`yellowpostman.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:5b07^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:a3fd^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.91.7^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.253^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cruz.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a58^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cruz.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c058^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cruz.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2058^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cruz.ns.cloudflare.com`
		A	108.162.192.88^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cruz.ns.cloudflare.com`
		A	172.64.32.88^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cruz.ns.cloudflare.com`
		A	173.245.58.88^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cruz.ns.cloudflare.com`
NS	`guy.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bad^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ad^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`guy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ad^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`guy.ns.cloudflare.com`
		A	108.162.193.173^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
		A	172.64.33.173^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
		A	173.245.59.173^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`guy.ns.cloudflare.com`
MX	`europa.firstmailchoice.com` ⭐
		A	107.189.29.165^{🇱🇺 FRANTECH107.189.28.0/23}
MX	`defiant.firstmailchoice.com`⁽¹⁰⁾
		A	141.11.234.75^{🇺🇸 ROYALE-AS141.11.234.0/24}
MX	`intrepid.firstmailchoice.com`⁽²⁰⁾
		A	64.44.177.125^{🇺🇸 NEXEON-164.44.176.0/21}
TXT	`v=spf1 include:mail1.zugzug.email ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.91.7, 172.67.163.253
		IPv6	2606:4700:3035::6815:5b07, 2606:4700:3037::ac43:a3fd
SOA	`cruz.ns.cloudflare.com`dns@cloudflare.com serial=2399278654

`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=1774818022

Same first word

yellowpostman.com

DNS History

13 records (9 active, 4 former)

●NScruz.ns.cloudflare.com2020-03-22 → 2026-03-29 · 2 obs

● 2020-03-22 00:39:38
● 2026-03-29 21:18:38

●NSguy.ns.cloudflare.com2020-03-22 → 2026-03-29 · 2 obs

● 2020-03-22 00:39:38
● 2026-03-29 21:18:38

●MXdefiant.firstmailchoice.com2020-03-22 → 2026-03-29 · 2 obs

● 2020-03-22 00:39:38
● 2026-03-29 21:18:38

●MXeuropa.firstmailchoice.com2026-03-16 → 2026-03-29 · 3 obs

○ 2020-03-22 00:39:38
● 2026-03-16 10:54:28
● 2026-03-29 21:18:38

●MXintrepid.firstmailchoice.com2020-03-22 → 2026-03-29 · 2 obs

● 2020-03-22 00:39:38
● 2026-03-29 21:18:38

●A104.21.91.72026-03-16 → 2026-03-29 · 3 obs

○ 2020-03-22 00:39:38
● 2026-03-16 10:54:28
● 2026-03-29 21:18:38

○A104.27.176.2302020-03-22 → 2020-03-22 · 3 obs

● 2020-03-22 00:39:38
○ 2026-03-16 10:54:28
○ 2026-03-29 21:18:38

○A104.27.177.2302020-03-22 → 2020-03-22 · 3 obs

● 2020-03-22 00:39:38
○ 2026-03-16 10:54:28
○ 2026-03-29 21:18:38

●A172.67.163.2532026-03-16 → 2026-03-29 · 3 obs

○ 2020-03-22 00:39:38
● 2026-03-16 10:54:28
● 2026-03-29 21:18:38

○A2606:4700:3033::681b:b1e62020-03-22 → 2020-03-22 · 3 obs

● 2020-03-22 00:39:38
○ 2026-03-16 10:54:28
○ 2026-03-29 21:18:38

●A2606:4700:3035::6815:5b072026-03-16 → 2026-03-29 · 3 obs

○ 2020-03-22 00:39:38
● 2026-03-16 10:54:28
● 2026-03-29 21:18:38

○A2606:4700:3036::681b:b0e62020-03-22 → 2020-03-22 · 3 obs

● 2020-03-22 00:39:38
○ 2026-03-16 10:54:28
○ 2026-03-29 21:18:38

●A2606:4700:3037::ac43:a3fd2026-03-16 → 2026-03-29 · 3 obs

○ 2020-03-22 00:39:38
● 2026-03-16 10:54:28
● 2026-03-29 21:18:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
yellowpostman.com	cruz.ns.cloudflare.com, guy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.173

NS records: cruz.ns.cloudflare.com, guy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for yellowpostman.com (unsigned zone)

⏱️ Timing

Total: 180ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.91.7, 172.67.163.253`
AAAA	2	`2606:4700:3035::6815:5b07, 2606:4700:3037::ac43:a3fd`
NS	2	`cruz.ns.cloudflare.com, guy.ns.cloudflare.com`
MX	3	`defiant.firstmailchoice.com (pri: 10), intrepid.firstmailchoice.com (pri: 20)...`
TXT	1	`v=spf1 include:mail1.zugzug.email ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cruz.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

yellowpostman.com points to four IP numbers: 2606:4700:3035::6815:5b07, 2606:4700:3037::ac43:a3fd, 104.21.91.7 and 172.67.163.253.

Other host names, for instance xeontechnology.ltd, irenemakosso.com, etxartpanno.com, analytics.editcookie.com and multiversecosmology.com share IP numbers with yellowpostman.com.

Name Servers

Delegation for yellowpostman.com rests with two name servers, cruz.ns.cloudflare.com and guy.ns.cloudflare.com.

yellowpostman.com shares the same name server setup as other domains, including meerlingendag.nl, bongs4you.com, agsl.co.in, amishcountryshowcase.com and fcminformer.org.

yellowpostman.com at least partially shares name servers with other domains, for instance aldalandscapes.co.uk, sv66.business, net1000.net, 123turf.fr and senior4d61.shop.