mx.sz-cs.com - robtex.com

mx.sz-cs.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:4d79🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:cfaa🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.77.121Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.207.170🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.77.121, 172.67.207.170
IPv62606:4700:3034::6815:4d79, 2606:4700:3036::ac43:cfaa

sz-cs.com

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:4d79🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:cfaa🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.77.121Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.207.170🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjarred.ns.cloudflare.com ⭐
NSlinda.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.77.121, 172.67.207.170
IPv62606:4700:3034::6815:4d79, 2606:4700:3036::ac43:cfaa
SOAjarred.ns.cloudflare.comdns@cloudflare.com serial=2399213484

Same first word

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DNS History

5 records (4 active, 1 former)

200920112013201520172019202120232025A104.21.77.121172.67.207.1702606:4700:3034::6815:4d792606:4700:3036::ac43:cfaa211.152.33.79
●A104.21.77.1212026-03-11 → 2026-03-23 · 3 obs
○ 2015-10-16 12:43:42
● 2026-03-11 04:04:54
● 2026-03-23 11:02:00
●A172.67.207.1702026-03-11 → 2026-03-23 · 3 obs
○ 2015-10-16 12:43:42
● 2026-03-11 04:04:54
● 2026-03-23 11:02:00
○A211.152.33.792008-03-19 → 2008-03-19 · 3 obs
● 2008-03-19 18:23:30
○ 2015-10-16 12:43:42
○ 2026-03-23 11:02:00
●A2606:4700:3034::6815:4d792026-03-11 → 2026-03-23 · 3 obs
○ 2015-10-16 12:43:42
● 2026-03-11 04:04:54
● 2026-03-23 11:02:00
●A2606:4700:3036::ac43:cfaa2026-03-11 → 2026-03-23 · 3 obs
○ 2015-10-16 12:43:42
● 2026-03-11 04:04:54
● 2026-03-23 11:02:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
sz-cs.comlinda.ns.cloudflare.com, jarred.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.126

NS records: linda.ns.cloudflare.com, jarred.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sz-cs.com (unsigned zone)

⏱️ Timing

Total: 111ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.77.121, 172.67.207.170
AAAA22606:4700:3034::6815:4d79, 2606:4700:3036::ac43:cfaa
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mx.sz-cs.com maps to four IP numbers: 2606:4700:3034::6815:4d79, 2606:4700:3036::ac43:cfaa, 104.21.77.121 and 172.67.207.170.

other host names include xh1188.com.flfac.hshhotel.com, gorodstar.ru, dafuchuju.com, xianmuyu.com and termedellenazioni.it; they share IP numbers with mx.sz-cs.com.