mail.pfr.su - robtex.com

mail.pfr.su

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:3c1f🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:bf1c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.60.31Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.191.28🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.60.31, 172.67.191.28
IPv6 hints2606:4700:3032::6815:3c1f, 2606:4700:3034::ac43:bf1c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=174, name=cloudflare-ech.com

pfr.su

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:3c1f🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:bf1c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.60.31Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.191.28🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSalice.ns.cloudflare.com ⭐
NSgabe.ns.cloudflare.com
MXmail.pfr.su ⭐
TXTv=spf1 mx ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.60.31, 172.67.191.28
IPv6 hints2606:4700:3032::6815:3c1f, 2606:4700:3034::ac43:bf1c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com
SOAalice.ns.cloudflare.comdns@cloudflare.com serial=2398108720

MX for

pfr.su

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DNS History

6 records (4 active, 2 former)

20192020202120222023202420252026A104.21.60.31172.67.191.282606:4700:3032::6815:3c1f2606:4700:3034::ac43:bf1c109.70.26.37194.85.61.76
●A104.21.60.312026-02-15 → 2026-04-24 · 3 obs
○ 2018-01-01 16:11:52
● 2026-02-15 23:08:54
● 2026-04-24 14:04:10
○A109.70.26.372018-01-01 → 2018-01-01 · 3 obs
● 2018-01-01 16:11:52
○ 2026-02-15 23:08:54
○ 2026-04-24 14:04:10
●A172.67.191.282026-02-15 → 2026-04-24 · 3 obs
○ 2018-01-01 16:11:52
● 2026-02-15 23:08:54
● 2026-04-24 14:04:10
○A194.85.61.762018-01-01 → 2018-01-01 · 3 obs
● 2018-01-01 16:11:52
○ 2026-02-15 23:08:54
○ 2026-04-24 14:04:10
●A2606:4700:3032::6815:3c1f2026-02-15 → 2026-04-24 · 3 obs
○ 2018-01-01 16:11:52
● 2026-02-15 23:08:54
● 2026-04-24 14:04:10
●A2606:4700:3034::ac43:bf1c2026-02-15 → 2026-04-24 · 3 obs
○ 2018-01-01 16:11:52
● 2026-02-15 23:08:54
● 2026-04-24 14:04:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sub.dns.ripn.net, e.dns.ripn.net, a.dns.ripn.net, d.dns.ripn.net...10 records
pfr.sugabe.ns.cloudflare.com, alice.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.60

NS records: gabe.ns.cloudflare.com, alice.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pfr.su (unsigned zone)

⏱️ Timing

Total: 1264ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.191.28, 104.21.60.31
AAAA22606:4700:3032::6815:3c1f, 2606:4700:3034::ac43:bf1c
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (b.dns.ripn.net, b.dns.ripn.net, e.dns.ripn.net...)

Analysis

Mail Server Role

mail.pfr.su serves as the mail server for pfr.su.

IP Addresses

mail.pfr.su maps to four IP numbers: 2606:4700:3032::6815:3c1f, 2606:4700:3034::ac43:bf1c, 104.21.60.31 and 172.67.191.28.

Other host names, for instance starlogic.com.cn, corninsect.xyz, mysticseaport.net, dd415.com and brener.org.il share IP numbers with mail.pfr.su.