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WebPush Hub by CTIMEXICO allows your visitors to subscribe to native browser push notifications with a single click. Every time you publish new content, they receive an automatic notification on their mobile or desktop device, without needing to provide an email address or create an account.
How it works
<ol>
<li>A few seconds after landing on your site, the visitor sees a small popup in the bottom-right corner asking if they want to receive alerts about new content.</li>
<li>If they accept, the browser displays its native permission dialog.</li>
<li>From that point on, every time you publish a post, all active subscribers receive a native push notification on their device.</li>
</ol>
Main features
<ul>
<li>No email addresses or user registration required</li>
<li>No dependency on third-party services such as OneSignal or Firebase</li>
<li>Compatible with Chrome, Firefox, Edge and Safari (iOS 16.4+)</li>
<li>Fully customizable popup: text, background color and text color</li>
<li>Site favicon displayed inside the popup</li>
<li>Admin panel with active subscriber count</li>
<li>Test notification button in the admin panel</li>
<li>Automatic sending when any post is published</li>
<li>Expired subscriptions are removed automatically</li>
<li>Full WordPress Multisite support</li>
<li>Each subsite can be individually activated or paused</li>
</ul>
Technical implementation
The plugin implements the VAPID protocol (RFC 8292) and aes128gcm encryption (RFC 8291) natively using only standard PHP extensions, with no additional libraries or Composer required.
Server requirements
<ul>
<li>PHP 8.1 or higher</li>
<li>PHP extensions: openssl, curl, json, mbstring (available by default on any modern hosting)</li>
<li>WordPress installed with active HTTPS (required for Service Workers)</li>
</ul>
<h3>Important Notes</h3>
WordPress Multisite
This plugin is optimized for multisite environments. When activated network-wide, it automatically configures the database and VAPID keys across all existing subsites without any manual intervention. Each subsite maintains its own subscriber list and its own configuration.
To pause the plugin on a specific subsite without uninstalling it, simply uncheck the “Enabled on this site” option under Settings > Push Notifications on that subsite. This stops the popup and notification sending only for that site, without affecting the rest of the network.
Cache plugin compatibility
If your installation uses cache plugins such as WP Super Cache or Autoptimize, you must clear the cache after installing or updating the plugin for the changes to take effect.
From the WordPress dashboard:
<ol>
<li>WP Super Cache > Settings > WP Super Cache > click “Delete Cache for All Blogs”.</li>
<li>Autoptimize > Settings > Autoptimize > click “Save Changes & Empty Cache” (no changes needed, just save).</li>
</ol>
Via SSH terminal (recommended for multisite):
<pre><code>sudo rm -rf /path/to/wordpress/wp-content/cache/supercache/*
sudo rm -rf /path/to/wordpress/wp-content/cache/autoptimize/BLOG_ID/*
</code></pre>
Replace <code>BLOG_ID</code> with your subsite identifier number (for example, <code>3</code> for the third subsite in the network).
Recommended Autoptimize configuration
Autoptimize can interfere with the plugin if the inline JS deferral option is enabled. To avoid issues, choose one of these options under Settings > Autoptimize > JavaScript:
<ul>
<li>Disable the “Also defer inline JS” option, or</li>
<li>Keep it enabled and add <code>MNPush</code> to the “Exclude scripts from Autoptimize” field.</li>
</ul>
<h3>External Services</h3>
This plugin communicates with third-party browser push notification services to deliver notifications to your subscribers. No additional server is required on your end — the only cost is that when you publish a post, your WordPress site makes one HTTP request per subscriber to the browser vendor’s push service. With a few thousand subscribers, this is negligible.
The following external services may receive data when notifications are sent:
Google Firebase Cloud Messaging (FCM) 
Used to deliver push notifications to Chrome and other Chromium-based browsers. 
Data sent: encrypted notification payload, subscriber endpoint URL. 
Sent when: a new post is published and Chrome users are subscribed. 
– Terms of Service: https://firebase.google.com/terms 
– Privacy Policy: https://policies.google.com/privacy
Mozilla Push Service 
Used to deliver push notifications to Firefox browsers. 
Data sent: encrypted notification payload, subscriber endpoint URL. 
Sent when: a new post is published and Firefox users are subscribed. 
– Terms of Service: https://www.mozilla.org/en-US/about/legal/terms/firefox/ 
– Privacy Policy: https://www.mozilla.org/en-US/privacy/firefox/
Apple Push Notification service (APNs) 
Used to deliver push notifications to Safari browsers on iOS 16.4+ and macOS Ventura+. 
Data sent: encrypted notification payload, subscriber endpoint URL. 
Sent when: a new post is published and Safari users are subscribed. 
– Terms of Service: https://developer.apple.com/terms/ 
– Privacy Policy: https://www.apple.com/legal/privacy/
All notification payloads are end-to-end encrypted using the aes128gcm standard (RFC 8291) before being sent to any external service. The browser vendor cannot read the content of the notifications.

WebPush Hub by CTIMEXICO

Native Web Push notifications for WordPress. Notify subscribers automatically when new content is published. No third-party services required.

SmartPush

SmartPush is a leading provider of web push notification services that helps businesses re-engage with their potential customers and maximize the leads. We’ve sent more than 76B notifications and reliably delivered over 14B push messages globally, supporting our partners across multiple platforms.
SmartPush is highly scalable, secure, easy-to-use, and comes with all the features you need to retain your visitors and enhance customer engagement. To make the push notification experience even more enriching for our customers, we are going to integrate AI features into some parts of our platform to ensure a more optimized and data-driven push strategy.
<h3>Powerful Features from SmartPush</h3>
<h3>Simple Setup</h3>
Setting up SmartPush is quick and easy! Simply sign up, paste the SmartPush snippet code, and you’re ready to go!
<h3>Advanced Segmentation</h3>
With SmartPush, you get advanced segmentation tools to better understand user flow and target them with the most relevant messages based on multiple segments.
<h3>Scalable Business Model/Unlimited Subscribers</h3>
We offer a scalable subscription model you need for growing your business globally. You are free to increase your subscribers without limits and scale up your business quickly and effectively.
<h3>Custom Subscription Parameters</h3>
Custom segments are a great way to target specific customer journeys and use these data for reaching users with more relevant and personalized push campaigns.
<h3>Language and Country Customization</h3>
Web push notifications create even more value when they are sent at times and in the language that would be the most comfortable for users. Take the benefit of our Language and Country optimization feature to optimize your push content based on different languages and countries.
<h3>End-to-End Encryption Technology</h3>
Our end-to-end encryption technology adds an additional layer of security to your messages, ensuring that all push communications are highly protected and readable only at the sender and the receiver side.
<h3>Pricing Plans</h3>
Learn about our pricing plans here: <a href="https://www.smartpush.ai/#pricing" rel="nofollow ugc">https://www.smartpush.ai/#pricing</a>
<h3>Migration from OneSignal and Other Push Notification Platforms</h3>
What makes SmartPush stand out from other push notification services is the value-based pricing model, where customers pay for actually delivered messages only, without wasting their budget on subscribers who are not active.
While this gives us an edge over OneSignal and other platforms as a more effective and cheaper push notification platform, this is not the only advantage you get with us. With SmartPush, you can enjoy the benefit of migrating your subscriber database fast, easy.
Users who come to your site and have opted in to receive push notifications will automatically be added to your list of subscribers once you have the SmartPush plugin installed on your website.

SmartPush – Free Web Push Notifications

Web push notifications for your website. Available in Chrome & Firefox (desktop) with support for Android and Safari coming soon.

WebPush Hub by CTIMEXICO vs SmartPush – Free Web Push Notifications