`mail.ptfbu.com`

DNSSEC	⚠️ Not signed
A	45.139.11.203^{🇮🇷 PARVASYSTEM45.139.11.0/24}
		PTR	`multiplehost.com`

`ptfbu.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:3c09^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:bad5^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.60.9^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.186.213^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`josh.ns.cloudflare.com` ⭐
NS	`nia.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.60.9, 172.67.186.213
		IPv6 hints	2606:4700:3031::6815:3c09, 2606:4700:3035::ac43:bad5
SOA	`josh.ns.cloudflare.com`dns@cloudflare.com serial=2410087010

Previously MX for

ptfbu.com

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DNS History

1 record (1 active, 0 former)

●A45.139.11.2032026-02-15 → 2026-08-13 · 2 obs

● 2026-02-15 22:05:16
● 2026-08-13 15:29:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...	-
ptfbu.com	josh.ns.cloudflare.com, nia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.210

NS records: josh.ns.cloudflare.com, nia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ptfbu.com (unsigned zone)

⏱️ Timing

Total: 109ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.139.11.203`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.ptfbu.com points to a single IP number: 45.139.11.203.

Additional host names — mail.door-center.com, mail.ebadollah.com, mail.grimator.com and two others — share IP numbers with mail.ptfbu.com.

mail.ptfbu.com - robtex.com

mail.ptfbu.com

ptfbu.com