Nirengi Log Analyzer

C tier on SEO Log File Analysis ToolsScore 6.8 · #8 of 27

Android app: Not listed
Free plan: Yes
Runs on: Mac

keremgezergun.com

Summary

Nirengi Log Analyzer is a free native macOS app for examining server logs and crawler activity. It reports on crawl budget, technical errors, coverage, content freshness, and bandwidth, and compares Googlebot with AI agents such as GPTBot, ClaudeBot, and PerplexityBot. Its reports can identify 404s, 5xx responses, redirects, soft-404 candidates, parameter waste, and robots.txt problems. Sitemap URLs can be compared with observed traffic to find uncrawled, orphaned, or neglected URLs. The app supports Apache and Nginx logs, IIS W3C, AWS CloudFront, Cloudflare Logpush NDJSON, JSON Lines access logs, and AWS ALB logs. Filtered results can be exported as CSV, and full reports can be shared as single-file HTML documents. Selected files are processed locally in the macOS App Sandbox; the maker says logs and results are not uploaded through the app. Version 1.0 requires macOS 14.4 or later and has no subscription or in-app purchase. The plan costs 0.00 USD per free.

Who it is for

The app is aimed at technical SEO specialists, consultants, publishers, SaaS teams, and e-commerce teams working with server logs. It suits users on macOS 14.4 or later who need crawler and coverage reporting.

What is good

Compares Googlebot with AI crawlers
Reports errors, crawl waste, and coverage gaps
Accepts several common server-log formats
Exports filtered results as CSV
Processes selected files locally

What to know first

Available for macOS only
Requires macOS 14.4 or later

Verdict

Nirengi combines crawler, error, and coverage analysis with multiple log inputs and export options. Its macOS requirement makes platform compatibility the key consideration.

Nirengi Log Analyzer plans and pricing

All plans

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

Compared on SEO log file analysis tools

Free plan: Yeskeremgezergun.com
Log input methods: uploadkeremgezergun.com
Crawler segmentation: Yeskeremgezergun.com
Crawl waste reports: Yeskeremgezergun.com

Facts

Purpose: Nirengi analyzes server logs to show crawler behavior, errors, crawl budget, coverage, content freshness and bandwidth.keremgezergun.com · 3 Oct 2026
Intended users: The maker describes it as a native macOS app for technical SEO specialists, consultants, publishers, SaaS teams and e-commerce teams.keremgezergun.com · 3 Oct 2026
Crawler analysis: It compares Googlebot with GPTBot, ClaudeBot, PerplexityBot and other AI agents.keremgezergun.com · 3 Oct 2026
Error reports: It can identify 404s, 5xx responses, redirects, soft-404 candidates, parameter waste and robots.txt problems.keremgezergun.com · 3 Oct 2026
Coverage reports: It compares sitemap URLs with observed traffic to find uncrawled, orphaned or neglected URLs.keremgezergun.com · 3 Oct 2026
Bot verification: Reverse and forward DNS checks help distinguish supported search bots from spoofed traffic.keremgezergun.com · 3 Oct 2026
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.keremgezergun.com · 3 Oct 2026
Log formats: Supported formats include Apache and Nginx logs, IIS W3C, AWS CloudFront, Cloudflare Logpush NDJSON, JSON Lines access logs and AWS ALB logs.keremgezergun.com · 3 Oct 2026
Exports: Users can export filtered results as CSV or share a complete report as a single-file HTML document.keremgezergun.com · 3 Oct 2026
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.keremgezergun.com · 3 Oct 2026
Data collection: The privacy policy says the app requires no account and contains no advertising, analytics, tracking pixels, telemetry or crash-reporting SDK.keremgezergun.com · 3 Oct 2026
Network access: Network requests are limited to user-initiated sitemap or robots.txt retrieval, DNS bot verification and opening product or support links.keremgezergun.com · 3 Oct 2026
Support: The developer offers direct support by email or phone and asks users not to send production logs before removing confidential information.keremgezergun.com · 3 Oct 2026
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.keremgezergun.com · 3 Oct 2026