`sz-kbt.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bc4d^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:20f2^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.32.242^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.77^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harvey.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c98^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c398^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harvey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2398^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harvey.ns.cloudflare.com`
		A	108.162.195.152^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	162.159.44.152^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
		A	172.64.35.152^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harvey.ns.cloudflare.com`
NS	`serena.ns.cloudflare.com`
		A	2606:4700:50::adf5:3adc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0dc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`serena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20dc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`serena.ns.cloudflare.com`
		A	108.162.192.220^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serena.ns.cloudflare.com`
		A	172.64.32.220^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serena.ns.cloudflare.com`
		A	173.245.58.220^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`serena.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.32.242, 172.67.188.77
		IPv6 hints	2606:4700:3030::ac43:bc4d, 2606:4700:3033::6815:20f2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=25, name=cloudflare-ech.com
SOA	`harvey.ns.cloudflare.com`dns@cloudflare.com serial=2411094217

`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.net`nstld@verisign-grs.com serial=1786038254

⚠️ On DNS blocklist: tif

Same first word

sz-kbt.com

DNS History

25 records (6 active, 19 former)

●NSharvey.ns.cloudflare.com2026-08-03 → 2026-08-06 · 3 obs

○ 2015-11-13 05:07:42
● 2026-08-03 17:28:32
● 2026-08-06 17:50:08

○NSns09.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns10.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns2.xinnet.cn2008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 07:34:26
○ 2015-08-11 16:16:20
○ 2026-08-06 17:50:08

○NSns2.xinnetdns.com2008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 07:34:26
○ 2015-08-11 16:16:20
○ 2026-08-06 17:50:08

○NSns21.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns22.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns37.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns38.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns45.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns46.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns55.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns56.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns58.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns61.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○NSns62.domaincontrol.com2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

●NSserena.ns.cloudflare.com2026-08-03 → 2026-08-06 · 3 obs

○ 2015-11-13 05:07:42
● 2026-08-03 17:28:32
● 2026-08-06 17:50:08

○MXmailstore1.secureserver.net2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○MXsmtp.secureserver.net2015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

●A104.21.32.2422026-08-03 → 2026-08-06 · 3 obs

○ 2015-11-13 05:07:42
● 2026-08-03 17:28:32
● 2026-08-06 17:50:08

●A172.67.188.772026-08-03 → 2026-08-06 · 3 obs

○ 2015-11-13 05:07:42
● 2026-08-03 17:28:32
● 2026-08-06 17:50:08

○A184.168.221.812015-08-11 → 2015-08-11 · 4 obs

○ 2008-03-09 07:34:26
● 2015-08-11 16:16:20
○ 2015-11-13 05:07:42
○ 2026-08-06 17:50:08

○A219.133.43.1982008-03-09 → 2008-03-09 · 3 obs

● 2008-03-09 07:34:26
○ 2015-08-11 16:16:20
○ 2026-08-06 17:50:08

●A2606:4700:3030::ac43:bc4d2026-08-03 → 2026-08-06 · 3 obs

○ 2015-11-13 05:07:42
● 2026-08-03 17:28:32
● 2026-08-06 17:50:08

●A2606:4700:3033::6815:20f22026-08-03 → 2026-08-06 · 3 obs

○ 2015-11-13 05:07:42
● 2026-08-03 17:28:32
● 2026-08-06 17:50:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net...	-
sz-kbt.com	serena.ns.cloudflare.com, harvey.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.220

NS records: serena.ns.cloudflare.com, harvey.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 146ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.32.242, 172.67.188.77`
AAAA	2	`2606:4700:3033::6815:20f2, 2606:4700:3030::ac43:bc4d`
NS	2	`harvey.ns.cloudflare.com, serena.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harvey.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

sz-kbt.com has four IP addresses: 104.21.32.242, 172.67.188.77, 2606:4700:3030::ac43:bc4d and 2606:4700:3033::6815:20f2.

sdlyit.net, 56r-bonus.top, hokstats.gg and two other host names share IP numbers with sz-kbt.com.

Name Servers

The NS records for sz-kbt.com delegate to harvey.ns.cloudflare.com and serena.ns.cloudflare.com.

sz-kbt.com uses the same name servers as several other domains — among them dlamcw.com, katarog.com, xjjt56.com and two more.

sz-kbt.com has at least partial name server overlap with other domains, such as zmarketingtech.com, kelseytimmerman.com, chengdekj.com and two others.

These name servers tend to appear together with the name servers laylah.ns.cloudflare.com, alexandra.ns.cloudflare.com and cora.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

harvey.ns.cloudflare.com maps to 108.162.195.152, 162.159.44.152, 172.64.35.152 and 3 additional IP addresses.

serena.ns.cloudflare.com maps to 108.162.192.220, 172.64.32.220, 173.245.58.220 and 3 additional IP addresses.

sz-kbt.com - robtex.com

sz-kbt.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`sz-kbt.com`

`com`