DNS Monitoring

Checks for performance and correctness of DNS query resolutions from worldwide locations.

Domain Name Server (DNS) monitoring helps provide consistent connectivity to your websites and servers to save time diagnosing DNS issues. As a result, DNS Monitoring helps to avoid losing online revenues, decrease downtime and maintain happy customers.

What is DNS Monitoring?

Verification of Domain Name Resolution

Ensuring Web and Mail Servers are Available

Checking Proxy Server Availability

Sending Alerts When Issues are Present

Helping Diagnose Intermittent DNS Issues

dns monitoring

Why is DNS Monitoring Important?

Domain name servers (DNS) are used to translate domain names to IP addresses. If the DNS server that supports your organization is down, multiple service such as Mail Servers, web sites, proxy servers may be unavailable to the outside world.

Slow DNS resolution can translate to sluggish website performance. We can test DNS resolution by direct querying specified servers or propagating Internet Root servers to resolve a specific internet address from multiple points around the world.

If any issues are detected with resolving names:

dns-trace-results

An instant DNS trace is taken that shows the full path of propagation.

instant-alert

An instant alert is also sent, showing the type of issue and extent of the error.

dns-performance-reports

Performance reports are generated showing global resolution speeds.

Record Types Supported by Dotcom-Monitor:

  • A: IPv4 address record that maps a hostname to an IPv4 address.
  • AAAA: IPv6 address record that maps a hostname to an IPv6 address.
  • NS: Name server record that delegates the authoritative name servers.
  • CNAME: Canonical name record that is an alias to another name record.
  • SOA: Start of authority record returns the most authoritative information regarding the domain, mail and record timing information.
  • TXT: Text Record can be used for general information as well as Sender Policy Information or other machine readable information.
  • MX: Mail exchange record defines the message transfer agents for the domain.
  • PTR: Pointer record points to a canonical record for reverse dns lookup.
  • SPF: Sender Policy Framework is a legacy record that is now generally handled in the TXT record.
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