"m6web/seo-behat-extension": "dev-master",
"behat/mink-goutte-driver": "1.0.*@dev"

./vendor/bin/behat.yml

default:
extensions:
    Behat\MinkExtension\Extension:
        base_url: http://www.yoursite.com
        goutte: ~
    M6Web\Behat\SEOExtension\Extension:
        robots_file: %behat.paths.base%/data/robots.txt
        rules_file: %behat.paths.base%/data/rules.csv

<?php

use Behat\Behat\Context\BehatContext;
use Behat\CommonContexts\MinkExtraContext;
use Behat\MinkExtension\Context\MinkContext;
use M6Web\Behat\SEOExtension\Context\PageContext;
use M6Web\Behat\SEOExtension\Context\RobotContext;


/**
* Features context.
*/
class FeatureContext extends BehatContext
{
    /**
     * Initializes context.
     * Every scenario gets its own context object.
     *
     * @param array $parameters context parameters (set them up through behat.yml)
    */
    public function __construct(array $parameters)
    {
        $this->useContext('mink',  new MinkContext());
        $this->useContext('mink-extra',  new MinkExtraContext());
        $this->useContext('seo-checker-robot', new RobotContext());
        $this->useContext('seo-checker-page', new PageContext());
    }
}

./vendor/bin/phpspec