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Head-to-head · Technical SEO Software

Screaming Frog SEO Log File Analyser vs Screaming Frog SEO Spider

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Screaming Frog SEO Log File Analyser #3 in Technical SEO Software 7.9/10 Free plan Free plan✓ 1 of 5 features Visit Screaming Frog
Screaming Frog SEO Spider #4 in Technical SEO Software 7.9/10 Free plan Free plan✓ 1 of 5 features Visit Screaming Frog

Screaming Frog SEO Log File Analyser leads on 0 checks, Screaming Frog SEO Spider on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Free planboth

Screaming Frog SEO Log File Analyser and Screaming Frog SEO Spider score identically on our rubric (7.9 out of 10) for technical seo software; Screaming Frog SEO Log File Analyser sits at #3 and Screaming Frog SEO Spider at #4 in our editorial ranking, so the choice comes down to fit.

Screaming Frog SEO Log File Analyser is the better fit for teams focused on server-log SEO analysis. Screaming Frog SEO Spider is the better fit for technical SEO teams needing a mature crawler.

  • Screaming Frog SEO Log File Analyser fits best

    Teams focused on server-log SEO analysis

  • Screaming Frog SEO Spider fits best

    Technical SEO teams needing a mature crawler

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Side by side

Feature Screaming Frog SEO Log File Analyser 7.9/10 Visit ↗ Screaming Frog SEO Spider 7.9/10 Visit ↗
At a glance
Editor score 7.9 7.9
Ranking #3 in Technical SEO Software #4 in Technical SEO Software
Best for Teams focused on server-log SEO analysis Technical SEO teams needing a mature crawler
Pricing model Free plan + paid Free plan + paid
Starting price $139/user/yr —
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux Windows, macOS, Linux
Support Email, Tickets, Docs Email, Tickets, Phone, Docs
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market, Enterprise
Features Screaming Frog SEO Log File Analyser 1/5 · Screaming Frog SEO Spider 1/5
Scheduled crawls Not checked yet Not checked yet
JavaScript rendering Not checked yet Not checked yet
Log-file analysis ✓ (best) Not checked yet
Structured data audit Not checked yet Not checked yet
API access Not checked yet ✓ (best)
Specs
Crawl limit Not checked yet Not checked yet
Our review
Pros
  • Verifies search-engine bots and identifies spoofed bot IPs
  • Finds errors, redirects, uncrawled URLs and orphan URLs
  • Runs on Windows, macOS and Linux with CSV and Excel exports
  • Crawls JavaScript websites with an integrated Chromium engine
  • Combines technical audits, custom extraction, and crawl comparison
  • Runs on Windows, macOS, and Linux with CLI operation
Cons
  • The Free plan is limited to 1,000 log events in one project
  • It analyses imported logs rather than performing website crawls
  • Its focus is specialized around server-log analysis
  • The Free plan limits each crawl to 500 URLs
  • Advanced capabilities require a paid licence
  • It is not a standalone keyword-rank tracking platform
Our verdict

Screaming Frog SEO Log File Analyser is desktop software for SEOs who need to examine server logs and understand search-engine and AI-bot crawling. It imports Apache, W3C Extended, NGINX, IIS, JSON, CSV, TSV and Amazon Elastic Load…

Read the review →

Screaming Frog SEO Spider is a desktop crawler for technical SEO audits. It is aimed at SEO professionals, agencies, brands, and website owners that need detailed visibility into how sites are structured and rendered. Core audits cover…

Read the review →
  1. Screaming Frog SEO Log File AnalyserTechnical SEO Software 7.9Free plan
  2. Screaming Frog SEO SpiderTechnical SEO Software 7.9Free plan

Strengths and trade-offs

  • Screaming Frog SEO Log File Analyser — where it wins

    • Verifies search-engine bots and identifies spoofed bot IPs
    • Finds errors, redirects, uncrawled URLs and orphan URLs
    • Runs on Windows, macOS and Linux with CSV and Excel exports

    Where it doesn't

    • The Free plan is limited to 1,000 log events in one project
    • It analyses imported logs rather than performing website crawls
    • Its focus is specialized around server-log analysis

  • Screaming Frog SEO Spider — where it wins

    • Crawls JavaScript websites with an integrated Chromium engine
    • Combines technical audits, custom extraction, and crawl comparison
    • Runs on Windows, macOS, and Linux with CLI operation

    Where it doesn't

    • The Free plan limits each crawl to 500 URLs
    • Advanced capabilities require a paid licence
    • It is not a standalone keyword-rank tracking platform

More comparisons

All technical SEO software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update