User-Agent: Yandex
Disallow: /add.php
Disallow: /re.php
Host: www.dostroi.biz

User-Agent: Aport
Disallow: /do/
Disallow: /add.php
Disallow: /re.php

User-Agent: *
Disallow: /add.php
Disallow: /re.php
Crawl-delay: 20