Baseline 2023

Newly available

Since March 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Web Workers.

The PushSubscription interface of the Push API provides a subscription's URL endpoint and allows unsubscribing from a push service.

An instance of this interface can be serialized.

Instance properties

PushSubscription.endpoint Read only

A string containing the endpoint associated with the push subscription.

PushSubscription.expirationTime Read only

A DOMHighResTimeStamp of the subscription expiration time associated with the push subscription, if there is one, or null otherwise.

PushSubscription.options Read only

An object containing the options used to create the subscription.

PushSubscription.subscriptionId Deprecated Read only Non-standard

A string containing the subscription ID associated with the push subscription.

Instance methods


Returns an ArrayBuffer which contains the client's public key, which can then be sent to a server and used in encrypting push message data.


Standard serializer — returns a JSON representation of the subscription properties.


Starts the asynchronous process of unsubscribing from the push service, returning a Promise that resolves to a boolean value when the current subscription is successfully unregistered.


navigator.serviceWorker.ready.then((reg) => {
  reg.pushManager.getSubscription().then((subscription) => {
      .then((successful) => {
        // You've successfully unsubscribed
      .catch((e) => {
        // Unsubscribing failed


Push API
# pushsubscription-interface

Browser compatibility

BCD tables only load in the browser

See also