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© Nutter Toolsnutter.tools
  1. Home
  2. Network
  3. Web server log analyzer
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Web server log analyzer

Drop or paste Apache, Nginx, IIS W3C, or JSON access logs and get status, path, client, and byte summaries, p50, p95, and p99 latency, a timeline, and flagged suspicious patterns.

This tool is in beta

Still being tested. If a result looks wrong, tell us.

Report a problem

Access logs

No logs yet

Add a log and press Analyse. The sample log exercises every section on safe fake data.

Findings here are surfaced for triage, not declared an attack: a pattern matched the request line, and the report says so when such a request actually returned 2xx. A clean result only means nothing on the pattern list appeared in the logs you loaded. It says nothing about the traffic that was never logged, and scanning your own logs never sends a packet to the addresses inside them.

Log Analyzer

Applies to the Apache trailing field and JSON latency keys. IIS time-taken is always milliseconds.
Offsets written into the log always win. Results are reported in UTC.

Parses in this tab. Up to 25 files and 8,000,000 characters of text per run, 500 rows per list. The first recorded client address wins; X-Forwarded-For is ignored.

Runs on this device. Nothing is uploaded.

More network tools

  • CloudTrail analyzer
  • HTTP timing probe
All network tools

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