www.tech21.com.cn - robtex.com

www.tech21.com.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9024🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:371a🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.55.26Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.36🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.55.26, 172.67.144.36
IPv6 hints2606:4700:3030::ac43:9024, 2606:4700:3033::6815:371a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=73, name=cloudflare-ech.com

tech21.com.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9024🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:371a🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.55.26Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.144.36🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnelci.ns.cloudflare.com ⭐
NSyoxall.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.55.26, 172.67.144.36
IPv6 hints2606:4700:3030::ac43:9024, 2606:4700:3033::6815:371a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=73, name=cloudflare-ech.com
SOAnelci.ns.cloudflare.comdns@cloudflare.com serial=2400835838

Previously NS for

tech21.com.cn

Same first word

www.supply
www.jx.cn
www.homelinux.com
www.gob.do
www.pisz.pl
www.hopto.org
www.blogspot.co.za
www.0g0.jp
www.co.jp
www.bitbucket.io
www.bible
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www.skype
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www.gloomy.jp
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www.pc.pl
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www.gov.mv
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www.adobeaemcloud.com
www.vacations
www.gov.sg
www.polkowice.pl
www.cafe
www.blogspot.ca
www.uk.net
www.lima-city.de
www.theater
www.sadist.jp
www.mayfirst.org
www.naklo.pl
www.cn.com
www.today
www.likescandy.com
www.duckdns.org
www.domains
www.blogspot.no
www.nf
www.123website.lu
www.xen.prgmr.com
www.edu.ru

Similar names

www.lierne.no
www.kapsi.fi
www.blogspot.ae
www.chowder.jp
www.js.org
www.wf
www.from-ok.com
www.gov.ls
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www.ddns.net
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www.org.za
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www.land
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www.edu.az
www.webhop.org
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www.googleapis.com
www.mydns.jp
www.gov.az
www.eu
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www.town
www.msk.su
www.homedns.org
www.pythonanywhere.com
www.lillesand.no
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www.blogspot.hk
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www.time.no
www.university
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www.memorial
www.fo
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www.org.uk
www.sc.gov.br
www.is-a-caterer.com
www.style
www.afl
www.shopselect.net
www.blogspot.co.il
www.donetsk.ua
www.cc
www.webhop.biz
www.mywire.org
www.sub.jp
www.de
www.hl.cn
www.gotdns.org
www.furniture
www.sx.cn
www.cloud-ip.biz
www.lomza.pl
www.(0x6c6f6c697461)punk.jp
www.com.de
www.bm
www.am
www.dk
www.malopolska.pl
www.software
www.com.sb

DNS History

9 records (4 active, 5 former)

201820192020202120222023202420252026A104.21.55.26172.67.144.362606:4700:3030::ac43:90242606:4700:3033::6815:371a188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::CNAMEtech21.com.cn
●A104.21.55.262026-03-26 → 2026-04-23 · 5 obs
● 2026-03-26 12:37:48
○ 2026-03-26 16:53:10
○ 2026-03-26 18:27:04
● 2026-04-17 12:37:24
● 2026-04-23 21:38:26
●A172.67.144.362026-03-26 → 2026-04-23 · 5 obs
● 2026-03-26 12:37:48
○ 2026-03-26 16:53:10
○ 2026-03-26 18:27:04
● 2026-04-17 12:37:24
● 2026-04-23 21:38:26
○A188.114.96.02026-03-26 → 2026-03-26 · 5 obs
○ 2026-03-26 12:37:48
● 2026-03-26 16:53:10
● 2026-03-26 18:27:04
○ 2026-04-17 12:37:24
○ 2026-04-23 21:38:26
○A188.114.97.02026-03-26 → 2026-03-26 · 5 obs
○ 2026-03-26 12:37:48
● 2026-03-26 16:53:10
● 2026-03-26 18:27:04
○ 2026-04-17 12:37:24
○ 2026-04-23 21:38:26
●A2606:4700:3030::ac43:90242026-03-26 → 2026-04-23 · 5 obs
● 2026-03-26 12:37:48
○ 2026-03-26 16:53:10
○ 2026-03-26 18:27:04
● 2026-04-17 12:37:24
● 2026-04-23 21:38:26
●A2606:4700:3033::6815:371a2026-03-26 → 2026-04-23 · 5 obs
● 2026-03-26 12:37:48
○ 2026-03-26 16:53:10
○ 2026-03-26 18:27:04
● 2026-04-17 12:37:24
● 2026-04-23 21:38:26
○A2a06:98c1:3120::2026-03-26 → 2026-03-26 · 5 obs
○ 2026-03-26 12:37:48
● 2026-03-26 16:53:10
● 2026-03-26 18:27:04
○ 2026-04-17 12:37:24
○ 2026-04-23 21:38:26
○A2a06:98c1:3121::2026-03-26 → 2026-03-26 · 5 obs
○ 2026-03-26 12:37:48
● 2026-03-26 16:53:10
● 2026-03-26 18:27:04
○ 2026-04-17 12:37:24
○ 2026-04-23 21:38:26
○CNAMEtech21.com.cn2017-12-08 → 2017-12-08 · 3 obs
● 2017-12-08 02:56:16
○ 2026-03-26 12:37:48
○ 2026-04-23 21:38:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnd.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn...-
tech21.com.cnnelci.ns.cloudflare.com, yoxall.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.47

NS records: nelci.ns.cloudflare.com, yoxall.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tech21.com.cn (unsigned zone)

⏱️ Timing

Total: 774ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.144.36, 104.21.55.26
AAAA22606:4700:3030::ac43:9024, 2606:4700:3033::6815:371a
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

www.tech21.com.cn maps to four IP numbers: 2606:4700:3030::ac43:9024, 2606:4700:3033::6815:371a, 104.21.55.26 and 172.67.144.36.

other host names include animeid.app, iratysportclub.com, ns1.umbrellus1.com, beronor.binbox.io and co(0x736578)-mgon3rom3o.binbox.io; they share IP numbers with www.tech21.com.cn.