tldextract

v5.4.0Verified publisher

Splits a URL or hostname into subdomain, registered domain and public suffix

Community-packaged from github.com/john-kurkowski/tldextract: the registry's community pins the upstream release; the tool is its authors' work. Maintain that project? Claim this package.

Run

TerminalAgent

Through ot mcp, an agent calls run_tool with this; ot asks you before anything that goes online or touches a target. Set it up: ot mcp install claude (or cursor, vscode, codex, gemini).

{"tool":"osintverse-community/tldextract","target":"https://forums.news.cnn.com/","input_type":"url"}

Or just say: "Run osintverse-community/tldextract on https://forums.news.cnn.com/ with OTInstaller." The registry's read-only MCP server at api.otinstaller.com/mcp can find tools without installing anything.

ot run osintverse-community/tldextract url:https://forums.news.cnn.com/ --format table

ot install osintverse-community/tldextract

Python wheel, run in a read-only container (Docker optional with --native) · talks to publicsuffix.org, raw.githubusercontent.com · no key · up to 2 min. The first ot run installs the tool after asking once. The example value is the registry's own test input, so this command has run. Drop --format table for JSON.

Don't have ot? Install it in one line

macOS / LinuxWindows

curl -fsSL https://get.otinstaller.com/ot | sh

What this script does

Downloads the latest ot release for your machine from GitHub Releases.
Checks its SHA-256 against checksums.txt, and the Ed25519 signature on that file against the key built into the script.
Puts ot in /usr/local/bin or ~/.local/bin. Nothing else is written. Read the script.

irm https://get.otinstaller.com/ot.ps1 | iex

What this script does

Downloads the latest ot release for your machine from GitHub Releases.
Checks its SHA-256 against checksums.txt, and the Ed25519 signature on that file against the key built into the script.
Puts ot in %LOCALAPPDATA%\Programs\ot, and adds it to your PATH. Nothing else is written. Read the script.

Evidence

Security tab →

Pinnedwheel sha256:7f02aed3…efb34f from PyPI. ot re-hashes the file after download and refuses a mismatch.
Not signedthis release carries no signature the registry could verify. ot warns before installing.
Scanned20 Oct 2026: 0 critical, 0 high, 5 medium, 1 low vulnerabilities; 0 embedded secrets, 0 malware heuristics; SBOM with 9 packages.
Workssmoke test passed on 20 Oct 2026 (exit 0 in 6.5 s, offline sandbox); the nightly health check passed (today).
Backed upa copy of this wheel is kept by the registry. If PyPI removes it, ot downloads the copy and checks the same hash.
Reviewedosintverse-community is a verified publisher: the registry confirmed who runs it, and a person reviewed its first release against the acceptable-use rules.

What you get back

Result envelope →

{
  "envelope": 1,
  "tool": "osintverse-community/tldextract@5.4.0",
  "runtime": "pipx",
  "input": {
    "url": "https://forums.news.cnn.com/"
  },
  "started_at": "2026-10-21T09:00:00Z",
  "duration_ms": 4100,
  "exit_code": 0,
  "entities": [
    {
      "type": "domain",
      "value": "example.com"
    },
    {
      "type": "subdomain",
      "value": "mail.example.com"
    }
  ],
  "warnings": []
}

Every tool returns this shape, shaped here from what this tool declares it finds. --format table to read it; ot extract and ot auto to continue.

tldextract (community package)

This repository packages github.com/john-kurkowski/tldextract for the OTInstaller Registry as osintverse-community/tldextract. The tool is the work of its authors, under the BSD-3-Clause license; this repository only holds the manifest and release workflow.

Report problems with the tool upstream, and problems with the packaging here. If you maintain the upstream project and want to publish it yourself, open an issue or run ot claim osintverse-community/tldextract: the package is transferred to you.

It installs the upstream project's own release from PyPI, pinned by version and hash; nothing here is rebuilt.

ot run osintverse-community/tldextract --url …

Packaged version: 5.4.0.

Guides using this tool

Domain investigation playbook

DNS, subdomains, certificates, history and look-alikes of a domain, passively first

About domain
intermediate

Verified publisher

What next

tldextract finds domain, subdomain. Tools that take those:

domain → 9 tools subdomain → 9 tools ot auto, with a saved result

Other url tools

All url tools →

Alternatives to tldextract that also take an url; ot auto runs every installed one on the same value.

osintverse-community/gallery-dl

Lists the images and metadata of posts and galleries on Reddit, Flickr, Imgur, Tumblr and 300+ sites

Takes url → finds image, other, url
No key · Python wheel