DNSInspect is a web tool which checks domain name servers for common DNS and mail errors and generates a report with explanations how to fix them.
Cost / License
- Free
- Proprietary
Platforms
- Online
W3dt.net is described as 'Offers DNS & Network Troubleshooting tools which are dedicated to providing relevant real-time data regarding networks, websites and other technical resources, free of charge for more than a decade!' and is a website monitoring tool in the network & admin category. There are more than 10 alternatives to W3dt.net, not only websites but also apps for a variety of platforms, including SaaS, Windows, Linux and Chrome OS apps. The best W3dt.net alternative is Pingdom. It's not free, so if you're looking for a free alternative, you could try MxToolBox or Upzilla. Other great sites and apps similar to W3dt.net are intoDNS, SPFToolbox, RapidSpike and Pingbreak.
DNSInspect is a web tool which checks domain name servers for common DNS and mail errors and generates a report with explanations how to fix them.
Silent Down is a website uptime and performance monitoring platform, to keep an eye on your application and instantly alert you if any issues arrive.




Unlimited monitors checked from multiple location every minute. Monitor any port or setup a "heartbeat" that works well for cron jobs or any service behind a firewall. Be alerted as soon as your service is offline via email or app integration.

Powerful domain name and ip address tools for DNS Lookup (nslookup), Supports Reverse DNS, FCrDNS, DKIM, and IPv6.




Statusdroid operates a worldwide network of servers which checks your website every 30 seconds from over 15 worldwide locations.
Standard uptime monitoring with alerts that include diagnostic information, timing breakdowns and dashboard snapshots. Configure alerts for HTTP statuses, reachability and performance thresholds.



Web monitoring service, which checks website every 5 minutes. It detects when it's offline, redirected, broken or even hacked. Provides SMS and email notifications, statistics and logs.



This utility is a GUI alternative to the NSLookup tool that comes with Windows operating system. It allows you to easily retrieve the DNS records (MX, NS, A, SOA) of the specified domains.

DNS Check is an application which compares the DNS records that you enter to what nameservers are returning in response to queries. If there's an issue, DNS Check will notify you, and enable you to quickly identify what it is. Issues which can be detected include:
