`chat.supportbox.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:918b^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:51b3^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.179^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.145.139^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.179, 172.67.145.139
		IPv6 hints	2606:4700:3030::ac43:918b, 2606:4700:3034::6815:51b3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=172, name=cloudflare-ech.com

`supportbox.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:918b^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:51b3^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.179^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.145.139^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`darwin.ns.cloudflare.com` ⭐
NS	`marge.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
TXT	`google-site-verification=IrcEKU4F5nAQb4dF4Es9QGJfGqNCxG5S3NxcDOMDu6U`
TXT	`google-site-verification=RCYN5XyX7T5c5k6t-Liy9f5GZqVGPS1CEF7Mjg1HIpI`
TXT	`google-site-verification=WDOpWPh1hMAxcssbfNnGTc6njIep2qiKwIqqr1AFAV4`
TXT	`google-site-verification=vJbhVvk6chjDii_ZXAwfR6iy0Al_2-acy8zJrvVQZv4`
TXT	`v=spf1 mx a ip4:89.185.227.51 ip4:89.185.227.52 ip4:62.109.150.175 ip4:37.157...`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.179, 172.67.145.139
		IPv6 hints	2606:4700:3030::ac43:918b, 2606:4700:3034::6815:51b3
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=172, name=cloudflare-ech.com
SOA	`darwin.ns.cloudflare.com`dns@cloudflare.com serial=2403597488

📈 Tranco rank: #58,946

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DNS History

4 records (4 active, 0 former)

●A104.21.81.1792026-03-18 → 2026-05-11 · 2 obs

● 2026-03-18 10:28:18
● 2026-05-11 23:46:42

●A172.67.145.1392026-03-18 → 2026-05-11 · 2 obs

● 2026-03-18 10:28:18
● 2026-05-11 23:46:42

●A2606:4700:3030::ac43:918b2026-03-18 → 2026-05-11 · 2 obs

● 2026-03-18 10:28:18
● 2026-05-11 23:46:42

●A2606:4700:3034::6815:51b32026-03-18 → 2026-05-11 · 2 obs

● 2026-03-18 10:28:18
● 2026-05-11 23:46:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
supportbox.cz	marge.ns.cloudflare.com, darwin.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.151

NS records: marge.ns.cloudflare.com, darwin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for supportbox.cz (unsigned zone)

⏱️ Timing

Total: 1020ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.145.139, 104.21.81.179`
AAAA	2	`2606:4700:3034::6815:51b3, 2606:4700:3030::ac43:918b`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`

Analysis

IP Addresses

chat.supportbox.cz points to four IP numbers: 2606:4700:3030::ac43:918b, 2606:4700:3034::6815:51b3, 104.21.81.179 and 172.67.145.139.

For instance, other host names openai-proxy.liuguolin-20083177.workers.dev, supportbox.cz, ceyezevoexresources36.digital, mail.desi(0x736578)video.name and freespiritedsoaps.com share IP numbers with chat.supportbox.cz.

chat.supportbox.cz - robtex.com