### Identify noindex X-Robots-Tag HTTP header

Source: https://yoast.com/help/crawl-error-submitted-url-marked-noindex

Check your HTTP headers for a `noindex` directive. This example shows the format of such a header.

```http
X-Robots-Tag: noindex
```

--------------------------------

### Composer Configuration for Yoast Repositories

Source: https://yoast.com/help/common-installation-update-errors

Configure your composer.json to prioritize specific Yoast package repositories using the 'only' attribute. This ensures correct package resolution.

```json
 "repositories":{
    "my-yoast": {
      "type": "composer",
      "url": "https://my.yoast.com/packages/",
      "only": [
        "yoast/wordpress-seo-premium",
        "yoast/wordpress-seo-local",
        "yoast/wpseo-video",
        "yoast/wpseo-woocommerce",
        "yoast/yoast-news-seo"
      ]
    }
  },
```

--------------------------------

### Pinterest Rich Pins Metadata

Source: https://yoast.com/help/configuration-guide-for-yoast-woocommerce-seo

This metadata is outputted by the WooCommerce SEO plugin for use with Pinterest Rich Pins, including price, currency, and availability.

```html
<meta property="product:price:amount" content=""/> 
<meta property="product:price:currency" content="USD"/> 
<meta property="product:availability" content="instock"/>
```

--------------------------------

### Find the noindex meta tag

Source: https://yoast.com/help/crawl-error-submitted-url-marked-noindex

Search for this meta tag in the page's source code to identify if a `noindex` directive is present.

```html
<meta name="robots" content="noindex">
```

--------------------------------

### Increase WordPress Memory Limit in wp-config.php

Source: https://yoast.com/help/common-installation-update-errors

Add this line to your wp-config.php file to increase the memory allocated to WordPress. This can help resolve 'Fatal error: Allowed memory exhausted' issues.

```php
define('WP_MEMORY_LIMIT', '256M');
```

--------------------------------

### Increase PHP Memory Limit in .htaccess

Source: https://yoast.com/help/common-installation-update-errors

Add this line to your .htaccess file to increase the memory limit for PHP. This method is useful if you do not have direct access to the php.ini file.

```apache
php_value memory_limit 256M
```

--------------------------------

### Add fb:app_id Meta Tag via functions.php

Source: https://yoast.com/help/fb-app-id-warnings

Use this PHP code snippet in your theme's functions.php file or a custom plugin to add the fb:app_id meta tag. This is recommended if you are uncomfortable with the 'missing fb:app_id' warning in Facebook's Sharing Debugger.

```php
function my_custom_function_name() {
  $app_id = 966242223397117;
  $tag = '<meta property="fb:app_id" content="%d" />';
  echo sprintf($tag, $num);
}
add_action( 'wp_head', 'my_custom_function_name' );
```

--------------------------------

### Increase PHP Memory Limit in php.ini

Source: https://yoast.com/help/common-installation-update-errors

Modify the 'memory_limit' directive in your server's php.ini file to increase the available memory for PHP scripts. This is an alternative to modifying wp-config.php.

```ini
memory_limit = 256M;
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.