Access Log Analyzer

What Does the Access Log Analyzer Do?

The Access Log Analyzer is a pure frontend tool for parsing Apache and Nginx server access logs. Paste log content or drag-and-drop a log file to quickly get PV/UV statistics, status code distribution, top URL rankings, source IP rankings, request method distribution, and hourly request trends. All data is processed locally in your browser — log content is never uploaded to any server, ensuring your server information stays secure.

Core Features

• Smart Format Detection: Auto-detects Apache Combined Log and Nginx default formats, no manual configuration needed
• PV/UV Statistics: Accurately calculate page views and unique visitors based on IP deduplication
• Status Code Distribution: Visual breakdown of 2xx/3xx/4xx/5xx status codes
• Top 10 URLs/IPs: Quickly identify high-traffic paths and anomalous sources
• Hourly Trends: 24-hour request distribution bar chart to identify traffic peaks

How to Use

Step 1: Paste Apache/Nginx access log content in the input area, or drag a .log file to the upload zone.

Step 2: Click "Analyze" or use Ctrl+Enter. The tool auto-detects the log format and parses it.

Step 3: View statistics including PV/UV, status codes, top URLs/IPs, and hourly trends.

Step 4: Click "Copy Report" or "Download Report" to save results. Shortcut: Ctrl+Shift+C.

Use Cases

Ops Monitoring

Quickly analyze server access logs to understand traffic patterns and detect anomalous requests for capacity planning and security auditing.

SEO Analysis

Track URL access volumes, identify high-traffic pages and 404 errors, optimize site structure and content strategy.

Security Auditing

Discover abnormal high-frequency IPs and large volumes of 4xx/5xx requests to quickly identify potential attacks.

Performance Tuning

Analyze hourly request trends to identify peak traffic periods for cache strategy and server scaling decisions.

Extended Knowledge

Apache Combined Log Format: %h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i". %h is remote host, %t is timestamp, %r is request line, %>s is status code. Nginx default format is similar. Common status codes: 200 OK, 301/302 redirect, 404 Not Found, 500 Server Error. PV (Page View) counts page views; UV (Unique Visitor) deduplicates by IP.

FAQ