`send16.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:12f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8087^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.47^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.135^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`hugh.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b75^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c175^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`hugh.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2175^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`hugh.ns.cloudflare.com`
		A	108.162.193.117^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	172.64.33.117^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
		A	173.245.59.117^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`hugh.ns.cloudflare.com`
NS	`izabella.ns.cloudflare.com`
		A	2606:4700:50::a29f:262e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c22e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`izabella.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:222e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`izabella.ns.cloudflare.com`
		A	108.162.194.46^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
		A	162.159.38.46^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
		A	172.64.34.46^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`izabella.ns.cloudflare.com`
MX	`mx.send16.com` ⭐
		A	178.63.139.58^{🇩🇪 Hetzner178.63.0.0/16 HETZNER-RZ-FKS-BLK2}
			PTR	`smtp.send16.com`
TXT	`postal-verification iUH305wwEMWPNbKvlmQFjg97q4VqR66t`
TXT	`v=spf1 a mx ip4:178.63.139.58 ip4:178.63.139.49 ip4:178.63.139.50 ip4:178.63....`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.47, 172.67.128.135
		IPv6 hints	2606:4700:3033::6815:12f, 2606:4700:3037::ac43:8087
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com
SOA	`hugh.ns.cloudflare.com`dns@cloudflare.com serial=2401232439

`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=1778876351

Subdomains

mx.send16.com

smtp.send16.com

Same first word

send16.com

Similar names

des16n.com

DNS History

10 records (7 active, 3 former)

○NSdns19.hichina.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 07:21:08
○ 2026-05-15 20:42:06
○ 2026-05-15 20:42:14

○NSdns20.hichina.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 07:21:08
○ 2026-05-15 20:42:06
○ 2026-05-15 20:42:14

●NShugh.ns.cloudflare.com2026-05-15 → 2026-05-15 · 3 obs

○ 2019-12-15 07:21:08
● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

●NSizabella.ns.cloudflare.com2026-05-15 → 2026-05-15 · 3 obs

○ 2019-12-15 07:21:08
● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

●MXmx.send16.com2026-05-15 → 2026-05-15 · 2 obs

● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

●A104.21.1.472026-05-15 → 2026-05-15 · 3 obs

○ 2019-12-15 07:21:08
● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

●A172.67.128.1352026-05-15 → 2026-05-15 · 3 obs

○ 2019-12-15 07:21:08
● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

●A2606:4700:3033::6815:12f2026-05-15 → 2026-05-15 · 3 obs

○ 2019-12-15 07:21:08
● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

●A2606:4700:3037::ac43:80872026-05-15 → 2026-05-15 · 3 obs

○ 2019-12-15 07:21:08
● 2026-05-15 20:42:06
● 2026-05-15 20:42:14

○A35.241.57.732019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 07:21:08
○ 2026-05-15 20:42:06
○ 2026-05-15 20:42:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
send16.com	hugh.ns.cloudflare.com, izabella.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.46

NS records: hugh.ns.cloudflare.com, izabella.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for send16.com (unsigned zone)

⏱️ Timing

Total: 370ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.47, 172.67.128.135`
AAAA	2	`2606:4700:3037::ac43:8087, 2606:4700:3033::6815:12f`
NS	2	`hugh.ns.cloudflare.com, izabella.ns.cloudflare.com`
MX	1	`mx.send16.com (pri: 10)`
TXT	2	`postal-verification iUH305wwEMWPNbKvlmQF, v=spf1 a mx ip4:178.63.139.58 ip4:178.63`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`hugh.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

send16.com is a parent of mx.send16.com and smtp.send16.com.

IP Addresses

Four IP numbers are pointed to by send16.com: 2606:4700:3033::6815:12f, 2606:4700:3037::ac43:8087, 104.21.1.47 and 172.67.128.135.

other host names including mx.brandsmith.us, pridelands.org.nz, uclubcincinnati.com, melbournetilesolutions.com.au and 0769sy.net share IP numbers with send16.com.

Name Servers

send16.com is delegated to two name servers hugh.ns.cloudflare.com and izabella.ns.cloudflare.com.

send16.com shares the same name server setup as other domains, for instance go-ve.com, golfingfocus.com, guruztech.com, fullpricehomebuyers.com and blacksprut.ink.

send16.com at least partially shares name servers with other domains, for instance todcan.com, cemhk.org.hk, bih.us.com, aluspay.com and regalia-residence.com.

Host names with six IP numbers:

Host name hugh.ns.cloudflare.com points to: 2606:4700:58::adf5:3b75, 2803:f800:50::6ca2:c175, 2a06:98c1:50::ac40:2175, 108.162.193.117, 172.64.33.117 and 173.245.59.117.

Host name izabella.ns.cloudflare.com points to: 2606:4700:50::a29f:262e, 2803:f800:50::6ca2:c22e, 2a06:98c1:50::ac40:222e, 108.162.194.46, 162.159.38.46 and 172.64.34.46.

Mail Servers

send16.com is handled by a single mail server, mx.send16.com.

send16.com shares the same mail server setup as other domains, for instance claudecommunity.com.au.

mx.send16.com resolves to IP 178.63.139.58.

send16.com - robtex.com

send16.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`send16.com`

`com`