bigboomdesign

GregGay

The alert is quickly styled and placed on your site, and easily closed by your site visitors should they choose to dismiss it.
<h4>Styling</h4>
You can customize the look of your alert message in a few ways.
<ul>
<li>Use a simple color picker to select text and background colors for the message (no coding necessary)</li>
<li>Add additional CSS in the plugin options if needed</li>
</ul>
<h4>Placement</h4>
You can specify where the alert should go within your site layout in a few different ways.
<ul>
<li>Use any unique CSS-style selector (e.g. #my-div) to choose where to insert the message, or leave this blank to insert at the top of your site’s body</li>
<li>Choose to insert the alert message either before or after your chosen page element (default is before)</li>
<li>Use the shortcode [albar_alert] to insert the message anywhere within the content of any page or post</li>
</ul>
<h4>Locations</h4>
The plugin gives you several choices as to which screens should show your message.
<ul>
<li>Show on all pages</li>
<li>Show on the home page (whether it be a page or your recent posts)</li>
<li>Show for only certain page/post ID’s</li>
</ul>

Big Boom Alert Bar

I needed to post an alert on every page on a site and this was very simple - and I love the 'close' button so the user can get rid of it.


GREAT alert bar

Adds an alert message to your site's front end, anywhere within the site layout

Krishna Dhakad

Vivek Soni

Our “Site Notify plugin” gives you custom notifications and alerts without any struggle. Notify anyone about any action in your WordPress. You can customize your messages without any difficulty. You can quickly set up notifications in your WordPress admin through the “Site notify” settings. This plugin is used in the multi-vendor site very effectively.
Generally, Notifications appear at the top of the screen and center of the page. They carry important announcements or messages and alert for users. They can be used for offers, discounts, messages, or important announcements and can effectively notify message to users. If your website is built with WordPress, you must use our Site Notify plugin.
Site Notify plugin has 5 easy custom settings and is very easy to configure.
<ul>
<li>General Settings:</li>
</ul>
In a general setting, the user can simply toggle notifications on or off and provide different types of notifications “Success, Danger, Info, Simple, Warning, and Custom Types” as per the requirement either above the header or below the header can be set and can be opened in a new window or in the same window.
<ul>
<li>Title settings:</li>
</ul>
Headline settings allow you to customize “headline text, headline tags, margins, and padding”.
<ul>
<li>Sub Headline Settings:</li>
</ul>
Sub Headline Settings allow you to customize the Sub headline text, Sub headline tags, margins, and padding.
<ul>
<li>Content Settings:</li>
</ul>
Content settings allow you to customize the content text you want to change, and also change the font size, line height, margins, and padding.
<ul>
<li>Advance Settings:</li>
</ul>
Advance settings allow to display the notification whether the message on the website is displayed on the entire site or on the front/home page. 
Set the notification by user role to which user to show the notification “Contributor, Author, Editor, Administrator, Subscriber, etc. These user role show default in Site Notify plugin and change automatically as per website uses example if website is e-commerce user role name is change as per rule. 
In advance setting, you can easily display the notification on every page load or only once on page load and toggle or popup notification also.
Note:
After installing this plugin go to the WordPress plugin option, activate this plugin, and click on the setting for turning on notifications in general setting.
Feature:
<ul>
<li>Different user role set</li>
<li>Show notification on entire site or on Home page.</li>
<li>5 different type of alert or notify message.</li>
<li>Set notify time load on every time or on one time.</li>
<li>Change heading, subheading text and tags easily.</li>
<li>Change content text easily.</li>
<li>Set margin or padding.</li>
<li>Toggle or popup notification</li>
</ul>
<a href="https://gaurish.com/site_notify_plugin/" rel="nofollow ugc">Documentation:</a>

Site Notify


thank you for this usefull and great plugin


very nice plugin

Good one

Nice Plugin

Display custom notifications, announcements, and alerts on your website without any struggle

Big Boom Alert Bar vs Site Notify