`sendinbox.io`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:9ba2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:48dc^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.72.220^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.162^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arvind.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ce3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3e3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arvind.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23e3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arvind.ns.cloudflare.com`
		A	108.162.195.227^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
		A	162.159.44.227^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
		A	172.64.35.227^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arvind.ns.cloudflare.com`
NS	`grace.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c09f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`grace.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:209f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`grace.ns.cloudflare.com`
		A	108.162.192.159^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
		A	172.64.32.159^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
		A	173.245.58.159^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grace.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`google-site-verification=fqabyIEYz__-QEZE6C3pYrggJHfY0cYyumZARvNZeFY`
TXT	`v=spf1 +a +mx +ip4:51.195.107.13 include:_spf.google.com include:sender.zoho-...`
TXT	`zoho-verification=zb17934560.zmverify.zoho.in`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.72.220, 172.67.155.162
		IPv6 hints	2606:4700:3030::ac43:9ba2, 2606:4700:3032::6815:48dc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=16, name=cloudflare-ech.com
SOA	`arvind.ns.cloudflare.com`dns@cloudflare.com serial=2410952072

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1785737048

⚠️ On DNS blocklist: tif

Same first word

sendinbox.com

sendinbox.xyz

sendinbox.io

Similar names

bondexins.com

inboxsend.com

inboxsend.ir

bensonixd.com

dennisbox.com

bendixson.com

DNS History

13 records (11 active, 2 former)

●NSarvind.ns.cloudflare.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●NSgrace.ns.cloudflare.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●MXalt1.aspmx.l.google.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●MXalt2.aspmx.l.google.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●MXalt3.aspmx.l.google.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●MXalt4.aspmx.l.google.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●MXaspmx.l.google.com2026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●A104.21.72.2202026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●A172.67.155.1622026-04-22 → 2026-08-03 · 2 obs

● 2026-04-22 01:56:10
● 2026-08-03 07:06:50

●A2606:4700:3030::ac43:9ba22026-07-18 → 2026-08-03 · 3 obs

○ 2026-04-22 01:56:10
● 2026-07-18 03:03:58
● 2026-08-03 07:06:50

○A2606:4700:3031::6815:48dc2026-04-22 → 2026-04-22 · 3 obs

● 2026-04-22 01:56:10
○ 2026-07-18 03:03:58
○ 2026-08-03 07:06:50

●A2606:4700:3032::6815:48dc2026-07-18 → 2026-08-03 · 3 obs

○ 2026-04-22 01:56:10
● 2026-07-18 03:03:58
● 2026-08-03 07:06:50

○A2606:4700:3037::ac43:9ba22026-04-22 → 2026-04-22 · 3 obs

● 2026-04-22 01:56:10
○ 2026-07-18 03:03:58
○ 2026-08-03 07:06:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
sendinbox.io	arvind.ns.cloudflare.com, grace.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.159

NS records: arvind.ns.cloudflare.com, grace.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sendinbox.io (unsigned zone)

⏱️ Timing

Total: 508ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.72.220, 172.67.155.162`
AAAA	2	`2606:4700:3032::6815:48dc, 2606:4700:3030::ac43:9ba2`
NS	2	`arvind.ns.cloudflare.com, grace.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	3	`google-site-verification=fqabyIEYz__-QEZ, v=spf1 +a +mx +ip4:51.195.107.13 include...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arvind.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

sendinbox.io directs to four IP numbers, which are 104.21.72.220, 172.67.155.162, 2606:4700:3030::ac43:9ba2 and 2606:4700:3032::6815:48dc.

altijara.net, labfitness.com, workaround.nyc plus two other host names have IP numbers in common with sendinbox.io.

Name Servers

The NS records for sendinbox.io delegate to arvind.ns.cloudflare.com and grace.ns.cloudflare.com.

The name server configuration of sendinbox.io is shared with other domains, for instance parfummagic.ru, shoroc.com, valcoop.com.mx and two others.

The name servers of sendinbox.io overlap at least partially with those of other domains — among them ag0609.com, bayraksiparis.com, aquagrand.in and two more.

These name servers tend to appear together with the name servers meadow.ns.cloudflare.com, austin.ns.cloudflare.com and zelda.ns.cloudflare.com, plus two others.

Hosts with 6 IP addresses each:

arvind.ns.cloudflare.com maps to 108.162.195.227, 162.159.44.227, 172.64.35.227 and 3 additional IP addresses.

grace.ns.cloudflare.com maps to 108.162.192.159, 172.64.32.159, 173.245.58.159 and 3 additional IP addresses.

Mail Servers

Five mail servers handle sendinbox.io: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by sendinbox.io are shared with other domains: hidane.info, www.oxidian.ch, hjmedicalgroup.com and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

The A records for aspmx.l.google.com return 172.253.115.26 and 2607:f8b0:4004:c1b::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.26 and 2800:3f0:4003:c0f::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1a.

The A records for alt4.aspmx.l.google.com return 172.253.157.26 and 2a00:1450:400c:c23::1b.