hostmaster.csfa.net - robtex.com

hostmaster.csfa.net

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:588c🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b47c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.88.140Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.180.124🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.88.140, 172.67.180.124
IPv62606:4700:3030::6815:588c, 2606:4700:3035::ac43:b47c

csfa.net

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:588c🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b47c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.88.140Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.180.124🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSabby.ns.cloudflare.com ⭐
NSjohn.ns.cloudflare.com
MXsitemail.everyone.net ⭐
TXTgoogle-site-verification=CJKeeExE2zfBw-3EqvP_gwaT5dUsGiJqIGODb2qd0XY
TXTv=spf1 include:clientemailspf.growthzoneapp.com include:spfc40.carrierzone.co...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.88.140, 172.67.180.124
IPv62606:4700:3030::6815:588c, 2606:4700:3035::ac43:b47c
SOAabby.ns.cloudflare.comdns@cloudflare.com serial=2398765449
WOT: SAFE (61/100)

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.88.140172.67.180.1242606:4700:3030::6815:588c2606:4700:3035::ac43:b47c50.194.31.46
●A104.21.88.1402026-02-18 → 2026-03-24 · 3 obs
○ 2016-05-09 08:13:08
● 2026-02-18 06:38:32
● 2026-03-24 14:42:04
●A172.67.180.1242026-02-18 → 2026-03-24 · 3 obs
○ 2016-05-09 08:13:08
● 2026-02-18 06:38:32
● 2026-03-24 14:42:04
●A2606:4700:3030::6815:588c2026-02-18 → 2026-03-24 · 3 obs
○ 2016-05-09 08:13:08
● 2026-02-18 06:38:32
● 2026-03-24 14:42:04
●A2606:4700:3035::ac43:b47c2026-02-18 → 2026-03-24 · 3 obs
○ 2016-05-09 08:13:08
● 2026-02-18 06:38:32
● 2026-03-24 14:42:04
○A50.194.31.462015-07-22 → 2016-05-09 · 4 obs
● 2015-07-22 01:30:06
● 2016-05-09 08:13:08
○ 2026-02-18 06:38:32
○ 2026-03-24 14:42:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netm.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...-
csfa.netabby.ns.cloudflare.com, john.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.100

NS records: abby.ns.cloudflare.com, john.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csfa.net (unsigned zone)

⏱️ Timing

Total: 514ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.88.140, 172.67.180.124
AAAA22606:4700:3030::6815:588c, 2606:4700:3035::ac43:b47c
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

hostmaster.csfa.net points to four IP numbers: 2606:4700:3030::6815:588c, 2606:4700:3035::ac43:b47c, 104.21.88.140 and 172.67.180.124.

Other host names, for instance nannic.eu, speeddating.eu, ufaems.com, www.nrw-hilft-haiti.de and flappropertylull.live share IP numbers with hostmaster.csfa.net.