Webhook vs Polling: Which Should You Use in 2026?

When your application needs to know about events in another system, you have two choices: poll for changes or receive webhooks. Each has trade-offs. Here is an honest comparison to help you decide.

## What is Polling?

Polling means asking the server "anything new?" at regular intervals. Your application sends a request every few seconds or minutes to check for updates.

"code-comment">// Polling example
setInterval(async () => {
  const response = await fetch('/api/orders?since=' + lastCheck);
  const newOrders = await response.json();
  if (newOrders.length > 0) {
    processOrders(newOrders);
  }
  lastCheck = Date.now();
}, 5000); "code-comment">// Check every 5 seconds

Pros of Polling - **Simple to implement** — Just a loop and an API call - **No server-side setup** — Works with any API - **Works with any API** — No webhook support needed

Cons of Polling - **Wastes bandwidth** — Most polls return "nothing new" - **Delayed detection** — You only find out on your next poll - **Rate limiting** — APIs limit how often you can poll - **Scales poorly** — 1,000 customers polling every 5s = 200 requests/sec

## What is a Webhook?

A webhook means the server sends you a notification when something happens. No polling needed — events arrive in real-time.

"code-comment">// Webhook endpoint (Express.js)
app.post('/webhooks', (req, res) => {
  const event = req.body;
  
  switch (event.type) {
    case 'order.created':
      processNewOrder(event.data);
      break;
    case 'payment.completed':
      confirmPayment(event.data);
      break;
  }
  
  res.status(200).send('OK');
});

Pros of Webhooks - **Real-time** — Notified instantly when something happens - **Efficient** — No wasted requests - **Scales well** — Server handles the load - **Standard format** — Standard Webhooks specification

Cons of Webhooks - **Requires endpoint setup** — You need a server listening - **Need to handle retries** — What if your server is down? - **Must verify signatures** — Security is your responsibility

## Side-by-Side Comparison

## When to Use Polling

Polling is the right choice when:

1. **The API does not support webhooks** — Some services only offer REST APIs
2. **You need very infrequent updates** — Daily or weekly checks are fine
3. **You are building a quick prototype** — Polling is faster to implement
4. **Your application is not always running** — Webhooks need a live endpoint

## When to Use Webhooks

Webhooks are the right choice when:

1. **You need real-time updates** — Payment confirmations, chat messages, alerts
2. **High volume of events** — Polling would overwhelm the API
3. **You want to reduce API calls** — Save on rate limits and costs
4. **Building production integrations** — Webhooks are the industry standard

## The Hybrid Approach

Many systems use both: webhooks for real-time updates, polling as a fallback.

"code-comment">// Primary: webhook endpoint

// Fallback: periodic poll for missed events setInterval(async () => { const missed = await fetch('/api/events?since=' + lastWebhookTime); if (missed.length > 0) { console.log('Catching up on', missed.length, 'missed events'); missed.forEach(handleEvent); } }, 60000); // Check every minute as backup ```

This gives you the best of both worlds: real-time delivery with a safety net.

## Performance Impact

Let us quantify the difference:

Scenario: 10,000 customers checking for updates

**Polling (every 5 seconds):** - 10,000 × 12 polls/minute = 120,000 requests/minute - Most return empty responses - API rate limits likely exceeded

**Webhooks:** - Only actual events generate requests - 1,000 events/day = ~1,000 requests/day - 120x more efficient

## How HookSniff Handles Both

HookSniff supports both patterns:

• **Webhook delivery** — Send events via API, HookSniff delivers them to your endpoints with retries and signatures
• **Message poller** — Poll for messages using cursor-based pagination, with consumer tracking

Whether you prefer push or pull, HookSniff has you covered.

## Conclusion

For most production use cases, webhooks are the better choice. They are more efficient, more scalable, and provide real-time updates. Polling works as a fallback or for simple prototypes.

The key is to match the approach to your needs: - **Real-time required?** → Webhooks - **Simple prototype?** → Polling - **Production system?** → Webhooks with polling fallback

Ready to try webhooks? [Get started with HookSniff for free](https://hooksniff.vercel.app/register) — 10,000 webhooks per month, no credit card required.