null.yuyan99906.workers.dev - robtex.com

null.yuyan99906.workers.dev

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:adbd🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:480e🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.72.14Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.173.189🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.72.14, 172.67.173.189
IPv6 hints2606:4700:3033::ac43:adbd, 2606:4700:3036::6815:480e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=124, name=cloudflare-ech.com

yuyan99906.workers.dev

DNSSEC⚠️ Not signed
NSisabel.ns.cloudflare.com ⭐
NSoswald.ns.cloudflare.com
SOAisabel.ns.cloudflare.comdns@cloudflare.com serial=2410130732

Same first word

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null.support
null.mypi.co
null.is
null.love
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null.s3-website.eu-north-1.amazonaws.com
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null.trade
null.blogspot.al
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null.blogspot.co.nz
null.mywire.org
null.expert
null.mycloudnas.com
null.marketing
null.pictures
null.4lima.ch
null.s3-website.ap-southeast-1.amazonaws.com
null.auction
null.se
null.webflow.io
null.blogspot.pe
null.rt.ht
null.science
null.translate.goog
null.market
null.services
null.pt
null.replit.app
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null.demo.jelastic.com
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null.s3.ap-south-1.amazonaws.com
null.soundcast.me
null.blogspot.ru
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null.hatenadiary.jp
null.s3-website-ap-southeast-2.amazonaws.com
null.es
null.aem.page
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null.lv
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null.jelastic.dogado.eu
null.nom.za
null.je
null.framer.wiki
null.et
null.design
null.kapsi.fi
null.blogspot.md
null.w-staticblitz.com
null.blogspot.bg
null.noor.jp
null.com.tr
null.blogspot.nl
null.blogspot.co.uk
null.glitch.me
null.onl
null.s3-website.eu-central-1.amazonaws.com
null.limited
null.st
null.kirk.replit.dev
null.lt
null.blogspot.no
null.fm
null.herokussl.com
null.blogspot.gr
null.cloud
null.tv
null.s3-website-ap-northeast-1.amazonaws.com
null.sinaapp.com
null.app
null.clan.rip
null.nohost.me

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null.name.tr
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null.investments
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null.s3-website.us-west-2.amazonaws.com
null.ar
null.blogspot.kr
null.ws
null.fyi
null.art
null.fi
null.co.in
null.industries
null.fr
null.carrd.co
null.githubusercontent.com
null.nyc
null.myqnapcloud.com
null.tc
null.computer
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null.engineer
null.hotelwithflight.com
null.run
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null.vapor.cloud
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null.sblo.jp
null.moe
null.ltd
null.be
null.discount
null.web.app
null.kozow.com
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null.firebaseapp.com
null.craft.me
null.onrender.com
null.serveftp.net
null.homes
null.dns-dynamic.net
null.pantheonsite.io
null.gl
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null.s3-external-1.amazonaws.com
null.sx
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null.blogspot.com.co
null.tuxfamily.org
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null.com.cn
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null.s3.ap-southeast-2.amazonaws.com
null.is-cool.dev
null.cc
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null.s3-website-eu-west-1.amazonaws.com
null.com
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null.jed.wafaicloud.com
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null.operaunite.com
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null.lib.ee
null.co.nz
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null.s3.eu-west-3.amazonaws.com

DNS History

4 records (4 active, 0 former)

A104.21.72.14172.67.173.1892606:4700:3033::ac43:adbd2606:4700:3036::6815:480e
●A104.21.72.142026-06-27 → 2026-08-01 · 2 obs
● 2026-06-27 09:50:04
● 2026-08-01 08:58:04
●A172.67.173.1892026-06-27 → 2026-08-01 · 2 obs
● 2026-06-27 09:50:04
● 2026-08-01 08:58:04
●A2606:4700:3033::ac43:adbd2026-06-27 → 2026-08-01 · 2 obs
● 2026-06-27 09:50:04
● 2026-08-01 08:58:04
●A2606:4700:3036::6815:480e2026-06-27 → 2026-08-01 · 2 obs
● 2026-06-27 09:50:04
● 2026-08-01 08:58:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
workers.devsofia.ns.cloudflare.com, clyde.ns.cloudflare.com-
yuyan99906.workers.devisabel.ns.cloudflare.com, oswald.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.104

NS records: isabel.ns.cloudflare.com, oswald.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 206ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.72.14, 172.67.173.189
AAAA22606:4700:3036::6815:480e, 2606:4700:3033::ac43:adbd
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

null.yuyan99906.workers.dev directs to four IP numbers, which are 104.21.72.14, 172.67.173.189, 2606:4700:3033::ac43:adbd and 2606:4700:3036::6815:480e.

mail.mapesmurals.com, www.randomsocial.com, infracentriotrust.sbs and two other host names share IP numbers with null.yuyan99906.workers.dev.