• CLEANED
  • MAPPED
  • VALIDATED
  • REVIEW

How to normalize domain structures with your AI

Connect the Public Suffix Extractor once. Your AI then handles the heavy lifting of parsing complex hostnames into clean, usable data.

Ask AI about this page

Short answer

How can I normalize domain structures with my AI?

Your AI uses the extract_domain tool to strip away subdomains and identify the primary registrable domain. This turns a messy list of hostnames into a clean dataset. You'll get a structured list of parent domains ready for analysis.

The results.

Where your data lands.

The AI processes your raw input and organizes the output based on how you want to use it.

CLEANED

Primary domains only

The AI strips subdomains and extra pathing. You get a list of just the core registrable domains.

MAPPED

Grouped by parent

Your agent organizes the extracted domains into logical groups. This helps you see which companies own multiple subdomains.

VALIDATED

Verified domain lists

The AI checks the domains against the Public Suffix List. You get a reliable list that follows standard web rules.

REVIEW

Human oversight needed

If the AI hits a malformed URL, it flags it for you. You decide how to handle these edge cases manually.

The workflow

What your AI does when the data arrives.

The AI acts as a specialized parser that understands the nuances of the Public Suffix List.

  1. Parsing hostnames

    The AI looks at your raw URL strings and identifies the host component. It ignores protocols and paths to focus on the domain structure.

    extract_domain

  2. Identifying registrable domains

    Using the extracted host, the AI determines exactly where the registrable domain starts. It accounts for complex suffixes like .co.uk or .com.au.

    extract_domain

  3. Filtering noise

    The AI strips away unnecessary subdomains like 'www' or 'mail'. This leaves you with the core domain you actually need.

    extract_domain

  4. Flagging anomalies

    The AI identifies strings that don't follow standard domain patterns. It marks these so you can inspect them without losing the rest of the batch.

    extract_domain

Try it

Copy these to start.

Use these prompts to kick off the normalization process.

Starting points

These are just ideas. Swap out the bracketed text with your actual data source, like a CSV file or a specific text block.

psl Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_LmUqJapaOSRBG8u0znMC3iVKUNjgZCM8mbyDzszm/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — psl capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "public-suffix-extractor-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_LmUqJapaOSRBG8u0znMC3iVKUNjgZCM8mbyDzszm/mcp"
    }
  }
}
Copy into chat04

  • Extract the primary domains from this list of URLs in my spreadsheet.

  • Clean up these hostnames by removing all subdomains and keeping only the registrable domain.

  • Look at this list of URLs from my marketing report and group them by their parent domains.

  • Identify any malformed or weird URLs in this dataset that don't follow standard domain rules.

  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Start here

Connect Public Suffix Extractor once, then ask.

Just click the link to connect. Your credentials stay encrypted, and you can immediately start using the tool in your favorite AI client.

Connect Public Suffix Extractor to your AI

FAQ

How this task behaves.

  • 01

    Can the AI change the original URLs in my file?

    No. The AI only reads your data and provides the extracted results. It does not modify your source files.

  • 02

    Does it handle international domains like .jp or .de?

    Yes. The tool uses the Public Suffix List to correctly identify registrable domains across different TLDs.

  • 03

    Will the AI delete any of my data?

    No. The AI only performs extraction and analysis. It has no capability to delete or overwrite your data.

  • 04

    What happens if a URL is just an IP address?

    The tool is designed for domain structures. If it encounters an IP address, it will treat it as a non-domain string.

  • 05

    Can I use this to find subdomains?

    No. This tool is built to strip subdomains away to find the primary domain, not to discover hidden subdomains.

  • More questions about Public Suffix Extractor? The Connector page answers them. See everything the Public Suffix Extractor Connector can do

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