Dive into our data, search now!

We offer robust APIs and data services for domainers, data crawlers, security teams and many more.

385.4 M

Domains known to webXtrend

9.9 M

New domains in the last 30 days

62.7 M

Social media profiles detected

briefkin.dev

Get an email when its DNS, website or certificate changes.

briefkin.dev serves a website of its own. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

Its busiest IP address is shared with 1,032 other domains.

The most recent crawl returned the page title “Briefkin: the needs-you inbox for your AI agents” and 237,417 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .dev Statistics for all domains we know under this TLD.
Has website yes A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record yes The domain has an MX record.
External redirect no The domain redirects to another domain.
Redirect to https no The domain redirects to https.
Redirect to www. no The domain redirects to www.domain.
Only with www. no The domain can only be reached with the subdomain "www".
Only DNS, no website no There are no A or AAAA records in DNS.
IP-Address Both Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate valid Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 4,116 Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "briefkin.dev"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

Similar websites

Website Similarity
Devvy — Engineering that runs itself
Turn messages into production code. Devvy spins up isolated Firecracker VMs from Slack, writes the code, and opens a pull request.
84 %
StarkIDE — The desktop IDE built for AI coding agents
StarkIDE is a native desktop IDE for agentic development. Run Claude Code, Codex, and Cursor in parallel terminals alongside an editor, git, database, and br...
84 %
AnyReview — Every PR, merged with evidence
AnyReview is the AI pull request review layer for GitHub teams: automated prechecks, evidence extraction, verified findings, and actionable results written b...
83 %
Home - codeRaven
83 %
InPipe — the project tracker that ships the work
A Linear-style tracker with an AI delivery layer: agents pick up your cards, write the code, run your tests, and open a PR. Bring your own AI — MCP, your API...
83 %
amux — The Agent Control Plane
Run an AI engineering team from one dashboard. amux is the open-source control plane for AI coding agents — launch, coordinate, monitor, and recover dozens o...
82 %
Enabling Artifacts Driven Development, with a Sensei | Kosuke
Kosuke brings every change back as artifacts you judge in seconds: a prototype, a recording, a verdict. Sensei brings them to you one at a time, from any agent.
82 %
Rostrum | AI Playbooks for Engineering Chores
Rostrum is building AI playbooks for engineering teams — background workflows for PR fixes, dependency updates, migrations, and other repetitive development...
82 %
Kabana · agent-first kanban for everyone shipping software
A kanban board that dispatches work to AI coding agents on your machine. Your code, your AI subscription, our scheduling. Never see your code, never proxy mo...
82 %
AI Agent Coder — Autonomous coding agent for complex tasks
AI Agent Coder plans, writes, tests, and ships code autonomously. Give it a task, review the PR.
82 %
Zona Notify: Stay tuned, Stay Notified.
Zona is the inbox for alerts from your scripts, servers, CI jobs and AI agents. One HTTPS request or one MCP tool call, and the alert is on your iPhone.
82 %
Skuggi — An AI engineering team that maintains your repo
Skuggi is an AI engineering agent for GitHub that maintains your codebase. It plans from an issue, implements a draft PR, reviews every PR in under two minut...
81 %
Refacto.ai | World class code reviews with AI.
AI-driven code reviews that catch issues early, improve code quality, and help development teams ship faster with confidence.
81 %
CodeCave — Self-hosted AI coding agent orchestration
Run a team of AI coding agents on your own machine. Isolated git branches, merges you approve, guard rails — your code never leaves your box.
81 %
PAIRL | Auditable Agent Context at 60% Fewer Tokens
60% smaller than the transcript, more faithful than a summary: PAIRL cuts agent context by around 60% while keeping every excerpt verbatim and source-checked...
81 %
Aether: Not a black box. A devbox.
Run Claude Code, Codex, and OpenCode in isolated cloud devboxes you can watch, steer, SSH into, and verify. Your provider account covers the model; Aether ch...
81 %
Conductore — AI Orchestration Terminal Manager
The terminal manager built for AI-driven development. Orchestrate multiple agents across split panes, monitor idle/stuck agents, auto-resume rate limits, and...
81 %
Mission Control for AI Coding Agents | claude-view
Mission Control for AI coding agents
81 %
Specship — AI coding agent for ticket-to-PR automation
Specship is a spec-driven AI coding agent that turns tickets, screenshots, and product requests into acceptance criteria, failing tests, code changes, and re...
81 %
GuardProxy — Read-Only API Proxies for AI Agents
Turn any full-access API key into a read-only key in 60 seconds. GuardProxy blocks destructive HTTP methods so AI agents can read data without modifying or d...
81 %

Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer Google Trust Services
Valid from 10/8/2026
Valid to 1/6/2027
Time until expiry 74 days

Last successful crawl

Title Briefkin: the needs-you inbox for your AI agents
Description The needs-you inbox for your AI agents. Claude Code, Codex and cron jobs report to one dashboard; Telegram pings you only when it is your turn.
Content-Length 237,417 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address First seen
104.21.32.144 10/14/2026
172.67.152.100 10/14/2026
IPv6 address First seen
2606:4700:3037:0:0:0:6815:2090 10/14/2026
2606:4700:3037:0:0:0:ac43:9864 10/14/2026
Mail server Priority First seen
route2.mx.cloudflare.net 51 10/22/2026
route3.mx.cloudflare.net 86 10/22/2026
route1.mx.cloudflare.net 95 10/22/2026
Name server First seen
dane.ns.cloudflare.com 10/14/2026
edna.ns.cloudflare.com 10/14/2026

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

104.21.32.144 1,033 domains · here since 10/9/2026
Domain On this IP since
zunpotiaomiaozhunliao.shop 10/5/2026
zjzamy.com 10/8/2026
zjhuasen.com 9/19/2026
zhongheli.com.cn 9/29/2026
zhenghi.com 9/14/2026
zerohij.onl 9/23/2026
zeroaion.com 9/16/2026
zerkalo-leonbets9.top 9/20/2026
zephyraura.shop 9/16/2026
zenunderwear.gr 10/13/2026
zentriacyber.com 9/15/2026
zaplure.click 9/16/2026
and 1,020 more
172.67.152.100 1,033 domains · here since 10/9/2026
Domain On this IP since
zunpotiaomiaozhunliao.shop 10/5/2026
zjzamy.com 10/8/2026
zjhuasen.com 9/19/2026
zhongheli.com.cn 9/29/2026
zhenghi.com 9/14/2026
zerohij.onl 9/23/2026
zeroaion.com 9/16/2026
zerkalo-leonbets9.top 9/20/2026
zephyraura.shop 9/16/2026
zenunderwear.gr 10/13/2026
zentriacyber.com 9/15/2026
zaplure.click 9/16/2026
and 1,020 more
2606:4700:3037::6815:2090 1,025 domains · here since 10/9/2026
Domain On this IP since
zunpotiaomiaozhunliao.shop 10/5/2026
znzzz.net 10/4/2026
zjzamy.com 10/8/2026
zjhuasen.com 9/19/2026
zhongheli.com.cn 9/29/2026
zhenghi.com 9/14/2026
zerohij.onl 9/23/2026
zeroaion.com 9/16/2026
zerkalo-leonbets9.top 9/20/2026
zephyraura.shop 9/16/2026
zenunderwear.gr 10/13/2026
zentriacyber.com 9/15/2026
and 1,012 more
2606:4700:3037::ac43:9864 1,025 domains · here since 10/9/2026
Domain On this IP since
zunpotiaomiaozhunliao.shop 10/5/2026
znzzz.net 10/4/2026
zjzamy.com 10/8/2026
zjhuasen.com 9/19/2026
zhongheli.com.cn 9/29/2026
zhenghi.com 9/14/2026
zerohij.onl 9/23/2026
zeroaion.com 9/16/2026
zerkalo-leonbets9.top 9/20/2026
zephyraura.shop 9/16/2026
zenunderwear.gr 10/13/2026
zentriacyber.com 9/15/2026
and 1,012 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.