}

    /**
     * Validates a sitemap URL entry.
     * @param sitemapUrl the sitemap URL to validate
     * @return true if valid, false otherwise
     */
    protected boolean validateSitemapUrl(final SitemapUrl sitemapUrl) {
        if (!enableValidation) {
            return true;
        }
        if (sitemapUrl == null) {
            return false;
        }
        // Validate required fields