mail.flash-u.com - dns.ninja

`mail.flash-u.com`

CNAME	`ghs.googlehosted.com`
DNSSEC	⚠️ Not signed
A	2a00:1450:4009:c04::79^{🇬🇧 Google2a00:1450:4009::/48}
		PTR	`um-in-f121.1e100.net`
A	142.250.117.121^{🇺🇸 Google142.250.117.0/24}

`flash-u.com`

	DNSSEC	⚠️ Not signed
	A	94.130.89.243^{🇩🇪 Hetzner94.130.0.0/16 HETZNER-DC}
	NS	`ns1.first-ns.de` ⭐
	NS	`robotns2.second-ns.de`
	NS	`robotns3.second-ns.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`v=spf1 include:spf.mandrillapp.com include:_spf.google.com include:servers.mc...`
	TXT	`google-site-verification=C7g8H8m59TVD49ZeKH1V3THxhnTQ31bq1inm_RStKZU`
	TXT	`google-site-verification=r9MrcT6lVYOz5GTeuLx-W2-WA3vLVpbnq_VmHAy7CT0`
	SOA	`ns1.first-ns.de`dns@hetzner.com 2026-07-03 #1

Previously MX for

flash-u.com

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DNS History

7 records (1 active, 6 former)

○A176.9.9.262015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 08:28:14
○ 2015-10-30 11:29:12
○ 2026-08-04 10:11:28

○A178.63.3.152015-10-30 → 2015-10-30 · 4 obs

○ 2015-06-10 08:28:14
● 2015-10-30 11:29:12
○ 2016-01-23 17:10:14
○ 2026-08-04 10:11:28

○A2a00:1450:400c:c01::792016-01-23 → 2016-01-23 · 4 obs

○ 2015-10-30 11:29:12
● 2016-01-23 17:10:14
○ 2016-04-14 17:00:04
○ 2026-08-04 10:11:28

○A2a00:1450:400c:c09::792016-04-14 → 2016-04-14 · 4 obs

○ 2016-01-23 17:10:14
● 2016-04-14 17:00:04
○ 2026-04-25 15:46:24
○ 2026-08-04 10:11:28

○A64.233.166.1212016-04-14 → 2016-04-14 · 4 obs

○ 2016-01-23 17:10:14
● 2016-04-14 17:00:04
○ 2026-04-25 15:46:24
○ 2026-08-04 10:11:28

○A74.125.195.1212016-01-23 → 2016-01-23 · 4 obs

○ 2015-10-30 11:29:12
● 2016-01-23 17:10:14
○ 2016-04-14 17:00:04
○ 2026-08-04 10:11:28

●CNAMEghs.googlehosted.com2016-01-23 → 2026-08-04 · 2 obs

● 2016-01-23 17:10:14
● 2026-08-04 10:11:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net...	-
flash-u.com	ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com	2 records

✅ Authoritative Response

Server:213.239.242.238

NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flash-u.com (unsigned zone)

⏱️ Timing

Total: 278ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`ghs.googlehosted.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (robotns3.second-ns.com, robotns3.second-ns.com)

Analysis

IP Addresses

mail.flash-u.com has two IP addresses: 142.250.117.121 and 2a00:1450:4009:c04::79

Additional host names — bitterwalletgmail.feedproxy.ghs.google.com, gc-sc.org, pub-5066584063058643.afd.ghs.google.com and two others — share IP numbers with mail.flash-u.com.