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Head-to-head · SEO Log File Analysis Tools

Screaming Frog SEO Log File Analyser vs Nirengi Log Analyzer

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Screaming Frog SEO Log File Analyser #6 in SEO Log File Analysis Tools 8.9/10 Free plan Free plan✓ 0 of 3 features Visit Screaming Frog
Nirengi Log Analyzer #7 in SEO Log File Analysis Tools 8.8/10 Free plan Free plan✓ 2 of 3 features Visit Nirengi

Screaming Frog SEO Log File Analyser leads on 0 checks, Nirengi Log Analyzer 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

  • Highest scoreScreaming Frog SEO Log File Analyser · 8.9/10
  • Free planboth
  • Most featuresNirengi Log Analyzer · 2 of 3

Screaming Frog SEO Log File Analyser scores higher on our rubric for seo log file analysis tools: 8.9 against 8.8 out of 10; our editors rank them #6 and #7.

Screaming Frog SEO Log File Analyser is the better fit for established teams needing desktop log analysis. Nirengi Log Analyzer is the better fit for mac users analyzing large multi-source logs.

  • Screaming Frog SEO Log File Analyser fits best

    Established teams needing desktop log analysis

  • Nirengi Log Analyzer fits best

    Mac users analyzing large multi-source logs

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Side by side

Feature Screaming Frog SEO Log File Analyser 8.9/10 Visit ↗ Nirengi Log Analyzer 8.8/10 Visit ↗
At a glance
Editor score 8.9 8.8
Ranking #6 in SEO Log File Analysis Tools #7 in SEO Log File Analysis Tools
Best for Established teams needing desktop log analysis Mac users analyzing large multi-source logs
Pricing model Free plan + paid Free
Starting price $139/user/yr Free
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux macOS
Support Email, Tickets, Docs Email, Phone, Docs
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market, Enterprise
Features Screaming Frog SEO Log File Analyser 0/3 · Nirengi Log Analyzer 2/3
Crawler segmentation Not checked yet ✓ (best)
Crawl waste reports Not checked yet ✓ (best)
Search Console integration Not checked yet Not checked yet
Specs
Log input methods Not checked yet Upload
Log processing limit Not checked yet Not checked yet
Data retention Not checked yet Not checked yet
Our review
Pros
  • Verifies search-engine bots and identifies spoofed bot IPs
  • Matches logs with URL data to find uncrawled and orphan URLs
  • Supports Windows, macOS and Linux with CSV and Excel exports
  • Supports Apache, Nginx, IIS, CloudFront and Cloudflare logs
  • Verifies crawler identity with reverse and forward DNS checks
  • Exports CSV and self-contained HTML reports without a subscription
Cons
  • The Free plan is limited to 1,000 log events in one project
  • The paid plan costs $139 per user per year
  • Analyses imported logs rather than performing website crawls
  • Available only on macOS
  • Requires uploaded server access logs for analysis
  • Report exports are limited to CSV and self-contained HTML
Our verdict

Screaming Frog SEO Log File Analyser is a desktop application for SEOs examining server logs and search-engine or AI-bot crawling. It imports Apache, W3C Extended, NGINX, IIS, JSON, CSV, TSV and Amazon Elastic Load Balancing log formats,…

Read the review →

Nirengi Log Analyzer is a native macOS application for technical SEO specialists, consultants, publishers, SaaS teams and e-commerce teams. It processes server access logs locally to examine Googlebot and AI crawler activity, crawl budget,…

Read the review →
  1. Screaming Frog SEO Log File AnalyserSEO Log File Analysis Tools 8.9Free plan
  2. Nirengi Log AnalyzerSEO Log File Analysis Tools 8.8Free plan

Strengths and trade-offs

  • Screaming Frog SEO Log File Analyser — where it wins

    • Verifies search-engine bots and identifies spoofed bot IPs
    • Matches logs with URL data to find uncrawled and orphan URLs
    • Supports 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
    • The paid plan costs $139 per user per year
    • Analyses imported logs rather than performing website crawls

  • Nirengi Log Analyzer — where it wins

    • Supports Apache, Nginx, IIS, CloudFront and Cloudflare logs
    • Verifies crawler identity with reverse and forward DNS checks
    • Exports CSV and self-contained HTML reports without a subscription

    Where it doesn't

    • Available only on macOS
    • Requires uploaded server access logs for analysis
    • Report exports are limited to CSV and self-contained HTML

More comparisons

All SEO log file analysis tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update