`mx.stembiology.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
		PTR	`ip-207-148-248-143.defastlink.net`

`stembiology.com`

	DNSSEC	⚠️ Not signed
	A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
	NS	`ns.buydomains.com` ⚠️ Not in zone NS records
	NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records

Previously MX for

stembiology.com

Same first word

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DNS History

4 records (1 active, 3 former)

●A207.148.248.1432026-02-26 → 2026-03-23 · 3 obs

○ 2016-09-17 14:15:06
● 2026-02-26 06:58:58
● 2026-03-23 06:31:16

○A65.254.254.502015-08-12 → 2016-09-17 · 4 obs

● 2015-08-12 15:45:46
● 2016-09-17 14:15:06
○ 2026-02-26 06:58:58
○ 2026-03-23 06:31:16

○A65.254.254.512015-08-12 → 2016-09-17 · 4 obs

● 2015-08-12 15:45:46
● 2016-09-17 14:15:06
○ 2026-02-26 06:58:58
○ 2026-03-23 06:31:16

○A65.254.254.522015-08-12 → 2016-09-17 · 4 obs

● 2015-08-12 15:45:46
● 2016-09-17 14:15:06
○ 2026-02-26 06:58:58
○ 2026-03-23 06:31:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
stembiology.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server:52.4.207.204

NS records: ns.buydomains.com, this-domain-for-sale.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stembiology.com (unsigned zone)

⏱️ Timing

Total: 107ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

IP Addresses

mx.stembiology.com resolves to one IP number: 207.148.248.143.

Other host names, for instance jellyfishworld.com, wiggyworks.com, avdm.org, shopsitting.com and negroart.com share IP numbers with mx.stembiology.com.

mx.stembiology.com - robtex.com