mail.shellfu.com - dns.ninja

mail.shellfu.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:86a7🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:19cf🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.207Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.134.167🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.207, 172.67.134.167
IPv6 hints2606:4700:3032::ac43:86a7, 2606:4700:3034::6815:19cf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=152, name=cloudflare-ech.com

shellfu.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:86a7🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:19cf🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.207Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.134.167🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjosh.ns.cloudflare.com ⭐
NSlaura.ns.cloudflare.com
MXmail.protonmail.ch ⭐
MXmailsec.protonmail.ch(8)
TXTprotonmail-verification=06def2ecd6e7a3090c1351442f22c2a5df891dc1
TXTv=spf1 include:_spf.protonmail.ch ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.207, 172.67.134.167
IPv6 hints2606:4700:3032::ac43:86a7, 2606:4700:3034::6815:19cf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=152, name=cloudflare-ech.com
SOAjosh.ns.cloudflare.comdns@cloudflare.com serial=2406275839

Previously MX for

shellfu.com

Same first word

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DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026A104.21.25.207172.67.134.1672606:4700:3032::ac43:86a72606:4700:3034::6815:19cf104.28.20.106104.28.21.106216.70.107.2482400:cb00:2048:1::681c:146a2400:cb00:2048:1::681c:156a
●A104.21.25.2072026-06-24 → 2026-06-24 · 2 obs
○ 2016-06-21 21:46:02
● 2026-06-24 06:42:22
○A104.28.20.1062016-03-03 → 2016-06-21 · 4 obs
○ 2015-11-17 13:55:12
● 2016-03-03 15:46:38
● 2016-06-21 21:46:02
○ 2026-06-24 06:42:22
○A104.28.21.1062016-03-03 → 2016-06-21 · 4 obs
○ 2015-11-17 13:55:12
● 2016-03-03 15:46:38
● 2016-06-21 21:46:02
○ 2026-06-24 06:42:22
●A172.67.134.1672026-06-24 → 2026-06-24 · 2 obs
○ 2016-06-21 21:46:02
● 2026-06-24 06:42:22
○A216.70.107.2482015-06-16 → 2015-11-17 · 4 obs
● 2015-06-16 08:53:24
● 2015-11-17 13:55:12
○ 2016-03-03 15:46:38
○ 2026-06-24 06:42:22
○A2400:cb00:2048:1::681c:146a2016-03-03 → 2016-06-21 · 4 obs
○ 2015-11-17 13:55:12
● 2016-03-03 15:46:38
● 2016-06-21 21:46:02
○ 2026-06-24 06:42:22
○A2400:cb00:2048:1::681c:156a2016-03-03 → 2016-06-21 · 4 obs
○ 2015-11-17 13:55:12
● 2016-03-03 15:46:38
● 2016-06-21 21:46:02
○ 2026-06-24 06:42:22
●A2606:4700:3032::ac43:86a72026-06-24 → 2026-06-24 · 2 obs
○ 2016-06-21 21:46:02
● 2026-06-24 06:42:22
●A2606:4700:3034::6815:19cf2026-06-24 → 2026-06-24 · 2 obs
○ 2016-06-21 21:46:02
● 2026-06-24 06:42:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net...-
shellfu.comjosh.ns.cloudflare.com, laura.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.183

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for shellfu.com (unsigned zone)

⏱️ Timing

Total: 160ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.25.207, 172.67.134.167
AAAA22606:4700:3034::6815:19cf, 2606:4700:3032::ac43:86a7
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 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.shellfu.com directs to four IP numbers, which are 104.21.25.207, 172.67.134.167, 2606:4700:3032::ac43:86a7 and 2606:4700:3034::6815:19cf.

Two other host names, along with bwww.rukers.com, wavehub.co.uk and familie-quiering.de, also share IP numbers with mail.shellfu.com.