class.instructive.co - dns.ninja

class.instructive.co

DNSSEC⚠️ Not signed
A2606:4700:20::681a:a7e🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::681a:b7e🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::ac43:44f2🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.10.126Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.11.126Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.68.242🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.26.10.126, 104.26.11.126, 172.67.68.242
IPv6 hints2606:4700:20::681a:a7e, 2606:4700:20::681a:b7e, 2606:4700:20::ac43:44f2

instructive.co

DNSSEC⚠️ Not signed
A2606:4700:20::681a:a7e🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::681a:b7e🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:20::ac43:44f2🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.10.126Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.26.11.126Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.68.242🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdante.ns.cloudflare.com ⭐
NSlaylah.ns.cloudflare.com
MXsmtp.google.com ⭐
TXTgoogle-site-verification=znP6RcA89QW2b-NJN9SRC4GA3ZQjUkmmzccN242R-dI
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.26.10.126, 104.26.11.126, 172.67.68.242
IPv6 hints2606:4700:20::681a:a7e, 2606:4700:20::681a:b7e, 2606:4700:20::ac43:44f2
SOAdante.ns.cloudflare.comdns@cloudflare.com serial=2405950049

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DNS History

6 records (6 active, 0 former)

A104.26.10.126104.26.11.126172.67.68.2422606:4700:20::681a:a7e2606:4700:20::681a:b7e2606:4700:20::ac43:44f2
●A104.26.10.1262026-03-22 → 2026-07-28 · 2 obs
● 2026-03-22 20:39:18
● 2026-07-28 05:29:44
●A104.26.11.1262026-03-22 → 2026-07-28 · 2 obs
● 2026-03-22 20:39:18
● 2026-07-28 05:29:44
●A172.67.68.2422026-03-22 → 2026-07-28 · 2 obs
● 2026-03-22 20:39:18
● 2026-07-28 05:29:44
●A2606:4700:20::681a:a7e2026-03-22 → 2026-07-28 · 2 obs
● 2026-03-22 20:39:18
● 2026-07-28 05:29:44
●A2606:4700:20::681a:b7e2026-03-22 → 2026-07-28 · 2 obs
● 2026-03-22 20:39:18
● 2026-07-28 05:29:44
●A2606:4700:20::ac43:44f22026-03-22 → 2026-07-28 · 2 obs
● 2026-03-22 20:39:18
● 2026-07-28 05:29:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coa.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co-
instructive.colaylah.ns.cloudflare.com, dante.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.230

NS records: laylah.ns.cloudflare.com, dante.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instructive.co (unsigned zone)

⏱️ Timing

Total: 969ms | Queries: -

📄 Records

TypeCountSample Data
A3104.26.11.126, 104.26.10.126...
AAAA32606:4700:20::ac43:44f2, 2606:4700:20::681a:b7e...
HTTPS1{"priority":1,"target":".","alpn":["h2"]

Analysis

IP Addresses

With 6 IP addresses in total, class.instructive.co resolves to 104.26.10.126, 104.26.11.126, 172.67.68.242 and 3 other.

Among the host names that share IP numbers with class.instructive.co are www.actpass.com, mysport.com.tw, meta.reviews and two others.