Network Debugging: Redirect Chains, WebSocket Frames, and Postman Collections

Redirect chains

SEO migrations and login flows often bounce through several URLs. The URL Redirect Chain Checker requests each hop through the DevTools proxy (with a network disclosure) so you see status codes, Location headers, and timing — without blind auto-follow.

WebSocket frames

When you capture binary frames from devtools or Wireshark, paste hex into the WebSocket Frame Parser. It decodes opcode, mask bit, and UTF-8 payloads per RFC 6455.

Postman collections

Draft API smoke tests in the Postman Collection Builder and copy v2.1 JSON for import into Postman or Newman.

CSV preview

For spreadsheet sanity checks, the CSV Data Viewer renders pasted CSV as a table with delimiter options — no file upload.