sz-cs.com - robtex.com
sz-cs.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:4d79🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:cfaa🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.77.121Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.207.170🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | jarred.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c7e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jarred.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c37e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jarred.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:237e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jarred.ns.cloudflare.com | ||||||
| A | 108.162.195.126🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jarred.ns.cloudflare.com | ||||||
| A | 162.159.44.126Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jarred.ns.cloudflare.com | ||||||
| A | 172.64.35.126🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jarred.ns.cloudflare.com | ||||||
| NS | linda.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3afa🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0fa🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20fa🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 108.162.192.250🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 172.64.32.250🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 173.245.58.250🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.77.121, 172.67.207.170 | ||||||
| IPv6 | 2606:4700:3034::6815:4d79, 2606:4700:3036::ac43:cfaa | ||||||
| SOA | jarred.ns.cloudflare.comdns@cloudflare.com serial=2399213484 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Subdomains
mx.sz-cs.com |
Similar names
zs-cs.cn |
cs-sz.com |
zs-cs.net |
cs-zs.com.cn |
cs-zs.hu |
cs-zs.com |
z-css.com |
zs-cs.com |
zs-sc.com |
cz-ss.com |
sz-sc.com |
DNS History
9 records (6 active, 3 former)
○NS(root)2015-06-23 → 2017-01-01 · 4 obs
● 2017-01-01 08:05:58
○ 2018-08-16 03:11:00
○ 2026-03-23 11:01:16
●NSjarred.ns.cloudflare.com2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 11:01:16
●NSlinda.ns.cloudflare.com2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 11:01:16
○MXmx.zmail.net.cn2015-06-23 → 2017-01-01 · 4 obs
● 2017-01-01 08:05:58
○ 2018-08-16 03:11:00
○ 2026-03-23 11:01:16
●A104.21.77.1212026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 11:01:16
○A142.4.33.372015-06-23 → 2017-01-01 · 4 obs
● 2017-01-01 08:05:58
○ 2018-08-16 03:11:00
○ 2026-03-23 11:01:16
●A172.67.207.1702026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 11:01:16
●A2606:4700:3034::6815:4d792026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 11:01:16
●A2606:4700:3036::ac43:cfaa2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 11:01:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sz-cs.com | linda.ns.cloudflare.com, jarred.ns.cloudflare.com | 12 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: 69ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.77.121, 172.67.207.170 |
| AAAA | 2 | 2606:4700:3034::6815:4d79, 2606:4700:3036::ac43:cfaa |
| NS | 2 | jarred.ns.cloudflare.com, linda.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | jarred.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (linda.ns.cloudflare.com, linda.ns.cloudflare.com, linda.ns.cloudflare.com...)
Analysis
Hierarchy
sz-cs.com is the parent of mx.sz-cs.com.
IP Addresses
sz-cs.com points 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 including hochiminhcity.co.uk, infomedic.nl, surf-rodz.com, mx.sz-cs.com and longteng018.com share IP numbers with sz-cs.com.
Name Servers
sz-cs.com's delegation uses two name servers, jarred.ns.cloudflare.com and linda.ns.cloudflare.com.
sz-cs.com shares the same name server setup as other domains, for example sazone.net, nupenet.com, laywsc.com, xuanhuiduo.com and hdwuxie.com.
sz-cs.com at least partially shares name servers with other domains, including kairi.mobi, beflourg.irish, cdn77s.com, truyencotich.top and dizzy.com.br.
These name servers are commonly used with lindsey.ns.cloudflare.com and trevor.ns.cloudflare.com.
Host names with six IP numbers:
jarred.ns.cloudflare.com points to: 2606:4700:58::a29f:2c7e, 2803:f800:50::6ca2:c37e, 2a06:98c1:50::ac40:237e, 108.162.195.126, 162.159.44.126 and 172.64.35.126.
linda.ns.cloudflare.com points to: 2606:4700:50::adf5:3afa, 2803:f800:50::6ca2:c0fa, 2a06:98c1:50::ac40:20fa, 108.162.192.250, 172.64.32.250 and 173.245.58.250.