How to diagnose high CPU usage caused by WordPress

WordPressrequiresatleastPHP7.4,thoughusing8.0orhigherisrecommendedforbetterperformanceandsecurity.Olderversionslike5.6areoutdated,unsupported,andposesecurityrisks.UsingupdatedPHPimprovessecurity,enhancesperformance,andensurescompatibilitywithmodernpl

robots.txt is crucial to the SEO of WordPress websites, and can guide search engines to crawl behavior, avoid duplicate content and improve efficiency. 1. Block system paths such as /wp-admin/ and /wp-includes/, but avoid accidentally blocking the /uploads/ directory; 2. Add Sitemap paths such as Sitemap: https://yourdomain.com/sitemap.xml to help search engines quickly discover site maps; 3. Limit /page/ and URLs with parameters to reduce crawler waste, but be careful not to block important archive pages; 4. Avoid common mistakes such as accidentally blocking the entire site, cache plug-in affecting updates, and ignoring the matching of mobile terminals and subdomains.

InspectorControls is a component used in Gutenberg development to add custom controls in the right sidebar. 1. It belongs to the @wordpress/block-editor package. 2. It is often used with PanelBody, TextControl and other components. 3. When using it, you need to introduce and reasonably lay out control types such as text boxes, pull-down selections, switches, sliders and color selectors in edit.js. 4. Pay attention to grouping settings, keep them simple, support internationalization and optimize performance.

It is not complicated to add security response headers in WordPress, and can be implemented through server configuration, security plug-ins, or CDN. 1. Add header information such as X-Content-Type-Options, X-Frame-Options, etc. through Apache or Nginx configuration files; 2. Use plug-ins such as Wordfence and iThemesSecurity to simplify settings; 3. Use the built-in functions of CDN platforms such as Cloudflare to configure global header information. After configuration, you should use SecurityHeaders.com or ChromeDevTools to test and verify to ensure correctness and get at least A-level scores, while paying attention to backup and understanding the enabled

To protect the security of WordPress sites, we need to focus on protecting wp-config.php files. 1. Restrict external access to wp-config.php through server configuration (such as Apache's .htaccess or Nginx configuration); 2. Set reasonable file and directory permissions, and it is recommended to set wp-config.php permission to 600; 3. Move wp-config.php to the non-public directory at the upper root of the website to improve security; 4. Ignore the file in the version control system to avoid leakage of sensitive information; 5. Regularly update the security key in wp-config.php to prevent the risk of session hijacking. These measures can effectively improve WordPress security

Optimizing WordPress database can effectively improve website speed and stability. Key steps include: 1. Clean up useless data, such as spam comments, revisions and drafts. You can limit the number of revisions by modifying configurations or plug-ins and delete invalid content in batches; 2. Optimize database tables, use plug-ins or SQL commands to repair and compress fragmented tables to improve query efficiency; 3. Delete residual data of plug-ins and topics that are no longer used to avoid taking up space and causing conflicts, and manually clean up legacy configurations if necessary; 4. The database must be fully backed up before operation, and data can be exported with the help of plug-ins or control panels to ensure security. Perform the above regularly to keep the website running efficiently.

The way to present a specific tag article depends on the platform or framework. ① WordPress can use WP_Query or get_posts() functions to retrieve the specified tag content; ② Static site generators such as Hugo can configure templates to automatically list related articles; ③ Self-development requires front-end filtering data or back-end interface parameters to filter; ④ When implementing, pay attention to case, multi-label logical relationship, paging and exception handling.

The key to using ACF is to understand its workflow and application scenarios. The specific steps are as follows: 1. Create a custom field group, enter the "CustomFields" menu in the background, add a field group and set display rules; 2. Call field data in the template, display the field content through the PHP function the_field or get_field; 3. Use the option page to achieve global settings, add an option page through the code and call global fields; 4. Pay attention to the field naming specification, field group order, export field group and local development synchronization and other tips. After mastering these steps, ACF can significantly improve WordPress development efficiency.