hostmaster.lsfs.net - robtex.com

hostmaster.lsfs.net

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9fc1🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:96c🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.9.108Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.159.193🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.9.108, 172.67.159.193
IPv6 hints2606:4700:3030::ac43:9fc1, 2606:4700:3032::6815:96c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com

lsfs.net

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9fc1🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:96c🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.9.108Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.159.193🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjoel.ns.cloudflare.com ⭐
NSroxy.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.9.108, 172.67.159.193
IPv6 hints2606:4700:3030::ac43:9fc1, 2606:4700:3032::6815:96c
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=211, name=cloudflare-ech.com
SOAjoel.ns.cloudflare.comdns@cloudflare.com serial=2401830441

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DNS History

4 records (4 active, 0 former)

A104.21.9.108172.67.159.1932606:4700:3030::ac43:9fc12606:4700:3032::6815:96c
●A104.21.9.1082026-03-18 → 2026-04-26 · 2 obs
● 2026-03-18 12:56:16
● 2026-04-26 20:50:52
●A172.67.159.1932026-03-18 → 2026-04-26 · 2 obs
● 2026-03-18 12:56:16
● 2026-04-26 20:50:52
●A2606:4700:3030::ac43:9fc12026-03-18 → 2026-04-26 · 2 obs
● 2026-03-18 12:56:16
● 2026-04-26 20:50:52
●A2606:4700:3032::6815:96c2026-03-18 → 2026-04-26 · 2 obs
● 2026-03-18 12:56:16
● 2026-04-26 20:50:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netk.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net...-
lsfs.netroxy.ns.cloudflare.com, joel.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.184

NS records: roxy.ns.cloudflare.com, joel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lsfs.net (unsigned zone)

⏱️ Timing

Total: 478ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.9.108, 172.67.159.193
AAAA22606:4700:3030::ac43:9fc1, 2606:4700:3032::6815:96c
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

hostmaster.lsfs.net points to four IP numbers: 2606:4700:3030::ac43:9fc1, 2606:4700:3032::6815:96c, 104.21.9.108 and 172.67.159.193.

Other host names, for instance bjsmky.icoc.cc, yihsdg.icoc.cc, st.i(0x706f726e)ia.com, free-www.firstjobsh.icoc.cc and a17-112-152-www.huahui6668.icoc.cc share IP numbers with hostmaster.lsfs.net.