`sindex.dev`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3031::6815:2b5c^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:b196^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.92^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.177.150^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bob.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b68^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c168^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2168^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bob.ns.cloudflare.com`
		A	108.162.193.104^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	172.64.33.104^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
		A	173.245.59.104^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bob.ns.cloudflare.com`
NS	`deb.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a5c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c05c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`deb.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:205c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`deb.ns.cloudflare.com`
		A	108.162.192.92^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
		A	172.64.32.92^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
		A	173.245.58.92^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`google-site-verification=tffgIH8ATVT_Lfcz7U1K0sV7xqEmvvItollWdSKSTPg`
TXT	`protonmail-verification=8def1c1c46520e0b0a12abfe526e47b4f2424094`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.92, 172.67.177.150
		IPv6 hints	2606:4700:3031::6815:2b5c, 2606:4700:3031::ac43:b196
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=0, name=cloudflare-ech.com
SOA	`bob.ns.cloudflare.com`dns@cloudflare.com serial=2410683897

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

🔒 HSTS Preload (+subdomains)

Same first word

sindex.rs

sindex.nl

sindex.org

sindex.biz

sindex.dev

sindex.cz

sindex.es

sindex.ch

sindex.co

sindex.com

sindex.it

sindex.ro

sindex.net

sindex.com.br

sindex.ru

sindex.eu

sindex.info

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indexs.com

sendix.com

xisend.com

sendix.net

desinx.com

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indexs.ru

dsinex.com

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ind(0x736578).net

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(0x736578)ind.mobi

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xendis.com

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indexs.cloud

indexs.de

indxes.com

sixden.com

sendix.co

ind(0x736578).com

ixsend.com

sendix.fr

dixsen.com

indexs.net

DNS History

14 records (8 active, 6 former)

●NSbob.ns.cloudflare.com2026-05-15 → 2026-08-03 · 2 obs

● 2026-05-15 08:45:10
● 2026-08-03 08:53:44

●NSdeb.ns.cloudflare.com2026-05-15 → 2026-08-03 · 2 obs

● 2026-05-15 08:45:10
● 2026-08-03 08:53:44

●MXmail.protonmail.ch2026-05-15 → 2026-08-03 · 2 obs

● 2026-05-15 08:45:10
● 2026-08-03 08:53:44

●MXmailsec.protonmail.ch2026-05-15 → 2026-08-03 · 2 obs

● 2026-05-15 08:45:10
● 2026-08-03 08:53:44

●A104.21.43.922026-05-15 → 2026-08-03 · 3 obs

● 2026-05-15 08:45:10
○ 2026-08-03 07:32:48
● 2026-08-03 08:53:44

●A172.67.177.1502026-05-15 → 2026-08-03 · 3 obs

● 2026-05-15 08:45:10
○ 2026-08-03 07:32:48
● 2026-08-03 08:53:44

○A188.114.96.02026-08-03 → 2026-08-03 · 3 obs

○ 2026-05-15 08:45:10
● 2026-08-03 07:32:48
○ 2026-08-03 08:53:44

○A188.114.97.02026-08-03 → 2026-08-03 · 3 obs

○ 2026-05-15 08:45:10
● 2026-08-03 07:32:48
○ 2026-08-03 08:53:44

○A2606:4700:3030::ac43:b1962026-05-15 → 2026-05-15 · 3 obs

● 2026-05-15 08:45:10
○ 2026-08-03 07:32:48
○ 2026-08-03 08:53:44

●A2606:4700:3031::6815:2b5c2026-08-03 → 2026-08-03 · 2 obs

○ 2026-08-03 07:32:48
● 2026-08-03 08:53:44

●A2606:4700:3031::ac43:b1962026-08-03 → 2026-08-03 · 2 obs

○ 2026-08-03 07:32:48
● 2026-08-03 08:53:44

○A2606:4700:3033::6815:2b5c2026-05-15 → 2026-05-15 · 3 obs

● 2026-05-15 08:45:10
○ 2026-08-03 07:32:48
○ 2026-08-03 08:53:44

○A2a06:98c1:3120::2026-08-03 → 2026-08-03 · 3 obs

○ 2026-05-15 08:45:10
● 2026-08-03 07:32:48
○ 2026-08-03 08:53:44

○A2a06:98c1:3121::2026-08-03 → 2026-08-03 · 3 obs

○ 2026-05-15 08:45:10
● 2026-08-03 07:32:48
○ 2026-08-03 08:53:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...	-
sindex.dev	deb.ns.cloudflare.com, bob.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.104

NS records: deb.ns.cloudflare.com, bob.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 698ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.177.150, 104.21.43.92`
AAAA	2	`2606:4700:3031::6815:2b5c, 2606:4700:3031::ac43:b196`
NS	2	`bob.ns.cloudflare.com, deb.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	3	`google-site-verification=tffgIH8ATVT_Lfc, protonmail-verification=8def1c1c46520e0b...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bob.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

sindex.dev points to the four IP addresses 104.21.43.92, 172.67.177.150, 2606:4700:3031::6815:2b5c and 2606:4700:3031::ac43:b196.

chyip.biz, www.igamei.com, flexapi.dk plus two other host names have IP numbers in common with sindex.dev.

Name Servers

The NS records for sindex.dev delegate to bob.ns.cloudflare.com and deb.ns.cloudflare.com.

The name server configuration of sindex.dev is shared with other domains, for instance dvice.dk, supergleam.net, tallman.org and two others.

There is at least partial name server overlap between sindex.dev and other domains — sisedusb.my, natsoftacademy.com, beruflic.com and two more among them.

These name servers are routinely deployed together with the name servers nolan.ns.cloudflare.com.

Hosts with 6 IP addresses each:

bob.ns.cloudflare.com maps to 108.162.193.104, 172.64.33.104, 173.245.59.104 and 3 additional IP addresses.

deb.ns.cloudflare.com maps to 108.162.192.92, 172.64.32.92, 173.245.58.92 and 3 additional IP addresses.

Mail Servers

sindex.dev uses two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

The mail server setup of sindex.dev matches that of other domains such as mrcc.com, tla.technology, affiliatem.com and two others.

At least some of the mail servers used by sindex.dev are shared with other domains: mailly.de, forwardboomer.com, boymanjor.com and two others among them.

mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128. mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129. Both hosts resolve to three IP numbers.

sindex.dev - robtex.com

sindex.dev

dev

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`sindex.dev`

`dev`