ustbcha.workers.dev - dns.ninja

ustbcha.workers.dev

DNSSEC⚠️ Not signed
NSduke.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b6e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRduke.ns.cloudflare.com
A2803:f800:50::6ca2:c16e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRduke.ns.cloudflare.com
A2a06:98c1:50::ac40:216e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRduke.ns.cloudflare.com
A108.162.193.110🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRduke.ns.cloudflare.com
A172.64.33.110🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRduke.ns.cloudflare.com
A173.245.59.110🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRduke.ns.cloudflare.com
NSgemma.ns.cloudflare.com
A2606:4700:50::a29f:261b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgemma.ns.cloudflare.com
A2803:f800:50::6ca2:c21b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgemma.ns.cloudflare.com
A2a06:98c1:50::ac40:221b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRgemma.ns.cloudflare.com
A108.162.194.27🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgemma.ns.cloudflare.com
A162.159.38.27Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgemma.ns.cloudflare.com
A172.64.34.27🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgemma.ns.cloudflare.com
SOAduke.ns.cloudflare.comdns@cloudflare.com serial=2408647529

workers.dev

DNSSEC⚠️ Not signed
A2606:4700::6812:c0f🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:d0f🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.12.15Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.13.15Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSclyde.ns.cloudflare.com ⭐
NSsofia.ns.cloudflare.com
TXTv=spf1 -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.12.15, 104.18.13.15
IPv6 hints2606:4700::6812:c0f, 2606:4700::6812:d0f
SOAclyde.ns.cloudflare.comdns@cloudflare.com serial=2408651019
rank #1950 globally
rank #4 in the tld

workers.dev

workers.dev is a domain provided by Cloudflare that hosts the public endpoints for Cloudflare Workers, a serverless platform that runs code at the network edge. The domain is operated by Cloudflare.

Key facts

  • Owner / operator: Cloudflare
  • TLD:.dev— gTLD
  • Primary purpose: serverless edge compute platform (Cloudflare Workers)
  • Status: active

History

YearEvent
2017Cloudflare launches Workers (beta)
2019workers.devdomain made available for user‑deployed workers
2022Durable Objects feature reaches GA, expanding Workers capabilities

Notable subdomains or services

  • *.workers.dev– public endpoint for individual Cloudflare Workers

Related domains

  • cloudflare.com– corporate website of the operator
Semrush Rank:#5,943,211 Keywords:1 Traffic:27/mo
📈 Tranco rank: #81
workers.dev - Tranco Rank (30d: ↑+6)79808284868890May 24Jun 3Jun 13Jun 23Jul 2Rank#87#81

workers.dev

workers.dev is a domain owned by Cloudflare that provides free subdomains for applications deployed on Cloudflare Workers, their serverless computing platform.

Cloudflare Workers Platform

Cloudflare Workers allows developers to deploy serverless code that runs globally across Cloudflare's edge network in 330+ cities worldwide. Key capabilities include:

  • Serverless Compute - JavaScript, TypeScript, Python, and Rust execution with minimal cold starts
  • Storage Solutions - R2 object storage, Workers KV (key-value), and Durable Objects for stateful applications
  • AI Infrastructure - Built-in AI inference, AI Gateway, and agent capabilities
  • Global Distribution - Code executes within 50ms of 95% of the world's population

The workers.dev Domain

When developers deploy a Cloudflare Worker without a custom domain, they receive a free subdomain under workers.dev (e.g.,myapp.username.workers.dev). This makes it easy to:

  • Quickly deploy and test applications without purchasing a domain
  • Share prototypes and demos
  • Run production workloads on Cloudflare's infrastructure

The platform is popular for building APIs, full-stack web applications, real-time multiplayer experiences, and AI-powered services with automatic scaling and pay-per-use pricing.

Subdomains

chav01.ustbcha.workers.dev
42vvv.ustbcha.workers.dev

Same first word

ustbcha.workers.dev

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DNS History

2 records (2 active, 0 former)

NSduke.ns.cloudflare.comgemma.ns.cloudflare.com
●NSduke.ns.cloudflare.com2026-03-18 → 2026-07-04 · 2 obs
● 2026-03-18 01:40:52
● 2026-07-04 11:54:34
●NSgemma.ns.cloudflare.com2026-03-18 → 2026-07-04 · 2 obs
● 2026-03-18 01:40:52
● 2026-07-04 11:54:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
workers.devsofia.ns.cloudflare.com, clyde.ns.cloudflare.com-
ustbcha.workers.devduke.ns.cloudflare.com, gemma.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.110

NS records: duke.ns.cloudflare.com, gemma.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 1681ms | Queries: -

📄 Records

TypeCountSample Data
NS2duke.ns.cloudflare.com, gemma.ns.cloudflare.com
SOA1duke.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

chav01.ustbcha.workers.dev and 42vvv.ustbcha.workers.dev are both subdomains of ustbcha.workers.dev.

Name Servers

ustbcha.workers.dev has two authoritative name servers — duke.ns.cloudflare.com and gemma.ns.cloudflare.com.

ustbcha.workers.dev uses the same name servers as several other domains — among them carlotti.ch, ioan-tobolsk.ru, newsbase.co.jp and two more.

ustbcha.workers.dev has at least partial name server overlap with other domains, such as blmhpmc.com, cgatepro.com, musictechnologypr.com and two others.

It is common to see these name servers used together with name servers seamus.ns.cloudflare.com and jihoon.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

duke.ns.cloudflare.com points to 108.162.193.110, 172.64.33.110, 173.245.59.110 and 3 other IP addresses.

gemma.ns.cloudflare.com points to 108.162.194.27, 162.159.38.27, 172.64.34.27 and 3 other IP addresses.