How to Extract Domains from Bulk URLs for Competitor Backlink Analysis

A successful SEO campaign often starts with a deep dive into your competitors’ backlink profiles. Link-building tools can output spreadsheets containing thousands or millions of individual backlink URLs. Analyzing this massive, raw list can be overwhelming. To turn this data into actionable outreach strategies, you need to extract the root domains and clean up the list. Doing this allows you to see the unique websites linking to your competitors rather than duplicate subpages. In this guide, we’ll cover the best techniques and tools for extracting root domains from bulk lists of URLs quickly and accurately.

Why Extract Domains from Backlink Lists?

Understanding the value of root-domain analysis over URL-level analysis:

• Identifying Unique referring Domains: Knowing how many actual websites are linking, not just individual pages.
• De-duplicating Outreach Lists: Ensuring you only contact a webmaster once per domain.
• Assessing Competitor Domain Authority: Spotting the overall quality of referring domains.

Methods for Extracting Domains in Bulk

• Method 1: Excel / Google Sheets Formulas: Using regex formulas (REGEXEXTRACT) or text-to-columns functions.
• Method 2: Online Domain Extractors: Quick copy-paste tools that isolate and extract domains instantly from raw text.
• Method 3: Command Line & Python Scripts: Utilizing Python’s urllib.parse module for larger datasets.

How to Do Competitor Backlink Analysis Using Extracted Domains

1. Export Competitor Backlinks: Download backlink reports from Ahrefs, Semrush, or Moz.
2. Extract Root Domains: Clean the list down to unique root domains.
3. Filter and Sort by Metrics: Evaluate the domain authority (DA) or domain rating (DR) of each referring site.
4. Identify Link Intersection opportunities: Find domains linking to multiple competitors but not yet linking to you.