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Nirengi Log Analyzer
Istanbul, Türkiye
What it is
Nirengi Log Analyzer is a free native macOS app for examining server logs and understanding crawler activity, errors, crawl budget, coverage, content freshness, and bandwidth. It compares Googlebot with GPTBot, ClaudeBot, PerplexityBot, and other AI agents. Its reports can identify 404s, 5xx responses, redirects, soft-404 candidates, parameter waste, and robots.txt problems. Coverage reports compare sitemap URLs with observed traffic to highlight URLs that are uncrawled, orphaned, or neglected. The app supports Apache and Nginx logs, IIS W3C, AWS CloudFront, Cloudflare Logpush NDJSON, JSON Lines access logs, and AWS ALB logs. Users can export filtered results as CSV or share a complete report in a single-file HTML document. Selected files are processed locally in the macOS App Sandbox; the maker says logs and analysis results are not uploaded through the app. Version 1.0 costs nothing, requires macOS 14.4 or later, and has no subscription or in-app purchase.
For and against
For
- Compares Googlebot with AI crawlers.
- Reports on errors, crawl budget, coverage, and freshness.
- Supports Apache, Nginx, IIS, and cloud log formats.
- Exports filtered results as CSV.
- Processes selected files locally in the App Sandbox.
Against
- Requires macOS 14.4 or later.
- No free trial is listed.
- Only macOS is listed as a platform.
The verdict
Nirengi Log Analyzer brings crawler, technical-error, and coverage reporting together for server logs, with local file processing and CSV or HTML sharing. It is limited to macOS 14.4 or later.
Who it suits
The maker describes it for technical SEO specialists, consultants, publishers, SaaS teams, and e-commerce teams. It suits macOS users who want to analyze server logs locally and review crawler or coverage issues.
Plans and prices
Version 1.0
macOS 14.4 or later · no subscription or in-app purchase
Read 3 Oct 2026 · keremgezergun.com
On the record
- Bot verification
- Reverse and forward DNS checks help distinguish supported search bots from spoofed traffic.keremgezergun.com · read 3 Oct 2026
- Coverage reports
- It compares sitemap URLs with observed traffic to find uncrawled, orphaned or neglected URLs.keremgezergun.com · read 3 Oct 2026
- Crawler analysis
- It compares Googlebot with GPTBot, ClaudeBot, PerplexityBot and other AI agents.keremgezergun.com · read 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 · read 3 Oct 2026
- Error reports
- It can identify 404s, 5xx responses, redirects, soft-404 candidates, parameter waste and robots.txt problems.keremgezergun.com · read 3 Oct 2026
- Exports
- Users can export filtered results as CSV or share a complete report as a single-file HTML document.keremgezergun.com · read 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 · read 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 · read 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 · read 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 · read 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 · read 3 Oct 2026
- Purpose
- Nirengi analyzes server logs to show crawler behavior, errors, crawl budget, coverage, content freshness and bandwidth.keremgezergun.com · read 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 · read 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 · read 3 Oct 2026
