Cost / License
- Free
- Open Source (AGPL-3.0)
Platforms
- Online




Domain Digger vs MxToolBox Comments


- Domain Digger is Free and Open Source
The best free alternative to MxToolBox is Domain Digger, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to MxToolBox and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to MxToolBox are techkit.net, HetrixTools, Upzilla and Echo.







HetrixTools offers minute-by-minute global uptime monitoring with 15 free monitors, blacklist alerts for IPs and domains, and server resource tracking. Features a user-friendly design, public uptime pages, white label reports, and continuous updates for enhanced functionality.



![(dark mode) Server Resource Monitoring [1]](https://d4.alternativeto.net/q8CuJSIoU-vXNj4JDQHleymjf6yKV8D7PhhvNTv5WNc/rs:fill:309:197:1/g:no:0:0/YWJzOi8vZGlzdC9zL2hldHJpeHRvb2xzXzY3Mjg2MF9mdWxsLnBuZw.png)
Others only have 1 free monitor. Hetrix has 32 free monitors.


Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.








Free, and willing to show you the details without a subscription (rip free days of MXTB)


NsLookup shows all the DNS records for the website you're visiting. It has support for popular DNS servers like Google DNS, CloudFlare DNS and OpenDNS, but also local DNS servers all over the world.





SPFtoolbox is an open-source Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more


Supercharge your email campaigns with EmailCheck! Effortlessly verify email lists in bulk, export CSV reports & analytics. Ensure accurate, reliable outreach, saving time and boosting deliverability. Upgrade your email game and drive results with confidence.




Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.

It has a more modern and cleaner UI