W3dt.net Alternatives

IntoDNS checks the health and configuration and provides DNS report and mail servers report.

All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.

SolveDNS works to check your name servers, a records, and mail servers, SOA records for errors, consistency, efficiency and speed using several DNS tests.

DNS is a free online service to check your domain’s servers for common DNS and mail errors and produces a report with explanations how to fix them.

DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering.

Audit your domain name DNS settings easily and quickly.

With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.

paid Free Trial $164.45 / Annually (Starter)

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

RapidSpike is a reliability, performance and security monitoring service for transactional websites. Using next-generation synthetic monitoring & deeper than ever before data, RapidSpike is for businesses serious about protecting their online revenue

paid Free Trial £25.0 / Monthly

Pingbreak is an original and free monitoring service.

Provides a comprehensive test and report on the health of your DNS.

Site24x7 offers both free & paid website monitoring services. Monitor websites remotely and receive instant email/sms alerts if your website becomes unavailable. View uptime & performance graphs of your website monitors.

paid $10.0 / Monthly (Starter - 10 Websites)

Nameserver Checker Tools

free