What Are Push Notifications? The Complete Guide for 2026
Push notifications are short, clickable messages that appear directly on a person's screen — on the phone lock screen, in the notification tray, or at the corner of a desktop. Web push notifications are the website version: visitors subscribe with one click on your site, and you can reach them later even when they're not browsing your site.
In this guide we'll cover how web push works, where it's supported (including iPhone), and why US publishers and stores use it to win back traffic.
How web push notifications work
Web push is built on open web standards — the Push API and service workers — supported by every major browser. The flow looks like this:
- Opt-in: a visitor clicks "Allow" on your website's subscribe prompt.
- Subscription: the browser creates an anonymous push endpoint (no email or phone number involved).
- Send: when you publish a campaign, your push service (like JeetPush) delivers the message through Google, Apple or Mozilla's push servers.
- Display & click: the notification pops up with your title, message, icon and image. One tap brings the user back to the URL you chose.
Key point: web push is permission-based. Only people who explicitly clicked "Allow" ever receive your notifications — that's why engagement is high.
Web push vs app push vs email
| Web Push | App Push | ||
|---|---|---|---|
| Requires install? | No | Yes (mobile app) | No |
| User data needed | None | App account | Email address |
| Typical CTR | High (lands on screen) | High | Low (inbox competition) |
| Spam folder risk | None | None | High |
| Cost to start | Free | App development $$$ | Low–medium |
Which browsers and devices support push notifications?
- Chrome, Edge, Firefox, Opera — full support on Windows, macOS, Linux and Android.
- Safari on macOS — supported (macOS 13+ uses the web standard).
- iPhone & iPad — supported since iOS 16.4 via Safari, after the user adds your site to their Home Screen (Apple's announcement).
That covers the overwhelming majority of US internet users — desktop and mobile.
What are push notifications used for?
- Publishers & blogs: notify subscribers the moment a story goes live (automate it with RSS-to-push).
- E-commerce: flash sales, back-in-stock alerts, abandoned-cart reminders.
- SaaS & services: product updates, webinar reminders, billing notices.
- Local US businesses: weekend offers, event announcements, seasonal promos.
For concrete tactics, see our push notification marketing strategies.
Are push notifications effective?
Because notifications land directly on the screen instead of a crowded inbox, click-through rates typically run several times higher than email marketing. Opt-in is one click (versus typing an email address), so lists grow faster too. The trade-off: respect is mandatory — over-sending leads to unsubscribes, so use segmentation and quiet hours.
How do I get started?
You don't need a developer. With JeetPush you create a free account, paste one script tag on your site, and you're live. Follow the step-by-step setup guide — it takes about 10 minutes.
FAQ
What's the difference between web push and app push?
App push requires users to install your mobile app. Web push works from your website through the browser — no app, no download, no app-store approval.
Do web push notifications work when the browser is closed?
On Android and Windows, generally yes — the OS can wake the browser process. On macOS/iOS, the browser or installed web app must be running in the background.
Are push notifications free?
Browser vendors don't charge for delivery. Service pricing varies — JeetPush is free with unlimited sends.