🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`mail.flashfibra.com.br`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9458^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:27c0^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.192^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.88^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.192, 172.67.148.88
		IPv6 hints	2606:4700:3032::ac43:9458, 2606:4700:3035::6815:27c0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=155, name=cloudflare-ech.com

`flashfibra.com.br`

	DNSSEC	⚠️ Not signed
	A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
	NS	`ashton.ns.cloudflare.com` ⭐
	NS	`christina.ns.cloudflare.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	`facebook-domain-verification=12fxn16wwz2qahiwib4plqm8fv4aw7`
	TXT	`google-site-verification=nIlmcU-pIKurw1c6l5tvYiFj9T1IFRMUaURB0M0BqDs`
	TXT	`v=spf1 a mx include:websitewelcome.com include:_spf.google.com ~all`
	SOA	`ashton.ns.cloudflare.com`dns@cloudflare.com serial=2416769566

Previously MX for

flashfibra.com.br

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Previous names

Next names

DNS History

7 records (4 active, 3 former)

●A104.21.39.1922026-03-30 → 2026-10-17 · 5 obs

○ 2017-03-16 19:44:04
● 2026-03-30 23:25:58
○ 2026-07-03 11:35:22
● 2026-07-25 07:28:50
● 2026-10-17 07:42:44

●A172.67.148.882026-03-30 → 2026-10-17 · 5 obs

○ 2017-03-16 19:44:04
● 2026-03-30 23:25:58
○ 2026-07-03 11:35:22
● 2026-07-25 07:28:50
● 2026-10-17 07:42:44

○A192.185.214.1992017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 19:44:04
○ 2026-03-30 23:25:58
○ 2026-10-17 07:42:44

○A2606:4700:3030::6815:27c02026-03-30 → 2026-05-25 · 5 obs

○ 2017-03-16 19:44:04
● 2026-03-30 23:25:58
● 2026-05-25 03:19:56
○ 2026-06-28 11:48:42
○ 2026-10-17 07:42:44

○A2606:4700:3031::ac43:94582026-03-30 → 2026-05-25 · 5 obs

○ 2017-03-16 19:44:04
● 2026-03-30 23:25:58
● 2026-05-25 03:19:56
○ 2026-06-28 11:48:42
○ 2026-10-17 07:42:44

●A2606:4700:3032::ac43:94582026-06-28 → 2026-10-17 · 5 obs

○ 2026-05-25 03:19:56
● 2026-06-28 11:48:42
○ 2026-07-03 11:35:22
● 2026-07-25 07:28:50
● 2026-10-17 07:42:44

●A2606:4700:3035::6815:27c02026-06-28 → 2026-10-17 · 5 obs

○ 2026-05-25 03:19:56
● 2026-06-28 11:48:42
○ 2026-07-03 11:35:22
● 2026-07-25 07:28:50
● 2026-10-17 07:42:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
br	f.dns.br, c.dns.br, d.dns.br, a.dns.br...	-
flashfibra.com.br	ashton.ns.cloudflare.com, christina.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.173

NS records: ashton.ns.cloudflare.com, christina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flashfibra.com.br (unsigned zone)

⏱️ Timing

Total: 547ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.39.192, 172.67.148.88`
AAAA	2	`2606:4700:3032::ac43:9458, 2606:4700:3035::6815:27c0`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

mail.flashfibra.com.br directs to four IP numbers, which are 104.21.39.192, 172.67.148.88, 2606:4700:3032::ac43:9458 and 2606:4700:3035::6815:27c0.

tvgzhhx.cn, vortexcapitaldress.com, harmoniaspa.pt plus two other host names have IP numbers in common with mail.flashfibra.com.br.

mail.flashfibra.com.br - robtex.com