`mailserver.b644.com`

	CNAME	`exp.gname.net`
	DNSSEC	⚠️ Not signed
	A	172.65.211.209^{🇺🇸 Cloudflare172.65.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`b644.com`

	CNAME	`exp.gname.net`
	DNSSEC	⚠️ Not signed
	A	172.65.211.209^{🇺🇸 Cloudflare172.65.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

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Similar names

DNS History

2 records (1 active, 1 former)

○A156.252.115.82026-04-16 → 2026-04-16 · 2 obs

● 2026-04-16 03:28:10
○ 2026-08-03 19:08:32

●CNAMEexp.gname.net2026-08-03 → 2026-08-03 · 1 obs

● 2026-08-03 19:08:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
b644.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for b644.com (unsigned zone)

⏱️ Timing

Total: 571ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`exp.gname.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

IP Addresses

mailserver.b644.com points to a single IP number: 172.65.211.209.

Additional host names — bdlszx.com, 021food.net, 8geshuodianying.net and two others — share IP numbers with mailserver.b644.com.

mailserver.b644.com - robtex.com