`certifiedbrief.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:b96a^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:4c14^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.76.20^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.185.106^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`keyla.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26aa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2aa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`keyla.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22aa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`keyla.ns.cloudflare.com`
		A	108.162.194.170^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	162.159.38.170^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
		A	172.64.34.170^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`keyla.ns.cloudflare.com`
NS	`pedro.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cb7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3b7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`pedro.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23b7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`pedro.ns.cloudflare.com`
		A	108.162.195.183^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
		A	162.159.44.183^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
		A	172.64.35.183^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`pedro.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.76.20, 172.67.185.106
		IPv6	2606:4700:3033::ac43:b96a, 2606:4700:3035::6815:4c14
SOA	`keyla.ns.cloudflare.com`dns@cloudflare.com serial=2398058479

`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=1774801612

rank #150359 globally
rank #63807 in the tld
📈 Tranco rank: #846,770

Same first word

certifiedbrief.com

DNS History

6 records (6 active, 0 former)

●NSkeyla.ns.cloudflare.com2026-03-24 → 2026-03-29 · 2 obs

● 2026-03-24 12:38:48
● 2026-03-29 16:57:08

●NSpedro.ns.cloudflare.com2026-03-24 → 2026-03-29 · 2 obs

● 2026-03-24 12:38:48
● 2026-03-29 16:57:08

●A104.21.76.202026-03-24 → 2026-03-29 · 2 obs

● 2026-03-24 12:38:48
● 2026-03-29 16:57:08

●A172.67.185.1062026-03-24 → 2026-03-29 · 2 obs

● 2026-03-24 12:38:48
● 2026-03-29 16:57:08

●A2606:4700:3033::ac43:b96a2026-03-24 → 2026-03-29 · 2 obs

● 2026-03-24 12:38:48
● 2026-03-29 16:57:08

●A2606:4700:3035::6815:4c142026-03-24 → 2026-03-29 · 2 obs

● 2026-03-24 12:38:48
● 2026-03-29 16:57:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certifiedbrief.com	keyla.ns.cloudflare.com, pedro.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.170

NS records: keyla.ns.cloudflare.com, pedro.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certifiedbrief.com (unsigned zone)

⏱️ Timing

Total: 151ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.76.20, 172.67.185.106`
AAAA	2	`2606:4700:3033::ac43:b96a, 2606:4700:3035::6815:4c14`
NS	2	`keyla.ns.cloudflare.com, pedro.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`keyla.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

certifiedbrief.com maps to four IP numbers: 2606:4700:3033::ac43:b96a, 2606:4700:3035::6815:4c14, 104.21.76.20 and 172.67.185.106.

Other host names, for instance fupping.com, auto-rental.com.cn, tr.uni24k.com, baileyw.com and api.magicformbuilder.com share IP numbers with certifiedbrief.com.

Name Servers

Two name servers keyla.ns.cloudflare.com and pedro.ns.cloudflare.com handle delegation for certifiedbrief.com.

certifiedbrief.com uses the same name server setup as other domains, for example 3361-processing-payment.top, fortuno.app, rozanehonline.com, waltmann.it and cornerowner.com.

certifiedbrief.com partially shares name servers with other domains; examples include tommackie.com, 91baomi.com, yatsukatoru.com, yangonwebhost.com and dubuquegolf.org.

These name servers are often used with the name servers fatima.ns.cloudflare.com and nero.ns.cloudflare.com.

Host names with six IP numbers: keyla.ns.cloudflare.com points to: 2606:4700:50::a29f:26aa, 2803:f800:50::6ca2:c2aa, 2a06:98c1:50::ac40:22aa, 108.162.194.170, 162.159.38.170 and 172.64.34.170; pedro.ns.cloudflare.com points to: 2606:4700:58::a29f:2cb7, 2803:f800:50::6ca2:c3b7, 2a06:98c1:50::ac40:23b7, 108.162.195.183, 162.159.44.183 and 172.64.35.183.

certifiedbrief.com - robtex.com