for.zeronoiseclassroom.com - robtex.com

for.zeronoiseclassroom.com

DNSSEC⚠️ Not signed
A104.21.87.187Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.156🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.87.187, 172.67.145.156
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=243, name=cloudflare-ech.com

zeronoiseclassroom.com

DNSSEC⚠️ Not signed
A104.21.87.187Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.156🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadel.ns.cloudflare.com ⭐
NSned.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.87.187, 172.67.145.156
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=243, name=cloudflare-ech.com
SOAadel.ns.cloudflare.comdns@cloudflare.com serial=2406051912
⚠️ On DNS blocklist: tif
⚠️ On DNS blocklist: tif

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DNS History

2 records (2 active, 0 former)

A104.21.87.187172.67.145.156
●A104.21.87.1872026-04-19 → 2026-06-28 · 2 obs
● 2026-04-19 23:57:32
● 2026-06-28 17:01:38
●A172.67.145.1562026-04-19 → 2026-06-28 · 2 obs
● 2026-04-19 23:57:32
● 2026-06-28 17:01:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...-
zeronoiseclassroom.comadel.ns.cloudflare.com, ned.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.210

NS records: adel.ns.cloudflare.com, ned.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zeronoiseclassroom.com (unsigned zone)

⏱️ Timing

Total: 283ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.145.156, 104.21.87.187
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (adel.ns.cloudflare.com, adel.ns.cloudflare.com, adel.ns.cloudflare.com...)

Analysis

IP Addresses

for.zeronoiseclassroom.com directs to two IP numbers, 104.21.87.187 and 172.67.145.156

Two other host names, along with beovax.co.uk, mail.songfish.com.sg and unmergestack.digital, also share IP numbers with for.zeronoiseclassroom.com.