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Nirengi Log Analyzer

keremgezergun.com

Free plan macOS
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Spec score 7.5 #16 of 27 in SEO Log File Analysis Tools

What it is

Nirengi Log Analyzer is a free native macOS application for examining server logs and understanding how crawlers and visitors reach a site. It covers crawler identity, AI crawler activity, crawl budget, technical errors, URL coverage, content freshness, visitor traffic, and bandwidth through 41 listed reports. The app compares Googlebot with GPTBot, ClaudeBot, PerplexityBot, and other AI agents. Reports can identify 404 and 5xx responses, redirects, soft-404 candidates, parameter waste, and robots.txt issues. Sitemap URLs can be compared with observed traffic to locate uncrawled, orphaned, or neglected pages. Supported inputs include Apache and Nginx, IIS W3C, AWS CloudFront, Cloudflare Logpush NDJSON, JSON Lines, and AWS ALB logs. Filtered findings export to CSV, while complete reports can be shared as single-file HTML documents. Selected files are processed locally in the macOS App Sandbox, with no account required and no advertising, analytics, tracking pixels, telemetry, or crash-reporting SDK.

Spec sheet

Purpose
Nirengi analyzes server logs to show crawler behavior, errors, crawl budget, coverage, content freshness and bandwidth.Read 3 Oct 2026 · keremgezergun.com
Intended users
The maker describes it as a native macOS app for technical SEO specialists, consultants, publishers, SaaS teams and e-commerce teams.Read 3 Oct 2026 · keremgezergun.com
Support
The developer offers direct support by email or phone and asks users not to send production logs before removing confidential information.Read 3 Oct 2026 · keremgezergun.com
Headquarters
Istanbul, TürkiyeRead 28 Sep 2026 · keremgezergun.com
Bot verification
Reverse and forward DNS checks help distinguish supported search bots from spoofed traffic.Read 3 Oct 2026 · keremgezergun.com
Coverage reports
It compares sitemap URLs with observed traffic to find uncrawled, orphaned or neglected URLs.Read 3 Oct 2026 · keremgezergun.com
Crawler analysis
It compares Googlebot with GPTBot, ClaudeBot, PerplexityBot and other AI agents.Read 3 Oct 2026 · keremgezergun.com
Data collection
The privacy policy says the app requires no account and contains no advertising, analytics, tracking pixels, telemetry or crash-reporting SDK.Read 3 Oct 2026 · keremgezergun.com
Error reports
It can identify 404s, 5xx responses, redirects, soft-404 candidates, parameter waste and robots.txt problems.Read 3 Oct 2026 · keremgezergun.com
Exports
Users can export filtered results as CSV or share a complete report as a single-file HTML document.Read 3 Oct 2026 · keremgezergun.com
Local processing
Selected files are processed locally in the macOS App Sandbox, and the maker says logs and analysis results are not uploaded through the app.Read 3 Oct 2026 · keremgezergun.com
Log formats
Supported formats include Apache and Nginx logs, IIS W3C, AWS CloudFront, Cloudflare Logpush NDJSON, JSON Lines access logs and AWS ALB logs.Read 3 Oct 2026 · keremgezergun.com
Network access
Network requests are limited to user-initiated sitemap or robots.txt retrieval, DNS bot verification and opening product or support links.Read 3 Oct 2026 · keremgezergun.com
Performance example
The maker reports processing a 15.4 GB production log in 40 seconds on an Apple M4 Mac with 16 GB of memory, noting results vary by hardware and settings.Read 3 Oct 2026 · keremgezergun.com
Report count
The product page lists 41 reports across crawler identity, AI crawlers, crawl budget, technical errors, coverage and freshness, visitor traffic and category analysis.Read 3 Oct 2026 · keremgezergun.com

Plans and prices

Version 1.0 Free macOS 14.4 or later · no subscription or in-app purchase Read 3 Oct 2026 · keremgezergun.com

Every Nirengi Log Analyzer plan and price →

Strong points and limits

Strong points

  • Free plan with no subscription or in-app purchase
  • Compares search bots with several AI crawlers
  • Supports Apache, Nginx, IIS, cloud, and JSON logs
  • Exports filtered CSV and complete HTML reports
  • Processes selected files locally in the app sandbox

Limits

  • Requires macOS 14.4 or later
  • No free trial is offered
  • Only macOS is listed as a platform

Who it suits

Nirengi suits technical SEO specialists, consultants, publishers, SaaS teams, and e-commerce teams using macOS. It is for users who need crawler, coverage, error, and freshness analysis from server logs.

Verdict

Nirengi Log Analyzer combines broad log-format support with reports focused on crawler behavior, crawl waste, errors, and coverage. Its free macOS distribution and local processing will appeal to teams that can work within that platform.

Where Specifiction places it

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