Network Logs

Inspect HTTP requests and responses captured with extension and replay sessions to debug API and loading issues.

Network logs show what your app sent and received during a session. Use them to debug API failures, auth issues, and slow pages.

Availability

Network logs are only available for certain capture types:

• ✅ Chrome extension recordings
• ✅ Replay-style captures (for example, Instant Replay)
• ✅ Standard customer-submitted recordings

If you don’t see a Network tab, the recording type likely doesn’t support network capture.

What gets captured

You can expect to see:

• Fetch/XHR requests
• Page navigations and redirects
• Static assets (JS, CSS, images, fonts)
• Third-party requests (analytics, CDNs)
• WebSocket connections (when present)

Per request, you typically get URL, method, status, timing, and a waterfall. You may also see headers, payload, and response data.

Where to find it

1

Open the recording

Open the recording or capture in Screendesk.

2

Open the Network tab

Click Network in the developer tools panel.

3

Filter to what matters

Start with XHR/Fetch. Then enable Errors only if needed.

How to use network logs (fast workflow)

1

Find the failing request

Look for 4xx, 5xx, or Failed.

2

Inspect details

Check Headers, then Payload, then Response.

3

Copy and reproduce

Use Copy as cURL to reproduce outside the browser.

curl 'https://api.example.com/users/12345' \
  -H 'Authorization: Bearer [REDACTED]' \
  -H 'Content-Type: application/json'

Common status codes and what to do

0 / Failed

Usually CORS, blocked requests, timeouts, or a dropped connection.

Check console logs for CORS errors. Check system info for VPN/network hints.

401 Unauthorized

Token missing or expired. Session issues are common.

Ask the user to log out/in. Check auth refresh logic.

403 Forbidden

Auth is present. Permission is not.

Check roles, entitlements, and feature flags.

404 Not Found

Bad URL or missing resource.

Check routing, environment (staging vs prod), and ID validity.

5xx Server error

Usually an engineering escalation.

Include URL, payload, response body, and timestamp in the ticket.

Privacy and security

Network logs can include sensitive data. Treat them like production logs.

Be careful with auth headers, cookies, and PII in payloads/responses.

Recommended practices:

• Restrict access to technical roles.
• Redact tokens before sharing externally.
• Avoid screenshots of raw headers/payloads.

Limitations

• Large request bodies may be truncated.
• File uploads can show as [Binary Data].
• Some third-party requests may omit bodies due to browser restrictions.
• Static assets can appear, but the full body might not be stored.

Related pages

• Console logs and Network
• System Info