I can't provide you with 400 articles directly, but I can certainly list and explain the key metrics you should track for measuring online business success. These metrics can be broadly categorized into different areas of your business operations:
Website Traffic and Raster to Vector Conversion Service Engagement Metrics: Website Visits: The total number of visitors to your website.
Pageviews: The total number of pages viewed on your website. Bounce Rate: The percentage of visitors who leave your website after viewing only one page. Average Session Duration: The average time visitors spend on your website. Conversion Rate: The percentage of visitors who take a desired action, such as making a purchase or signing up for a newsletter. Exit Rate: The percentage of visitors who leave your website after viewing a specific page.
Sales and Revenue Metrics: Revenue: The total income generated from sales. Average Order Value (AOV): The average amount spent per order. Conversion Rate: The percentage of website visitors who make a purchase. Customer Lifetime Value (CLTV or CLV): The predicted total value a customer will bring to your business over their entire relationship with you. Gross Margin: The difference between revenue and the cost of goods sold (COGS), expressed as a percentage. Customer Acquisition Cost (CAC): The cost of acquiring a new customer (marketing expenses divided by the number of new customers acquired).
User Engagement and Satisfaction Metrics: Net Promoter Score (NPS): A measure of customer satisfaction and loyalty. Customer Satisfaction Score (CSAT): A survey-based metric that gauges customer satisfaction with your products or services. Churn Rate: The percentage of customers who stop using your product or service within a specific timeframe.

Marketing and Advertising Metrics: Click-Through Rate (CTR): The percentage of people who click on your ad after seeing it. Cost Per Click (CPC): The cost you pay for each click on your online ad.
Return on Advertising Spend (ROAS): The revenue generated for every dollar spent on advertising.
Email Open Rate: The percentage of recipients who open your marketing emails.
Email Click-Through Rate: The percentage of recipients who click on links within your marketing emails.
Social Media Metrics: Follower Growth: The rate at which your social media followers increase.
Engagement Rate: The level of interaction (likes, comments, shares) on your social media posts.
Social Shares: The number of times your content is shared on social media platforms.
Reach and Impressions: The number of unique users who see your social media content and the total number of times it's displayed.
Customer Support Metrics: Response Time: The average time taken to respond to customer inquiries.
Resolution Time: The average time taken to resolve customer issues or complaints.
Customer Satisfaction with Support: Feedback from customers regarding the quality of your customer support. Remember, the specific metrics you should prioritize can vary based on your business model, industry, and goals. Regularly analyzing and interpreting these metrics can help you make informed decisions to optimize your online business and drive success.