When to use Caddy Log Analyzer
Use this page when you need to investigate 4xx and 5xx spikes, review crawler behavior, find heavy URLs, compare request volume across time ranges, or audit suspicious IP activity after deploys and incidents.
Local AnalyzerCADDY
Caddy Log Analyzer
Caddy Log Analyzer lets you inspect raw log files in the browser without uploading data. Review JSON access logs, request timing, response volume, client sources, and abnormal paths to debug incidents, investigate crawlers, and audit production traffic faster.
Upload Log File
Drag and drop your Caddy access log. JSON and common text logs are supported.
Upload Log File
Drag and drop your Caddy access log. JSON and common text logs are supported.
Supports 100MB+ large files
Local Analyzer
Caddy Log Analyzer
Caddy Log Analyzer is built for operations, engineering, and incident review. Open a log file locally to inspect status codes, traffic patterns, abnormal paths, crawler activity, and noisy clients.
Why local caddy log analyzer matters
Production logs often contain client IPs, request paths, query strings, and internal endpoints. Local parsing keeps sensitive log data inside the browser while still giving you charts, filters, and threat signals.
Core Capabilities
- Drag and drop large access logs for fast local parsing and visualization.
- Filter by status class, request method, time range, and full-text search.
- Spot heavy paths, suspicious scans, crawler traffic, and traffic spikes quickly.
FAQ
Does Caddy Log Analyzer upload my logs?
No. Parsing, aggregation, and filtering happen locally in the browser and your raw logs are not sent to a remote server.
What can Caddy Log Analyzer measure?
It can surface traffic timelines, status distributions, PV and UV, top paths, slow requests, bandwidth, referers, user agents, and threat signals.
What investigations is Caddy Log Analyzer useful for?
It is useful for reviewing crawler requests, 404 pages, 5xx failures, hot URLs, and suspicious scan paths so you can find traffic and reliability issues faster.