SEM stands for Search Engine Marketing, which involves promoting websites by increasing their visibility in search engine results through paid advertising.

Bounce rate refers to the percentage of visitors who leave a website after viewing only one page, indicating a lack of engagement.

Time on Page is a common metric used to measure the effectiveness of content marketing, indicating how long visitors engage with the content.

The primary purpose of Google Analytics is to track website traffic and provide insights into user behavior on a website.

Click-Through Rate (CTR) is a key metric used to measure the success of an email marketing campaign, indicating the percentage of recipients who clicked on a link in the email.

Total Revenue is used to measure the return on investment (ROI) of a digital marketing campaign, as it reflects the income generated from the campaign.

Engagement Rate is a key performance indicator (KPI) for social media marketing, measuring the level of interaction users have with content.

Higher ad spend is NOT a benefit of using analytics in digital marketing; rather, analytics helps optimize ad spend for better results.

Optimizely is a popular tool used for A/B testing in digital marketing, allowing marketers to test different versions of web pages or emails.