Nirengi Log Analyzer
Nirengi Log Analyzer is a free native macOS app for examining server logs and crawler activity.
What Nirengi Log Analyzer is
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 nothing.
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
Watch out
- Available for macOS only
- Requires macOS 14.4 or later
Who it suits
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.
Verdict
Nirengi combines crawler, error, and coverage analysis with multiple log inputs and export options. Its macOS requirement makes platform compatibility the key consideration.
Plans and prices
From Nirengi Log Analyzer's own pricing page, checked 3 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Version 1.0 | Free | macOS 14.4 or later · no subscription or in-app purchase |
The facts
Each one read from Nirengi Log Analyzer's own pages, with the date it was checked.
What it does
- Bot verification
- Reverse and forward DNS checks help distinguish supported search bots from spoofed traffic.checked 3 Oct 2026
- Coverage reports
- It compares sitemap URLs with observed traffic to find uncrawled, orphaned or neglected URLs.checked 3 Oct 2026
- Crawler analysis
- It compares Googlebot with GPTBot, ClaudeBot, PerplexityBot and other AI agents.checked 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.checked 3 Oct 2026
- Error reports
- It can identify 404s, 5xx responses, redirects, soft-404 candidates, parameter waste and robots.txt problems.checked 3 Oct 2026
- Exports
- Users can export filtered results as CSV or share a complete report as a single-file HTML document.checked 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.checked 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.checked 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.checked 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.checked 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.checked 3 Oct 2026
- Purpose
- Nirengi analyzes server logs to show crawler behavior, errors, crawl budget, coverage, content freshness and bandwidth.checked 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.checked 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.checked 3 Oct 2026
The company
- Headquarters
- Istanbul, Türkiyechecked 28 Sep 2026
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