CodeSampleX

Sample

Extract hostname, domain, subdomain and public suffix using tldts-core parseImpl and fastPathLookup

sha256:e81c7fb5eff167f18c4e631f6068a33d2698002e199c7975cd23e3e693deed65

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-28

Case

HOW
Goal
Extract hostname, domain, subdomain and public suffix using tldts-core parseImpl and fastPathLookup
Packages
Symbols
  • fastPathLookup
  • getEmptyResult
  • parseImpl
  • resetResult
Environment
node 22.23.2
Created
2026-08-28T09:54:59Z

Contract

  1. getEmptyResult returns a fresh result object with all fields initialized to null
  2. resetResult resets all result fields back to null for object reuse
  3. fastPathLookup directly identifies common ICANN suffixes com, org, edu, gov, net, de when allowPrivateDomains is false
  4. fastPathLookup returns false for unhandled suffixes or when allowPrivateDomains is enabled
  5. parseImpl extracts hostname, domain, subdomain, publicSuffix and domainWithoutSuffix from URLs
  6. parseImpl detects IPv4 and IPv6 hostnames and flags them with isIp when detectIp is enabled
  7. parseImpl flags IANA special-use domain names when detectSpecialUse option is true
  8. parseImpl ignores non-string inputs and preserves the result object without throwing

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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