Google Index Checker#

Check the number of indexed pages for any domain(s) using Google's site: search operator via Chrome Remote Debugging Protocol (CDP) on localhost:9222.

Prerequisites#

• Chrome running with --remote-debugging-port=9222
• Node.js with ws npm package available at /tmp/wsclient/node_modules/ws
  • Install once: npm install ws --prefix /tmp/wsclient
  • If not found, install before starting

Connection Info#

• CDP HTTP endpoint: http://localhost:9222/json
• Important: Use localhost:9222, NOT 127.0.0.1:9222 — Chrome listens on IPv6 ::1, not IPv4 127.0.0.1
• All browser tabs share the same cookie/login session (same Chrome profile)
• After each task, close all tabs and clean up /tmp/wsclient

Instructions#

Step 1: Parse user input#

Extract the domain(s) to check. Accept:

• Single: example.com, www.example.com, https://example.com
• Multiple: comma-separated, space-separated, or line-by-line
• Normalize: strip protocol and trailing slashes

Step 2: Prepare browser connection#

1. Install ws if needed: npm install ws --prefix /tmp/wsclient
2. Create one CDP tab: PUT http://localhost:9222/json/new
3. Save the webSocketDebuggerUrl from the response

Step 3: Query each domain (reuse same tab)#

For each domain, use Page.navigate in the same tab (do NOT create new tabs):

1. Page.navigate → https://www.google.com/search?q=site:{domain}
2. Wait for Page.loadEventFired + 3 seconds
3. Runtime.evaluate → document.getElementById('result-stats')?.textContent
4. Parse count from text like "找到约 12,700 条结果" using regex /找到约 ([\d,]+) 条结果/
5. Strip commas → integer

Step 4: Present results#

Single domain

text

**{domain}** has approximately **{count}** pages indexed by Google.

Multiple domains

markdown

## Google Index Coverage Report ({date})

| Domain | Indexed Pages | Notes |
|--------|--------------|-------|
| example.com | 13,200 | — |
| example.org | 8,500 | — |
| example.net | 1,200 | — |

Data source: Google `site:` search operator (approximate values)

Step 5: Clean up#

1. Close the tab: DELETE http://localhost:9222/json/close/{targetId}
2. Verify: GET http://localhost:9222/json should return []
3. Remove temp package: rm -rf /tmp/wsclient

CDN Script Template (copy-paste ready)#

javascript

const WebSocket = require('/tmp/wsclient/node_modules/ws');
const http = require('http');

function cdpSend(ws, id, method, params) {
  return new Promise(resolve => {
    const handler = data => {
      const msg = JSON.parse(data);
      if (msg.id === id) resolve(msg);
    };
    ws.on('message', handler);
    ws.send(JSON.stringify({id, method, params}));
  });
}

function extractCount(text) {
  if (!text) return 'NOT_FOUND';
  const m = text.match(/找到约 ([\d,]+) 条结果/);
  return m ? m[1].replace(/,/g, '') : 'PARSE_ERROR:' + text;
}

async function main() {
  // 1. Create one tab
  const target = await new Promise((resolve, reject) => {
    const req = http.request({hostname: 'localhost', port: 9222, path: '/json/new', method: 'PUT'}, res => {
      let d = ''; res.on('data', c => d += c); res.on('end', () => resolve(JSON.parse(d)));
    });
    req.on('error', reject); req.end();
  });

  // 2. Connect WebSocket
  const ws = new WebSocket(target.webSocketDebuggerUrl);
  await new Promise(r => ws.on('open', r));
  await cdpSend(ws, 1, 'Page.enable', {});
  await cdpSend(ws, 2, 'Runtime.enable', {});

  // 3. Loop through domains
  const domains = [['Name', 'example.com']]; // Replace with actual domains
  for (const [name, domain] of domains) {
    await cdpSend(ws, 10, 'Page.navigate', {url: 'https://www.google.com/search?q=site:' + domain});
    await new Promise(resolve => {
      ws.on('message', data => {
        const msg = JSON.parse(data);
        if (msg.method === 'Page.loadEventFired') resolve();
      });
    });
    await new Promise(r => setTimeout(r, 3000));
    const r = await cdpSend(ws, 11, 'Runtime.evaluate', {expression: "document.getElementById('result-stats')?.textContent || 'NOT_FOUND'"});
    console.log(name + '|' + domain + '|' + extractCount(r.result.result.value));
  }

  // 4. Cleanup
  ws.close();
  http.request({hostname: 'localhost', port: 9222, path: '/json/close/' + target.id, method: 'DELETE'}, () => {}).end();
  await new Promise(r => setTimeout(r, 1000));

  // 5. Verify tabs closed
  const remaining = await new Promise((resolve, reject) => {
    const req = http.request({hostname: 'localhost', port: 9222, path: '/json', method: 'GET'}, res => {
      let d = ''; res.on('data', c => d += c); res.on('end', () => resolve(JSON.parse(d)));
    });
    req.on('error', reject); req.end();
  });
  console.log('Tabs remaining:', remaining.length);
  process.exit(0);
}

main().catch(e => { console.error(e); process.exit(1); });

Edge Cases#

ProblemSolution#result-stats not foundTry div[id^=result] or document.body.innerTextGoogle CAPTCHATake screenshot, stop, report to user0 resultsCheck if site is new or blocked by robots.txtlocalhost:9222 returns 404Chrome not started with --remote-debugging-port=9222Tabs accumulateAlways close tab after use, verify with GET /json

Important Notes#

• The site: operator returns approximate values, not exact counts
• Results vary between Google data centers
• For precise data, use Google Search Console
• One tab, sequential navigation — do NOT create new tabs per domain