Fill in the blank:Short strings of specific keywords with low search volume are called___________.

Long-tail keywords are specific, often multi-word phrases that have lower search volume but typically higher conversion rates. They are called "long-tail" because they reside in the "tail" of the search demand curve, representing a large number of unique searches that individually have low volume but collectively can drive significant traffic. For example, "best vegan gluten-free chocolate chip cookie recipe" is a long-tail keyword, compared to the broad "cookies." Long-hair keywords are not a recognized term in SEO. High-relevance keywords are important but don't specifically refer to the characteristic of low search volume and high specificity; a broad keyword can also be highly relevant.