A fast, single-file web app that generates YouTube backlink URLs from a remote template list and archives each backlink via:

• Wayback Machine (web.archive.org/save)
• archive.today family — one random TLD per backlink chosen from:
  archive.today, archive.li, archive.vn, archive.fo, archive.md, archive.ph, archive.is

Everything runs client-side (Vanilla JS). No server, no build step.

• Paste YouTube URL or 11-char video ID → auto-extract ID → canonicalise to https://www.youtube.com/watch?v=ID
• Fetch YouTube backlink templates from a remote JSON and expand placeholders
• Archive runners:
  • IFRAME (default) — visible grid (nice for monitoring)
  • Popup or Tab — with fresh (open→go→wait→close) or reuse modes
• Concurrency control — run multiple archive tasks in parallel
• 3-minute rule — mark success on load, otherwise timeout as failure
• Shuffle order and optional Repeat after completion
• Shareable URL — ?VIDEOID auto-starts with the provided video
• Download backlinks — one-per-line .txt of original backlink URLs (not the archive wrappers)
• Persisted settings — saved in localStorage
• Mobile-friendly, keyboard accessible UI