`trezorauthenticationcheck.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:151^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:80de^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.81^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.222^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ezra.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c0f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c30f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ezra.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:230f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ezra.ns.cloudflare.com`
		A	108.162.195.15^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
		A	162.159.44.15^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
		A	172.64.35.15^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ezra.ns.cloudflare.com`
NS	`ingrid.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aa5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ingrid.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ingrid.ns.cloudflare.com`
		A	108.162.192.165^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	172.64.32.165^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
		A	173.245.58.165^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ingrid.ns.cloudflare.com`
MX	`_dc-mx.7f5eccf122e7.trezorauthenticationcheck.com` ⭐
		A	148.251.53.175^{🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2}
			PTR	`static.175.53.251.148.clients.your-server.de`
		A	148.251.53.209^{🇩🇪 Hetzner148.251.0.0/16 HETZNER-RZ-BLK-ERX2}
			PTR	`static.209.53.251.148.spacens.net`
TXT	`v=spf1 a mx ip4:148.251.53.209 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.81, 172.67.128.222
		IPv6 hints	2606:4700:3035::6815:151, 2606:4700:3035::ac43:80de
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=92, name=cloudflare-ech.com
SOA	`ezra.ns.cloudflare.com`dns@cloudflare.com serial=2411102412

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1786192384

⚠️ On DNS blocklist: tif

Same first word

trezorauthenticationcheck.com

DNS History

10 records (7 active, 3 former)

●NSezra.ns.cloudflare.com2026-03-30 → 2026-08-08 · 5 obs

● 2026-03-30 04:28:08
○ 2026-04-10 18:03:36
○ 2026-05-31 11:01:12
● 2026-06-10 14:48:50
● 2026-08-08 12:56:10

●NSingrid.ns.cloudflare.com2026-03-30 → 2026-08-08 · 5 obs

● 2026-03-30 04:28:08
○ 2026-04-10 18:03:36
○ 2026-05-31 11:01:12
● 2026-06-10 14:48:50
● 2026-08-08 12:56:10

○NSns1.nonverifieddomain.com2026-04-10 → 2026-05-31 · 5 obs

○ 2026-03-30 04:28:08
● 2026-04-10 18:03:36
● 2026-05-31 11:01:12
○ 2026-06-10 14:48:50
○ 2026-08-08 12:56:10

○NSns2.nonverifieddomain.com2026-04-10 → 2026-05-31 · 5 obs

○ 2026-03-30 04:28:08
● 2026-04-10 18:03:36
● 2026-05-31 11:01:12
○ 2026-06-10 14:48:50
○ 2026-08-08 12:56:10

●MX_dc-mx.7f5eccf122e7.trezorauthenticationcheck.com2026-06-10 → 2026-08-08 · 2 obs

● 2026-06-10 14:48:50
● 2026-08-08 12:56:10

●A104.21.1.812026-03-30 → 2026-08-08 · 5 obs

● 2026-03-30 04:28:08
○ 2026-04-10 18:03:36
○ 2026-05-31 11:01:12
● 2026-06-10 14:48:50
● 2026-08-08 12:56:10

●A172.67.128.2222026-03-30 → 2026-08-08 · 5 obs

● 2026-03-30 04:28:08
○ 2026-04-10 18:03:36
○ 2026-05-31 11:01:12
● 2026-06-10 14:48:50
● 2026-08-08 12:56:10

●A2606:4700:3035::6815:1512026-08-08 → 2026-08-08 · 3 obs

○ 2026-06-10 14:48:50
● 2026-08-08 12:56:08
● 2026-08-08 12:56:10

●A2606:4700:3035::ac43:80de2026-03-30 → 2026-08-08 · 5 obs

● 2026-03-30 04:28:08
○ 2026-04-10 18:03:36
○ 2026-05-31 11:01:12
● 2026-06-10 14:48:50
● 2026-08-08 12:56:10

○A2606:4700:3036::6815:1512026-03-30 → 2026-06-10 · 6 obs

● 2026-03-30 04:28:08
○ 2026-04-10 18:03:36
○ 2026-05-31 11:01:12
● 2026-06-10 14:48:50
○ 2026-08-08 12:56:08
○ 2026-08-08 12:56:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
trezorauthenticationcheck.com	ingrid.ns.cloudflare.com, ezra.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.165

NS records: ingrid.ns.cloudflare.com, ezra.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for trezorauthenticationcheck.com (unsigned zone)

⏱️ Timing

Total: 119ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.81, 172.67.128.222`
AAAA	2	`2606:4700:3035::6815:151, 2606:4700:3035::ac43:80de`
NS	2	`ezra.ns.cloudflare.com, ingrid.ns.cloudflare.com`
MX	1	`_dc-mx.7f5eccf122e7.trezorauthentication`
TXT	1	`v=spf1 a mx ip4:148.251.53.209 ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ezra.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ingrid.ns.cloudflare.com, ingrid.ns.cloudflare.com, ingrid.ns.cloudflare.com...)

Analysis

IP Addresses

trezorauthenticationcheck.com points to the four IP addresses 104.21.1.81, 172.67.128.222, 2606:4700:3035::6815:151 and 2606:4700:3035::ac43:80de.

netseven.info, www.thcsductrach.edu.vn, 1wroofing.com and two other host names share IP numbers with trezorauthenticationcheck.com.

Name Servers

trezorauthenticationcheck.com is delegated to two name servers: ezra.ns.cloudflare.com and ingrid.ns.cloudflare.com.

trezorauthenticationcheck.com uses the same name servers as several other domains — among them rezerwacja4490148.sbs, foah1.me, decamponoticias.com and two more.

There is at least partial name server overlap between trezorauthenticationcheck.com and other domains — live365sport.com, (0x736578)amateur.org, servly.top and two more among them.

These name servers are routinely deployed together with the name servers suzanne.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

ezra.ns.cloudflare.com resolves to 108.162.195.15, 162.159.44.15, 172.64.35.15 and 3 other IP addresses.

ingrid.ns.cloudflare.com resolves to 108.162.192.165, 172.64.32.165, 173.245.58.165 and 3 other IP addresses.

Mail Servers

Mail for trezorauthenticationcheck.com is handled by a single mail server, _dc-mx.7f5eccf122e7.trezorauthenticationcheck.com.

_dc-mx.7f5eccf122e7.trezorauthenticationcheck.com carries two IP numbers: 148.251.53.175 and 148.251.53.209.

trezorauthenticationcheck.com - robtex.com