domain-checker
Skill5 starsChanged 3 months agoMITView on GitHub
Check domain name availability in bulk via RDAP and DNS — up to 20 domains per request, no registrar account
2 other projects use a version of this.
Adopted by
Most recently taken up by
- davidondrej/skillstheir own version, first seen Oct 29, 2026
- georgekhananaev/claude-skills-vaulttheir own version, first seen May 25, 2026
Other versions2 projects use a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 2
- davidondrej/skills★ 4.3ksame name
- georgekhananaev/claude-skills-vault★ 28same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository51 other files it gives its agents.
- Airtable ManagerSkill
- Sam Altman - AI StrategySkill
- Sam Altman - Startup ScalingSkill
- Animate StorySkill
- Jeff Bezos - Customer ObsessionSkill
- Jeff Bezos - Operations FlywheelSkill
- Charlie Munger - Inversion ThinkingSkill
- Charlie Munger - Mental ModelsSkill
- Robert Cialdini - Conversion PsychologySkill
- Robert Cialdini - Persuasion ScienceSkill
- Cold OutreachSkill
- Competitor AnalysisSkill
- Content HumanizerSkill
- Content Repurpose PipelineSkill
- Content SummarizerSkill
- Conversion AuditSkill
- CrowdTest SalesSkill
- Ray Dalio - Decision SystemsSkill
- Ray Dalio - Principles MachineSkill
- Data AnalystSkill
- Finance DashboardSkill
- Flight SearchSkill
- Generate Video PresentationSkill
- Google CalendarSkill
- Growth Experiment EngineSkill
- High Volume Cold OutreachSkill
- Image GeneratorSkill
- Instagram ManagerSkill
- Instantly OutboundSkill
- Lead QualificationSkill
- LinkedIn ManagerSkill
- logo-makerSkill
- Marketing PsychologySkill
- Meeting Action ExtractorSkill
- Multi-Platform ResearchSkill
- News & Trend MonitorSkill
- Prompt EngineeringSkill
- Reddit ManagerSkill
- Self-Improving AgentSkill
- SEO OptimizationSkill
- Stripe ManagerSkill
- Nassim Taleb - AntifragilitySkill
- Nassim Taleb - Risk IntelligenceSkill
- Target Competitors LeadsSkill
- wan2.7-image-skillSkill
- Warren Buffett - Capital AllocationSkill
- Warren Buffett - Risk AssessmentSkill
- Web ResearchSkill
- X StrategySkill
- YouTube ManagerSkill
- YouTube Shorts PipelineSkill
The file
We split this skill into the rules it gives an agent
3 rules. About 0 are common, 2 are distinctive, and 1 is very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈2
Distinctive · estimate
This author's own choices. Worth a look.
1
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 13
Check domain name availability in bulk using RDAP and DNS lookups.
- Distinctive: line 22
Check availability of one or more domains (max 20 per request).
- Very specific: line 50
When asked to check if a domain is available, call the /check endpoint with a comma-separated list of domains.
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Domain Checker
Check domain name availability in bulk using RDAP and DNS lookups.
API
Base URL: https://domain-checker.openlabor.workers.dev
Endpoints
GET /check?domains=example.com,example.ai
Check availability of one or more domains (max 20 per request).
Response:
{
"count": 2,
"available": 1,
"taken": 1,
"results": [
{ "domain": "example.com", "available": false },
{ "domain": "example.ai", "available": true }
]
}GET /tlds
List supported TLDs with built-in RDAP servers.
Response:
{ "supported": ["com", "net", "org", "ai", "dev", "app", "xyz", "cc", "tv"] }GET /
API info and endpoint documentation.
Usage
When asked to check if a domain is available, call the /check endpoint with a comma-separated list of domains. Report results clearly — which are available and which are taken.
For TLDs not in the built-in list, the API will attempt IANA RDAP bootstrap lookup, then fall back to DNS-based checking via Cloudflare DoH.
Examples
- "Is acme.com available?" →
GET /check?domains=acme.com - "Check acme across .com, .ai, .dev" →
GET /check?domains=acme.com,acme.ai,acme.dev - "What TLDs can you check?" →
GET /tlds
Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

