org