Website Monitoring with Screenshot API

Detect visual changes, catch layout regressions, and monitor competitor pages automatically. Scheduled screenshot captures give you a pixel-level audit trail of any website over time.

What Can You Monitor?

Your own site: catch deployment regressions before users report them. Take screenshots of critical pages after every deploy — homepage, pricing, checkout, login — and compare against a known-good baseline. Any significant pixel diff triggers an alert before you affect real customers.

Competitor pricing: schedule daily captures of competitor pricing pages. Extract the text content and store it in a database. When pricing changes — a new plan tier, a price increase, a promotion — your pipeline detects it and alerts your team automatically.

Content compliance: for regulated industries, screenshot key pages on a schedule to maintain an audit trail. Capture the exact rendered state that users see — including JavaScript-rendered disclaimers and consent banners — not just the raw HTML source.

Cron-Based Monitoring Script

// monitor.mjs — run via cron every hour
import { writeFile, readFile, access } from 'fs/promises';

const KEY = process.env.SNAPAPI_KEY;
const PAGES = [
  { name: 'homepage', url: 'https://yoursite.com' },
  { name: 'pricing', url: 'https://yoursite.com/pricing' },
  { name: 'checkout', url: 'https://yoursite.com/checkout' },
];

async function capture(url) {
  const res = await fetch('https://api.snapapi.pics/v1/screenshot', {
    method: 'POST',
    headers: { 'X-Api-Key': KEY, 'Content-Type': 'application/json' },
    body: JSON.stringify({ url, width: 1280, height: 800, waitUntil: 'networkidle' }),
  });
  return (await res.json()).url;
}

for (const page of PAGES) {
  const screenshotUrl = await capture(page.url);
  console.log(`${page.name}: ${screenshotUrl}`);
  // Store to your database with timestamp
  // await db.insert({ page: page.name, url: screenshotUrl, capturedAt: new Date() });
}

Change Detection with Text Extraction

// Extract text content and detect changes
const res = await fetch('https://api.snapapi.pics/v1/scrape', {
  method: 'POST',
  headers: { 'X-Api-Key': KEY },
  body: JSON.stringify({
    url: 'https://competitor.com/pricing',
    waitUntil: 'networkidle',
  }),
});
const { text } = await res.json();

// Compare against previous snapshot from DB
const previous = await db.getLatest('competitor-pricing');
if (previous && previous.text !== text) {
  await sendAlert(`Competitor pricing changed! Review: ${screenshotUrl}`);
}
await db.save({ page: 'competitor-pricing', text, screenshotUrl });

Pricing

Free: 200 captures/month (enough for daily monitoring of 6 pages). Starter $19/mo: 5K (hourly monitoring of 6 pages). Pro $79/mo: 50K (5-minute monitoring of multiple sites). Start free.