SEO Skill Server Log Analyzer
SEO Skill Server Log Analyzer is a free tool for examining server access logs and identifying activity attributed to Googlebot, Bingbot, and AI crawlers.
What SEO Skill Server Log Analyzer is
SEO Skill Server Log Analyzer is a free tool for examining server access logs and identifying activity attributed to Googlebot, Bingbot, and AI crawlers. It accepts combined Apache or NGINX logs and JSONL or NDJSON exports up to 250 MB. The browser processes the raw log locally; it does not upload the log or keep a searchable copy. Results group requests by crawler family, URL path, and HTTP status, remove query strings from paths, and show the first and last valid request dates in the file. CSV exports provide crawler summaries, paths, errors, and status codes, but leave out raw requests and full user-agent strings. The same parser can run from a terminal and return JSON or a selected CSV table, for use in scripts, agents, spreadsheets, or other analysis tools. A user-agent match only tells you how a request identified itself, not which company sent it. Malformed rows or processing limits can leave results incomplete, so missing crawler activity in a partial result is unknown.
Good
- Free plan is available.
- Accepts Apache, NGINX, JSONL, and NDJSON logs.
- Processes raw logs in the browser without uploading them.
- Exports crawler summaries, paths, errors, and status codes.
- Terminal parser can return JSON or CSV.
Watch out
- Files are limited to 250 MB.
- CSV exports omit raw requests and full user-agent strings.
- User-agent matches do not verify the request sender.
- Malformed rows or processing limits can yield partial results.
Who it suits
It suits people with a combined or JSONL access log who need evidence of requests reaching their server. The terminal workflow may fit those who need repeatable analysis in a script or agent.
Verdict
SEO Skill Server Log Analyzer provides grouped crawler summaries and export options for common server-log formats, with browser-based local processing. Treat absent crawler activity cautiously when the results may be partial, and remember that a matching user-agent string does not confirm who sent a request.
The facts
Each one read from SEO Skill Server Log Analyzer's own pages, with the date it was checked.
What it does
- Accepted logs
- It opens combined Apache or NGINX logs and JSONL or NDJSON exports, with a stated upload limit of 250 MB.checked 8 Oct 2026
- Agent and script use
- The maker says JSON output can be used by an agent or script.checked 8 Oct 2026
- Analysis limits
- The documented command accepts explicit row, path, and returned-detail limits for log analysis.checked 8 Oct 2026
- Crawler identity caveat
- A matching user-agent string reports what a request claimed to be and does not prove which company sent it.checked 8 Oct 2026
- Crawler summaries
- It groups requests by crawler family, URL path, and HTTP status, removes query strings, and shows the first and last valid request dates.checked 8 Oct 2026
- CSV exports
- It exports crawler summary, crawler paths, crawler errors, and status codes; exports omit raw requests and full user-agent strings.checked 8 Oct 2026
- Date range
- It shows the first and last valid request dates found in the file.checked 8 Oct 2026
- Export contents
- CSV exports contain crawler aggregates and omit raw requests and full user-agent strings.checked 8 Oct 2026
- Grouping
- The analyzer groups requests by crawler family, URL path, and HTTP status, and removes query strings from paths.checked 8 Oct 2026
- Input caveat
- User-agent matches show what a request claimed to be and do not prove which company sent it.checked 8 Oct 2026
- Integrations
- The terminal command's JSON output is described as useful for an agent or script, and CSV output can be used in a spreadsheet or another analysis tool.checked 8 Oct 2026
- Intended users
- The report is for people who have a combined or JSONL access log and need evidence of real server requests.checked 8 Oct 2026
- Local processing
- The raw log is processed in the browser and is not uploaded or kept as a searchable copy.checked 8 Oct 2026
- Partial results
- Malformed rows or processing limits can produce partial results, and missing crawler activity in those results should be treated as unknown.checked 8 Oct 2026
- Privacy
- The analyzer processes logs in the browser and says it does not upload logs or keep a searchable copy of raw requests.checked 8 Oct 2026
- Purpose
- The browser analyzer finds Googlebot, Bingbot, and AI crawler activity in server access logs.checked 8 Oct 2026
- Supported files
- It accepts combined Apache or NGINX logs and JSONL exports up to 250 MB.checked 8 Oct 2026
- Terminal use
- The same parser can be run from the terminal and return JSON or a selected CSV table.checked 8 Oct 2026
- Who it is for
- The maker describes the terminal workflow as useful for an agent or script that needs repeatable server log analysis.checked 8 Oct 2026
The company
- Maker
- SEO Skill identifies itself as a joint by Ian Nuttall; the opened pages do not state a headquarters or founding date.checked 8 Oct 2026
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