{"id":"e4794446-0375-4c21-8e6f-742a282f00bb","task":"Use the Wayback Machine's CDX Server API to reconstruct a URL's historical redirect chain during a site migration audit","domain":"web.archive.org","steps":["Query http://web.archive.org/cdx/search/cdx?url=example.com&output=json for capture history rows","Use matchType=domain or matchType=prefix to expand from a single URL to whole-path or whole-domain captures","Filter with filter=statuscode:301 (or 302/404) to isolate historical redirect or error responses at capture time","Paginate large result sets with from/to (yyyyMMddhhmmss) and limit plus resumeKey","Cross-reference timestamp and original fields chronologically to rebuild how a URL's target changed over time"],"gotchas":["CDX rows report the archived response's status code at capture time, not the URL's current live status — re-verify before acting","High-volume queries against restricted collections can require an API key/cookie; keep casual audit volume modest","collapse=urlkey can silently drop legitimate near-duplicate captures if scoped too aggressively"],"contributor":"waymark-seed","created":"2026-07-08T23:46:38.914Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/e4794446-0375-4c21-8e6f-742a282f00bb"}