`21sft.com`

DNSSEC	⚠️ Not signed
NS	`alex.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b64^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c164^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alex.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2164^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alex.ns.cloudflare.com`
		A	108.162.193.100^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	172.64.33.100^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
		A	173.245.59.100^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alex.ns.cloudflare.com`
NS	`carioca.ns.cloudflare.com`
		A	2606:4700:50::a29f:2614^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c214^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carioca.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2214^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carioca.ns.cloudflare.com`
		A	108.162.194.20^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	162.159.38.20^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
		A	172.64.34.20^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carioca.ns.cloudflare.com`
TXT	`adobe-idp-site-verification=Vmaeg06btC5NRgssVKMSxflMK570W2eiPuAFjBZAuqPsQoq2R...`
TXT	`dropbox-domain-verification=1QS30W7xnLyzz`
SOA	`alex.ns.cloudflare.com`dns@cloudflare.com serial=2401381104

`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=1778397246

Subdomains

txv.21sft.com

Same first word

21sft.com

Similar names

fst21.com

DNS History

2 records (2 active, 0 former)

●NSalex.ns.cloudflare.com2026-05-08 → 2026-05-10 · 2 obs

● 2026-05-08 11:43:34
● 2026-05-10 07:16:48

●NScarioca.ns.cloudflare.com2026-05-08 → 2026-05-10 · 2 obs

● 2026-05-08 11:43:34
● 2026-05-10 07:16:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net...	-
21sft.com	alex.ns.cloudflare.com, carioca.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.100

NS records: alex.ns.cloudflare.com, carioca.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21sft.com (unsigned zone)

⏱️ Timing

Total: 136ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`alex.ns.cloudflare.com, carioca.ns.cloudflare.com`
TXT	2	`adobe-idp-site-verification=Vmaeg06btC5N, dropbox-domain-verification=1QS30W7xnLyz`
SOA	1	`alex.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of txv.21sft.com is 21sft.com.

Name Servers

21sft.com is delegated to two name servers: alex.ns.cloudflare.com and carioca.ns.cloudflare.com.

21sft.com uses the same name server setup as other domains, for instance berrychannel.com, itmika.com, piecreamy.com, everlumox.com and c3pocoot.com.

21sft.com shares name servers with other domains at least partially, for instance hyleet.education, selezen.net, 49530.cn, martijnbrant.net and spalniki.ru.

these name servers are often used together with the name servers joel.ns.cloudflare.com.

Host names with six IP numbers: alex.ns.cloudflare.com points to 2606:4700:58::adf5:3b64, 2803:f800:50::6ca2:c164, 2a06:98c1:50::ac40:2164, 108.162.193.100, 172.64.33.100 and 173.245.59.100; carioca.ns.cloudflare.com points to 2606:4700:50::a29f:2614, 2803:f800:50::6ca2:c214, 2a06:98c1:50::ac40:2214, 108.162.194.20, 162.159.38.20 and 172.64.34.20.

21sft.com - robtex.com

21sft.com

com