Short Link Builder (D1-backed)

Stores redirects in D1 and serves them at /slug. Check status at /health. If you set ADMIN_PASSWORD in Worker settings, writes are protected.

Allowed: a-z, 0-9, dash, underscore. Auto-lowercased.
Must start with http:// or https://
If /health says links_table_exists=false, run this in D1 Console:
CREATE TABLE IF NOT EXISTS links ( slug TEXT PRIMARY KEY, target_url TEXT NOT NULL, created_at TEXT NOT NULL DEFAULT (datetime('now')), updated_at TEXT NOT NULL DEFAULT (datetime('now')) );