mail.byfile.com - robtex.com

mail.byfile.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2f2🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:81d5🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.2.242Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.129.213🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.2.242, 172.67.129.213
IPv6 hints2606:4700:3030::6815:2f2, 2606:4700:3037::ac43:81d5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=118, name=cloudflare-ech.com

byfile.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2f2🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:81d5🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.2.242Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.129.213🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSfatima.ns.cloudflare.com ⭐
NSmaxim.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.2.242, 172.67.129.213
IPv6 hints2606:4700:3030::6815:2f2, 2606:4700:3037::ac43:81d5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=118, name=cloudflare-ech.com
SOAfatima.ns.cloudflare.comdns@cloudflare.com serial=2404588840

Previously MX for

byfile.com

Same first word

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DNS History

6 records (4 active, 2 former)

A104.21.2.242172.67.129.2132606:4700:3030::6815:2f22606:4700:3037::ac43:81d52606:4700:3032::ac43:81d52606:4700:3036::6815:2f2
●A104.21.2.2422026-04-19 → 2026-07-15 · 2 obs
● 2026-04-19 00:10:24
● 2026-07-15 10:17:56
●A172.67.129.2132026-04-19 → 2026-07-15 · 2 obs
● 2026-04-19 00:10:24
● 2026-07-15 10:17:56
●A2606:4700:3030::6815:2f22026-07-15 → 2026-07-15 · 2 obs
○ 2026-04-19 00:10:24
● 2026-07-15 10:17:56
○A2606:4700:3032::ac43:81d52026-04-19 → 2026-04-19 · 2 obs
● 2026-04-19 00:10:24
○ 2026-07-15 10:17:56
○A2606:4700:3036::6815:2f22026-04-19 → 2026-04-19 · 2 obs
● 2026-04-19 00:10:24
○ 2026-07-15 10:17:56
●A2606:4700:3037::ac43:81d52026-07-15 → 2026-07-15 · 2 obs
○ 2026-04-19 00:10:24
● 2026-07-15 10:17:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
byfile.comfatima.ns.cloudflare.com, maxim.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.188

NS records: fatima.ns.cloudflare.com, maxim.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for byfile.com (unsigned zone)

⏱️ Timing

Total: 144ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.2.242, 172.67.129.213
AAAA22606:4700:3037::ac43:81d5, 2606:4700:3030::6815:2f2
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.byfile.com directs to four IP numbers, which are 104.21.2.242, 172.67.129.213, 2606:4700:3030::6815:2f2 and 2606:4700:3037::ac43:81d5.

Additional host names — dnscity.org, projetovivo.com, mail.dstoebling.com and two others — share IP numbers with mail.byfile.com.