About this plugin
Cobalt Checkout Diagnostics for WooCommerce helps you investigate cart and checkout configuration problems with local, read-only checks. Review findings and compare configuration with the previous run when troubleshooting a store change.
Open WooCommerce → Checkout Diagnostics to check your store. Results provide evidence and links to help you investigate. Shop managers with the manage_woocommerce capability can run diagnostics.
Checks do not place orders or process payments. Local checks do not prove that a real external customer can complete payment. This plugin must never be described as a live checkout or payment monitor.
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Video overview
What this version does
- Support-matrix guard for PHP 8.2+, WordPress 6.9+, and WooCommerce 10.8+
- Manual diagnostic run from WooCommerce → Checkout Diagnostics
- Read-only checks for versions, HTTPS, permalinks, cart/checkout pages, block vs classic type, catalog, enabled payment gateway ids, shipping, HPOS vs posts storage, WP-Cron, and Action Scheduler
- Safe loopback cart probe and checkout-render probe (GET to this site’s assigned URLs only)
- Store API checkout-total consistency checks for block checkout
- Configuration snapshots and a changes check against the previous run
- Run history on this site, grouped results, evidence, and allowlisted remediation links
- Optional scheduled runs (Action Scheduler when ready, otherwise WP-Cron)
- Optional operator incident email to the site admin address (off by default)
What this version does not do
- Charge a gateway, create orders, change stock, send customer mail, or trigger fulfilment
- Expose a public REST API
- Accept arbitrary probe URLs
- Claim that a real customer can complete payment
Requirements
- PHP 8.2+ (8.3 or 8.4 recommended)
- WordPress 6.9+ (tested up to 7.1)
- WooCommerce 10.8+ (tested up to 11.1)
- Block Cart/Checkout, classic shortcodes, mixed setups, and HPOS or posts storage are all in scope
Limitations
- Local checks do not prove that a real external customer can complete payment.
- Probes are loopback HTTP GETs to this site’s cart and checkout permalinks. They do not POST checkout, call process_payment, or hit Store API write endpoints.
- Probe timeouts are capped (default 10 seconds, maximum 15). TLS verification is never disabled.
- Scheduled WP-Cron runs are approximate. Action Scheduler jobs are not unscheduled during uninstall if Action Scheduler has not initialized yet; leftover actions then fire a no-op hook.
- Incident email is not sent on every run. Fail and warning are both incidents. Recipients cannot be typed in the UI.
- This plugin has no REST API.