SEO Log File Analyzer by Kunal Dabi

What SEO Log File Analyzer by Kunal Dabi is

SEO Log File Analyzer by Kunal Dabi is a free web tool for examining Apache and Nginx server access logs. Upload one or more files to see how bots use crawl budget, which pages they reach, and how quickly the server responds. The analyzer separates requests to indexable HTML, assets, and low-value paths such as /wp-admin/. It tracks crawlers including Googlebot, Bingbot, Yahoo, DuckDuckBot, ChatGPT, Perplexity, AhrefsBot, SemrushBot, Applebot, and Bytespider. Sitemap coverage compares URLs in a sitemap with those crawled by bots, helping identify uncrawled pages.

Reports include status-code and content-type breakdowns, per-bot charts, crawl coverage, and an action plan. URL and error lists can be exported to CSV, and response times are analyzed at p50, p95, and p99 percentiles. Supported inputs include Apache Combined logs, Nginx access logs, and similar formats, including .log, .txt, and files without an extension. The maker says analysis runs locally in the session and uploaded logs are processed in memory rather than stored on its servers. The free plan is listed as forever, with 500MB+ log file size, 15+ tracked bots, and no sign-up; use requires a daily access code emailed to registered users or available from an administrator.

Who it suits

Technical SEOs, agencies, in-house SEO teams, e-commerce teams, and developers can use it to inspect crawler activity and server access logs. It suits people working with Apache or Nginx logs who want crawl coverage, bot breakdowns, and response-time reports in a web tool.

Limits

The Free Log File Analyzer plan is listed as free, billed Free forever, and includes 500MB+ log file size and 15+ bots tracked. It accepts Apache and Nginx formats and requires a daily access code.

Getting started

1. Open the SEO Log File Analyzer website.
2. Get the daily access code from the email sent to registered users or from an administrator.
3. Upload one or more supported log files.
4. Review the crawl, bot, status-code, content-type, and response-time reports.
5. Export URL or error lists to CSV if needed.

Verdict

Choose SEO Log File Analyzer by Kunal Dabi if you need free web-based analysis of Apache or Nginx logs, with crawler segmentation, sitemap coverage, and response-time percentiles. Look elsewhere if you need a tool listed for a different platform or do not have access to the daily code.