Too much web traffic can dramatically slow down or prevent all access to a website. This is caused by more file requests going to the server than it can handle and may be an intentional attack on the site or simply caused by over-popularity. Large-scale websites with numerous servers can often cope with the traffic required, and it is more likely that smaller services are affected by traffic overload. Sudden traffic load may also hang your server or may result in a shutdown of your services.
Web analytics is the measurement of the behavior of visitors to a website. In a commercial context, it especially refers to the measurement of which aspects of the website work towards the business objectives of Internet marketing initiatives; for example, which landing pages encourage people to make a purchase. Notable vendors of web analytics software and services include Google Analytics, IBM Digital Analytics (formerly Coremetrics) and Adobe Omniture.