`stackhero.io`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3033::6815:1775^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:d2d4^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.23.117^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.210.212^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dina.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dina.ns.cloudflare.com`
		A	108.162.192.107^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
		A	172.64.32.107^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
		A	173.245.58.107^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dina.ns.cloudflare.com`
NS	`duke.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b6e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`duke.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`duke.ns.cloudflare.com`
		A	108.162.193.110^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	172.64.33.110^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	173.245.59.110^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.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=bEml2AS6Xf4WJM1DcdTSpr27UNVnJbnEoanEJDeWL80`
TXT	`protonmail-verification=921683bef81ce5193b68a5e464ff377aa5a671bb`
TXT	`v=spf1 a:iqxvin.stackhero-network.com include:_spf.protonmail.ch mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.23.117, 172.67.210.212
		IPv6 hints	2606:4700:3033::6815:1775, 2606:4700:3033::ac43:d2d4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com
SOA	`dina.ns.cloudflare.com`dns@cloudflare.com serial=2403566094

`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=1778340169

📈 Tranco rank: #131,568

PTR for

35.77.159.51.in-addr.arpa

Subdomains

gtw-g2tkvp.stackhero.io

dns-czp3l1.stackhero.io

gtw-7beijc.stackhero.io

gtw-ucl2o6.stackhero.io

a.stackhero.io

gtw-skuuuf.stackhero.io

vpn-fr-par-1.stackhero.io

dns-frepms.stackhero.io

gtw-j5f9bg.stackhero.io

dns-usw1za.stackhero.io

dns-ams1zm.stackhero.io

Same first word

stackhero.com

stackhero.io

Similar names

DNS History

10 records (8 active, 2 former)

●NSdina.ns.cloudflare.com2017-03-16 → 2026-05-09 · 2 obs

● 2017-03-16 14:32:52
● 2026-05-09 16:31:14

●NSduke.ns.cloudflare.com2017-03-16 → 2026-05-09 · 2 obs

● 2017-03-16 14:32:52
● 2026-05-09 16:31:14

●MXmail.protonmail.ch2026-02-15 → 2026-05-09 · 3 obs

○ 2017-08-26 21:53:18
● 2026-02-15 03:39:06
● 2026-05-09 16:31:14

○MXmails.bacto.net2017-03-16 → 2017-08-26 · 4 obs

● 2017-03-16 14:32:52
● 2017-08-26 21:53:18
○ 2026-02-15 03:39:06
○ 2026-05-09 16:31:14

●MXmailsec.protonmail.ch2026-02-15 → 2026-05-09 · 3 obs

○ 2017-08-26 21:53:18
● 2026-02-15 03:39:06
● 2026-05-09 16:31:14

●A104.21.23.1172026-02-15 → 2026-05-09 · 3 obs

○ 2017-08-26 21:53:18
● 2026-02-15 03:39:06
● 2026-05-09 16:31:14

●A172.67.210.2122026-02-15 → 2026-05-09 · 3 obs

○ 2017-08-26 21:53:18
● 2026-02-15 03:39:06
● 2026-05-09 16:31:14

●A2606:4700:3033::6815:17752026-02-15 → 2026-05-09 · 3 obs

○ 2017-08-26 21:53:18
● 2026-02-15 03:39:06
● 2026-05-09 16:31:14

●A2606:4700:3033::ac43:d2d42026-02-15 → 2026-05-09 · 3 obs

○ 2017-08-26 21:53:18
● 2026-02-15 03:39:06
● 2026-05-09 16:31:14

○A51.15.150.282017-03-16 → 2017-08-26 · 4 obs

● 2017-03-16 14:32:52
● 2017-08-26 21:53:18
○ 2026-02-15 03:39:06
○ 2026-05-09 16:31:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	c0.nic.io, a0.nic.io, a2.nic.io, b0.nic.io	-
stackhero.io	dina.ns.cloudflare.com, duke.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.107

NS records: dina.ns.cloudflare.com, duke.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 507ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.210.212, 104.21.23.117`
AAAA	2	`2606:4700:3033::ac43:d2d4, 2606:4700:3033::6815:1775`
NS	2	`dina.ns.cloudflare.com, duke.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	3	`google-site-verification=bEml2AS6Xf4WJM1, protonmail-verification=921683bef81ce519...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dina.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

stackhero.io is the parent of gtw-g2tkvp.stackhero.io, dns-czp3l1.stackhero.io, gtw-7beijc.stackhero.io, gtw-ucl2o6.stackhero.io, a.stackhero.io and a few other host names.

IP Addresses

Four IP numbers are pointed to by stackhero.io: 2606:4700:3033::6815:1775, 2606:4700:3033::ac43:d2d4, 104.21.23.117 and 172.67.210.212.

other host names including sloweb.org, metroparkhotelcebu.com, gdfuer.com, dhex.org and fzhmno.scf9.help share IP numbers with stackhero.io.

Name Servers

stackhero.io is delegated to two name servers dina.ns.cloudflare.com and duke.ns.cloudflare.com.

stackhero.io shares the same name server setup as other domains, for instance gsl.company, karaokedating.dk, summermanormemphis.com, adarorealty.com and planetice.hockey.

stackhero.io at least partially shares name servers with other domains, for instance vote-pendle.finance, bircon.se, 321webmaster.com, zynly.ru and cadx.be.

these name servers are commonly used alongside dom.ns.cloudflare.com.

Host names with six IP numbers:

Host name dina.ns.cloudflare.com points to: 2606:4700:50::adf5:3a6b, 2803:f800:50::6ca2:c06b, 2a06:98c1:50::ac40:206b, 108.162.192.107, 172.64.32.107 and 173.245.58.107.

Host name duke.ns.cloudflare.com points to: 2606:4700:58::adf5:3b6e, 2803:f800:50::6ca2:c16e, 2a06:98c1:50::ac40:216e, 108.162.193.110, 172.64.33.110 and 173.245.59.110.

Mail Servers

Two mail servers handle stackhero.io: mail.protonmail.ch and mailsec.protonmail.ch.

stackhero.io shares the same mail server setup as other domains, for instance s3t.eu, kloink.com, naglenet.org, x86assembly.xyz and bckr.me.

stackhero.io shares some mail servers with other domains, at least partially, for instance stormdrain.com, berny.sk, paspan.net, joke.la and aw3l.com.

Host names with three IPs:

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.

stackhero.io - robtex.com

stackhero.io

io

PTR for

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`stackhero.io`

`io`