# wordpress-seo/18.0/src/config/indexing-reasons.php

Yoast SEO – Advanced SEO with real-time guidance and built-in AI, version 18.0. 35 lines.

- Page: https://pluginprobe.com/plugins/wordpress-seo/18.0/code/src/config/indexing-reasons.php
- Raw: https://pluginprobe.com/plugins/wordpress-seo/18.0/raw/src/config/indexing-reasons.php
- Modified: 2020-11-03T11:56:12+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
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```php
<?php

namespace Yoast\WP\SEO\Config;

/**
 * Class Indexing_Reasons. Contains constants that aren't context specific.
 */
class Indexing_Reasons {

	/**
	 * Represents the reason that the indexing process failed and should be tried again.
	 */
	const REASON_INDEXING_FAILED = 'indexing_failed';

	/**
	 * Represents the reason that the permalink settings are changed.
	 */
	const REASON_PERMALINK_SETTINGS = 'permalink_settings_changed';

	/**
	 * Represents the reason that the category base is changed.
	 */
	const REASON_CATEGORY_BASE_PREFIX = 'category_base_changed';

	/**
	 * Represents the reason that the tag base is changed.
	 */
	const REASON_TAG_BASE_PREFIX = 'tag_base_changed';

	/**
	 * Represents the reason that the home url option is changed.
	 */
	const REASON_HOME_URL_OPTION = 'home_url_option_changed';
}

```