drwho.me

Minimal, fast network and developer tools at drwho.me. Operated by Hikmah Technologies.

Stack

Next.js 15 · TypeScript (strict) · Tailwind v4 · Biome · Vitest · Playwright · Vercel.

Dev

pnpm install
pnpm dev           # http://localhost:3000
pnpm test          # unit
pnpm test:e2e      # e2e
pnpm lint          # biome
pnpm typecheck
pnpm build
pnpm lh           # Lighthouse CI (perf/seo ≥ 95)

Env vars

Set in Vercel dashboard (do not commit):

MCP

A remote MCP endpoint lives at /mcp/mcp (Streamable HTTP). The handshake and tool listing are open; tools/call is paywalled (HTTP 402, JSON-RPC error -32001) until the paid tier opens. See /mcp on the site for config snippets and the waitlist.

Dossier

• /d/<domain> streams 10 independent checks (DNS, MX, SPF, DMARC, DKIM, TLS, redirects, headers, CORS, web-surface) as a single dossier.

• Append ?refresh=1 to bypass caches and revalidate that dossier load.

• Rate limits (per client IP): 30 /d/<domain> loads per hour, plus a separate 60/hour shared bucket across the standalone dossier tool pages (/tools/dns-records-lookup, /tools/mx-lookup, /tools/spf-checker, etc.). Unset Upstash env vars disable rate limiting (dev default).

• Abuse-prone targets are rejected at the route + MCP layer via a committed denylist in lib/dossier/denylist.ts.

Layout

• app/ — routes. app/tools/[slug] is the single dynamic route for every tool.

• components/ — UI. components/tools/* wraps pure logic from lib/tools/*.

• content/tools.ts — tool registry, single source of truth.

• lib/tools/*.ts — pure-function tool logic (reused by web + MCP in Plan 4).

• docs/superpowers/ — specs + plans.

Deploy

Push to main → Vercel auto-deploys. PRs → preview deploys. Set the env vars above in Vercel before first deploy (except the Plan-deferred ones).

Credits

Favicon: owl icon by Lorc via game-icons.net, licensed under CC BY 3.0.