URL deduplication means finding and removing duplicate URLs from a dataset.

The same page can appear in several formats:

  • https://example.com
  • https://www.example.com/
  • https://example.com/?utm_source=newsletter
  • http://example.com

Raw exact matching can treat those as different URLs. URL deduplication normalizes them before matching.

What URL normalization can remove

URL deduplication often cleans:

  • Protocol differences, such as http and https
  • Trailing slashes
  • www and other subdomains when needed
  • Query parameters
  • Tracking parameters
  • Fragments after #

🔍 Example

Google scraping often returns the same page from several queries. Deduplicate the result URL before enriching domains or profiles.

When to deduplicate URLs

Deduplicate URLs before:

  • Enriching websites
  • Scraping profile pages
  • Running metadata extraction
  • Importing sitemap URLs
  • Merging Google search results
  • Building lead lists from directories

This avoids duplicate work and saves enrichment credits.

Datablist workflow

Datablist has URL-aware matching in the Duplicates Remover. You can use URL processing options such as removing subdomains or query parameters.

Use it after the Google Multi Queries Scraper, Sitemap Scraper, or Website AI Scraper.