teachhero.dev - dns.ninja

`teachhero.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:dc5b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:568a^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.86.138^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.220.91^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`leo.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cf1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3f1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23f1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leo.ns.cloudflare.com`
		A	108.162.195.241^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
		A	162.159.44.241^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
		A	172.64.35.241^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leo.ns.cloudflare.com`
NS	`tia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ae5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0e5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20e5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tia.ns.cloudflare.com`
		A	108.162.192.229^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
		A	172.64.32.229^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
		A	173.245.58.229^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tia.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.86.138, 172.67.220.91
		IPv6 hints	2606:4700:3031::ac43:dc5b, 2606:4700:3037::6815:568a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=156, name=cloudflare-ech.com
SOA	`leo.ns.cloudflare.com`dns@cloudflare.com serial=2406311927

`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

teachhero.dev

Similar names

echoheart.co

heartecho.email

hetrochea.ru

theroache.com

eachother.ru

eachother.com

ecohearth.com

eachother.co.jp

rechothea.ru

eachother.org.uk

earthecho.org

thehoreca.com

DNS History

10 records (6 active, 4 former)

●NSleo.ns.cloudflare.com2026-03-02 → 2026-06-17 · 2 obs

● 2026-03-02 04:08:38
● 2026-06-17 20:35:20

●NStia.ns.cloudflare.com2026-03-02 → 2026-06-17 · 2 obs

● 2026-03-02 04:08:38
● 2026-06-17 20:35:20

●A104.21.86.1382026-03-02 → 2026-06-17 · 5 obs

● 2026-03-02 04:08:38
● 2026-06-15 10:16:22
○ 2026-06-15 17:49:52
● 2026-06-15 20:26:44
● 2026-06-17 20:35:20

●A172.67.220.912026-03-02 → 2026-06-17 · 5 obs

● 2026-03-02 04:08:38
● 2026-06-15 10:16:22
○ 2026-06-15 17:49:52
● 2026-06-15 20:26:44
● 2026-06-17 20:35:20

○A188.114.96.02026-06-15 → 2026-06-15 · 4 obs

○ 2026-06-15 10:16:22
● 2026-06-15 17:49:52
○ 2026-06-15 20:26:44
○ 2026-06-17 20:35:20

○A188.114.97.02026-06-15 → 2026-06-15 · 4 obs

○ 2026-06-15 10:16:22
● 2026-06-15 17:49:52
○ 2026-06-15 20:26:44
○ 2026-06-17 20:35:20

●A2606:4700:3031::ac43:dc5b2026-03-02 → 2026-06-17 · 5 obs

● 2026-03-02 04:08:38
● 2026-06-15 10:16:22
○ 2026-06-15 17:49:52
● 2026-06-15 20:26:44
● 2026-06-17 20:35:20

●A2606:4700:3037::6815:568a2026-03-02 → 2026-06-17 · 5 obs

● 2026-03-02 04:08:38
● 2026-06-15 10:16:22
○ 2026-06-15 17:49:52
● 2026-06-15 20:26:44
● 2026-06-17 20:35:20

○A2a06:98c1:3120::2026-06-15 → 2026-06-15 · 4 obs

○ 2026-06-15 10:16:22
● 2026-06-15 17:49:52
○ 2026-06-15 20:26:44
○ 2026-06-17 20:35:20

○A2a06:98c1:3121::2026-06-15 → 2026-06-15 · 4 obs

○ 2026-06-15 10:16:22
● 2026-06-15 17:49:52
○ 2026-06-15 20:26:44
○ 2026-06-17 20:35:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	10 records
teachhero.dev	tia.ns.cloudflare.com, leo.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.241

NS records: tia.ns.cloudflare.com, leo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachhero.dev (unsigned zone)

⏱️ Timing

Total: 633ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.220.91, 104.21.86.138`
AAAA	2	`2606:4700:3031::ac43:dc5b, 2606:4700:3037::6815:568a`
NS	2	`leo.ns.cloudflare.com, tia.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`leo.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

IP Addresses

teachhero.dev points to the four IP addresses 104.21.86.138, 172.67.220.91, 2606:4700:3031::ac43:dc5b and 2606:4700:3037::6815:568a.

Two other host names, along with suju-vom.site, dynetesting.com and 786advisory.com, also share IP numbers with teachhero.dev.

Name Servers

teachhero.dev has two authoritative name servers — leo.ns.cloudflare.com and tia.ns.cloudflare.com.

teachhero.dev shares its NS records with other domains, for example homeplateproject.com, formatandreload.com, 2unblocksites.com and two others.

At least some of teachhero.dev's name servers are shared with other domains, for example sens.company, cpaplus.co.il, meteora.gold and two more.

These name servers tend to be deployed in combination with the name servers erin.ns.cloudflare.com and lorna.ns.cloudflare.com.

DNS names with 6 IP addresses:

leo.ns.cloudflare.com points to 108.162.195.241, 162.159.44.241, 172.64.35.241 and 3 other IP addresses.

tia.ns.cloudflare.com points to 108.162.192.229, 172.64.32.229, 173.245.58.229 and 3 other IP addresses.