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What You’ll Learn

  • Checking SSL certificate status for HTTPS child sites
  • Viewing detailed certificate information
  • Scheduling automated SSL checks
  • Overwriting general settings for individual sites
Extension Add-on - This add-on provides standalone functionality within MainWP Dashboard. No third-party plugins required.
The SSL Monitor extension allows you to check information about SSL certificates for your HTTPS child sites. The table on the Dashboard page of the SSL Monitor extension gives you insight into the most important information, such as the expiration date, who the issuer is, and the common name.
Screenshot of SSL Monitor dashboard showing certificate expiration dates, issuers, and common names
The extension also provides all the detailed information about the SSL certificates that you may need.

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Browse Certificate Status

On MainWP > Add-ons > Monitoring > SSL Monitor > Dashboard, search by site name or URL, sort supported column headings, and use the page and page-size controls to browse your sites. Results load as you change the table controls; wait for the loading indicator to finish before selecting rows or starting a check. The SSL Monitor widget on the main Overview page also supports search, sorting, and paging. Click SSL Monitor Dashboard in its footer to open the full table. An individual site’s Overview widget shows its saved certificate details and links to that site’s SSL Monitor page. N/A or Not checked indicates that certificate data is unavailable or has not been collected. Run Check SSL Certificate for the site and review any reported error before relying on its expiration information. The table and widgets show saved results; browsing them does not perform a new certificate check.

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Install the SSL Monitor extension

1

Go to your MainWP Dashboard

2

Go to the MainWP > Add-ons > Manage Add-ons page

3

Click the Install Add-ons button

Click the Install Add-ons button Screenshot highlighting the Install Add-ons button on the Add-ons page
4

Locate the SSL Monitor extension and select it

5

Click the Install button

6

Once the installation process is complete, click the Activate Add-ons button.

Once the installation process is complete, click the Activate Add-ons button. Screenshot showing the Activate Add-ons button after SSL Monitor installation

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Check SSL Certificates

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For all Sites

1

Go to the MainWP > Add-ons > Monitoring > SSL Monitor > Dashboard page.

2

Click the Check SSL Certificate on All Sites button in the top right

Screenshot showing Check SSL Certificate on All Sites button

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For individual Sites

1

Go to the MainWP > Add-ons > Monitoring > SSL Monitor > Dashboard page.

2

Locate the desired site in the table.

3

Click the Check SSL Certificate action in the ellipsis menu.

Animated screenshot showing Check SSL Certificate action in ellipsis menu

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View Detailed Certificate Information

1

Go to the MainWP > Add-ons > Monitoring > SSL Monitor > Dashboard page.

2

Locate the desired site in the table

3

Click the SSL Certificate Info action in the ellipsis menu.

Animated screenshot showing SSL Certificate Info action and detailed certificate view

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Adjust the SSL Monitor Settings

Screenshot of SSL Monitor settings page with notification threshold and automated check options
1

Go to the MainWP > Add-ons > Monitoring > SSL Monitor > Settings page.

Go to the MainWP > Add-ons > Monitoring > SSL Monitor > Settings page.
  1. Notifications threshold (days): you will be notified by email if an SSL Certificate for any monitored site reaches the threshold you define here.
  2. Automated Checks: you can enable automatic SSL certificate checks and set the frequency for those checks
2

After you've adjusted the settings, click the Save Settings button

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Automatic Inclusion of New Sites

SSL Monitor 5.3 automatically adds a monitoring record when you connect a new HTTPS site to MainWP Dashboard. It does not perform a certificate lookup during site connection. With Automated Checks enabled, the scheduler performs the first check and subsequent checks at the configured frequency. Automatic checks apply only to sites whose saved URL starts with https://. HTTP sites are excluded. Existing individual overrides remain in effect, including sites where automated checks are disabled.

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Adjust the SSL Monitor settings on a Single Site

Animated screenshot showing how to overwrite general SSL Monitor settings for a single site
1

Login to your MainWP Dashboard

2

Go to the MainWP > Sites > Manage Sites page

3

Locate the Child site, open its Dashboard, and go to SSL Monitor > Settings page

Locate the Child site, open its Dashboard, and go to SSL Monitor > Settings page
  1. Overwrite the general settings by enabling the Overwrite general settings toggle
  2. Adjust the Notifications threshold (days) and whether you want to automatically check SSL certificates for this specific site
4

Click the Save Settings button

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Check Sites via WP CLI

If you prefer running SSL checks from the command line, or want to trigger them from a script or cron job outside of the MainWP Dashboard’s built-in scheduler, use the WP-CLI commands the extension registers under wp mainwp-ssl-monitor. Both commands accept either a comma-separated list of child site IDs or the --all flag to target every child site. Check the SSL certificate for one or more sites:
Check all sites:
View saved SSL certificate information for one or more sites without triggering a new check:

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SSL Monitor REST API

All MainWP REST API calls, including full documentation and examples, are publicly available on Postman. For more details about enabling the MainWP REST API and managing keys, see REST API Overview.