Website Availability Monitoring

Availability means a visitor can enter the site URL and see the content as expected. It refers to the uptime of a site, which is closely tied to the uptime of the web server and the other servers it depends on, such as the database server, application server or file server. For a site to be considered available, most of the servers that provide its functionality must be working.

Availability and reliability are about keeping those servers online. If a server your site depends on becomes unavailable, a sound redundancy plan keeps the site reachable. As an organization moves into an ecommerce world, load balancing and failover techniques protect the servers that stay operational.

Using availability monitoring

• Understand response time through DNS time, connection time, first byte time and last byte time.
• Receive quick notification of content errors, connectivity issues and other glitches.
• Verify a page for specific error messages.
• Monitor performance online using HTTP and HTTPS requests.
• Track availability from different locations and over both IPv4 and IPv6.
• Reduce false alerts with dependency set up and secondary locations.

Supported data formats

• JSON
• XML
• POST HTTP method

The service connects to your site each minute from monitoring regions across continents and checks for uptime. Detailed reporting covers DNS record errors, network problems, SSL and TLS protocol details such as key exchange, bulk encryption and hash function, plus traceroute output from monitoring locations.