For this week’s SEO case study, we’re examining a test where we positively impacted organic traffic by introducing more internal links to the home page footer. The #SPQuiz this week asked twitter followers what they thought the positive impact from this test was: Of the three options, the majority of our votes predicted that the impact was between five and ten percent. This week, the majority was right! However, keep reading and you’ll find that the impact was not distributed equally among devices.