Website performance monitoring with curl

A self-hosted solution for monitoring and visualizing response time metrics of websites.

Usage

1. Supply the URLs you want to monitor in urls.txt, one URL per line.
2. Execute check.sh to collect response time metrics. Metrics are written in directory csv_metrics. Execute via cron for continuous monitoring.
3. Execute generate_reports.sh to build HTML reports with visualizations powered by Highcharts. Reports are written in directory html_reports. Execute via cron for regular updates.

How it works

check.sh simply executes curl with a custom write-out format for every given URL. The format is defined in curl_format.txt and produces a line of semicolon-separated CSV. The line is appended to a CSV file in directory csv_metrics. For every monitored URL one CSV file is produced.

generate_reports.sh takes every produced CSV files from directory csv_metrics and creates a corresponding report file in directory html_reports. In order to generate the report, the file report_template.html is copied and the CSV data pasted in. The HTML template uses the Highcharts library and its data module to display a line graph of collected metrics.