Source

File: wp-admin/includes/class-wp-comments-list-table.php

public function column_author( $comment ) {
		global $comment_status;

		$author_url = get_comment_author_url( $comment );

		$author_url_display = untrailingslashit( preg_replace( '|^http(s)?://(www\.)?|i', '', $author_url ) );
		if ( strlen( $author_url_display ) > 50 ) {
			$author_url_display = wp_html_excerpt( $author_url_display, 49, '…' );
		}

		echo '<strong>';
		comment_author( $comment );
		echo '</strong><br />';
		if ( ! empty( $author_url_display ) ) {
			printf( '<a href="%s">%s</a><br />', esc_url( $author_url ), esc_html( $author_url_display ) );
		}

		if ( $this->user_can ) {
			if ( ! empty( $comment->comment_author_email ) ) {
				/** This filter is documented in wp-includes/comment-template.php */
				$email = apply_filters( 'comment_email', $comment->comment_author_email, $comment );

				if ( ! empty( $email ) && '@' !== $email ) {
					printf( '<a href="%1$s">%2$s</a><br />', esc_url( 'mailto:' . $email ), esc_html( $email ) );
				}
			}

			$author_ip = get_comment_author_IP( $comment );
			if ( $author_ip ) {
				$author_ip_url = add_query_arg(
					array(
						's'    => $author_ip,
						'mode' => 'detail',
					),
					admin_url( 'edit-comments.php' )
				);
				if ( 'spam' === $comment_status ) {
					$author_ip_url = add_query_arg( 'comment_status', 'spam', $author_ip_url );
				}
				printf( '<a href="%1$s">%2$s</a>', esc_url( $author_ip_url ), esc_html( $author_ip ) );
			}
		}
	}