How to identify what's consuming excessive bandwidth in Sanity?

Based on your concern about bandwidth usage on your marketing site, Sanity has a built-in feature called Request Logs that's perfect for diagnosing exactly what's consuming your bandwidth.

How to Access Request Logs

1. Go to your project settings at sanity.io/manage
2. Navigate to the Usage section
3. Scroll to the bottom where you can download up to 1GB of log data from the last 7 days
4. You can request a new export every 24 hours

What You'll See

The logs come as gzipped NDJSON files with detailed information about every request, including:

• Request Type (API, APICDN, or CDN) - helps identify if it's content queries or asset downloads
• Full URL with query parameters
• GROQ Query Identifier - groups similar queries together so you can spot repeated patterns
• Remote IP - identify if traffic is coming from bots or specific sources
• User Agent and Referrer - understand what's making the requests
• Timestamp - spot usage spikes
• Bandwidth usage per request

Analyzing the Data

You can convert the logs to CSV for easier analysis:

gunzip --stdout logfile.ndjson.gz | npx json2csv --ndjson --output output.csv

Then open in Excel/Google Sheets, or use tools like jq, GROQ CLI, or even upload samples to ChatGPT for analysis help.

Common Culprits for High Bandwidth

Based on common issues others have found:

• Missing dependencies in useEffect hooks causing infinite request loops
• Bot traffic hitting your site repeatedly
• Inefficient queries fetching too much data
• Large images being delivered without optimization
• CDN not being used when it should be (check if requests show as "API" instead of "APICDN")

Pro tip: Filter out studioRequest entries - those are from your Sanity Studio and don't count toward your bandwidth costs.

The Request Logs should give you a clear picture of what's driving your bandwidth usage so you can optimize accordingly!