SEO Friendly Checker

Enter a website URL. This page will try to fetch the page (using a CORS proxy when necessary) and run a set of quick SEO checks: title, meta description, H1, canonical, robots, images alt, viewport, structured data and more. It returns a simple heuristic score and actionable notes.

Use public CORS proxy (AllOrigins) — useful when testing from browser

If fetching fails due to CORS, enable server-side proxy (see instructions at bottom).

Notes: Browser fetches can be blocked by CORS. For production use, host a tiny server-side proxy that fetches the target URL and returns its HTML (example Node.js code at the bottom of this file). This frontend is intended as a developer tool and teaching aid — it doesn't replace a full audit (Lighthouse, Screaming Frog, or server-side analyzers).

How the score is computed (heuristic)

Title present & length 30–70 chars: +15
Meta description present & length 50–160: +15
One H1 tag: +10
Canonical link: +10
Robots meta not blocking: +10
Images have alt attributes (>=60%): +10
Viewport meta present: +10
Structured data (JSON-LD) present: +10

Server proxy example (Node.js + Express)

// Save as server.js
const express = require('express');
const fetch = require('node-fetch');
const app = express();
const PORT = process.env.PORT || 3000;

app.get('/fetch', async (req, res) => {
  const url = req.query.url;
  if (!url) return res.status(400).send('Missing url');
  try {
    const response = await fetch(url, { redirect: 'follow' });
    const text = await response.text();
    res.set('Content-Type', 'text/html; charset=utf-8');
    res.send(text);
  } catch (err) {
    res.status(500).send('Fetch error: ' + err.message);
  }
});

app.listen(PORT, () => console.log('Proxy listening on', PORT));

Then call your proxy from the frontend like: /fetch?url=https://example.com