SmartDev Tools SEO Log File Analyzer
SmartDev Tools SEO Log File Analyzer is a free web tool for examining server access logs and crawler activity.
What SmartDev Tools SEO Log File Analyzer is
SmartDev Tools SEO Log File Analyzer is a free web tool for examining server access logs and crawler activity. Users can upload or paste Apache or Nginx access logs in combined format. The analyzer shows which crawlers visit most, what Googlebot fetches, AI bot share, and bot hits that result in 404s, redirects, or server errors. It recognizes search engine crawlers, AI bots such as GPTBot and ClaudeBot, and SEO tool crawlers including AhrefsBot and SemrushBot. The page says JavaScript reads and parses files in the browser, without uploading log lines, IP addresses, or URLs. Lines that do not use the expected combined format are counted as skipped, so files with mixed formats can still be analyzed. Files up to about 20 MB are handled comfortably; for larger logs, the FAQ suggests analyzing a recent slice. SmartDev Tools says its tools do not currently offer an API and are designed for manual, in-browser use. The analyzer has a free plan at no cost.
Good
- Reports crawler visits and Googlebot fetches.
- Highlights bot hits resulting in errors or redirects.
- Recognizes search, AI, and SEO tool crawlers.
- Processes logs in the browser without uploading them.
- Free plan at no cost.
Watch out
- Accepts Apache or Nginx combined-format logs.
- Files over about 20 MB may need to be narrowed.
- No API is currently offered.
Who it suits
The analyzer suits developers and SEO practitioners who want to inspect Apache or Nginx access logs for crawler behavior and crawl waste. It is designed for manual use in a browser rather than API-based workflows.
Verdict
SmartDev Tools SEO Log File Analyzer provides a browser-based way to review crawler activity and problematic bot hits in server logs. It is free, but the expected log format and manual workflow may not suit every setup.
Plans and prices
From SmartDev Tools SEO Log File Analyzer's own pricing page, checked 7 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Apache/Nginx combined log format · files up to about 20 MB handled comfortably |
The facts
Each one read from SmartDev Tools SEO Log File Analyzer's own pages, with the date it was checked.
What it does
- API
- SmartDev Tools says its tools do not currently offer an API and are designed for manual, in-browser use.checked 7 Oct 2026
- Audience
- The maker describes SmartDev Tools as a browser-based toolkit for developers, designers, and people working with digital files.checked 7 Oct 2026
- Business model
- SmartDev Tools says it is independently operated and funded by non-intrusive display advertising, with no subscription tiers.checked 7 Oct 2026
- Crawl analysis
- It reports which crawlers visit most, what Googlebot fetches, and bot hits resulting in 404s, redirects, and server errors.checked 7 Oct 2026
- Crawler coverage
- It recognizes search engine crawlers, AI bots including GPTBot and ClaudeBot, and SEO tool crawlers such as AhrefsBot and SemrushBot.checked 7 Oct 2026
- File size
- The FAQ says files up to about 20 MB are handled comfortably and suggests analyzing a recent slice for larger logs.checked 7 Oct 2026
- Input
- Users can paste or upload Apache or Nginx access logs in combined format.checked 7 Oct 2026
- Integrations
- The analyzer page names Apache and Nginx log formats and does not describe integrations with other services.checked 7 Oct 2026
- Local processing
- The file is read and parsed in the browser with JavaScript; the page says log lines, IP addresses, and URLs are not uploaded.checked 7 Oct 2026
- Log format behavior
- Lines in formats other than the expected combined format are counted as skipped, so mixed files can still be analyzed.checked 7 Oct 2026
- Purpose
- Analyzes server access logs to show bot traffic, top crawlers, AI bot share, and wasted crawl budget.checked 7 Oct 2026
- Support
- The contact page says it typically responds to messages within 1–2 business days and prioritizes bug reports and security issues, typically addressing them within 24 hours.checked 7 Oct 2026
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