
UptimeRobot
Pingdom
DNSChecker.org
HetrixTools
Whats My DNS
EasyDMARC
Uptime Kuma
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.

Whats My DNS
WhatIsMyIP.com
CertChime
Certly.dev
Cert Monitor
Certmon.net
CertsMonitor
Monitor SSL certificates, domain expiry, DNS health, and security headers with real-time alerts.

Which is more popular?
Based on our record, MxToolBox seems to be more popular. It has been mentioned 200 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | mxtoolbox.com | certnotify.com |
| Pricing | — | |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
MxToolBox is highly recommended for IT professionals, network administrators, email server administrators, and anyone responsible for maintaining the health and security of network systems. It is also beneficial for businesses of all sizes that rely on email communication and need to ensure their servers and domains are functioning correctly and not blacklisted.
No analysis of CertNotify yet.
Walkthroughs and reviews on video.
Episode 201 - Tools, Tips and Tricks - MXToolbox.com
No CertNotify videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using MxToolBox and CertNotify. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Made the switch to self-hosted https://mailu.io (on k8s) 2 years ago when Gandi announced the deprecation of their free plan. Happy after IP was off most blocklists, but setup was kinda rough - https://mxtoolbox.com is your friend. - Source: Hacker News / over 1 year ago
I used these tools in the past: https://mxtoolbox.com/ https://www.mail-tester.com/. - Source: Hacker News / over 2 years ago
Suprised to not see https://mxtoolbox.com in this list too. - Source: Hacker News / over 2 years ago
Tracking CertNotify since Sep 2026.
When comparing MxToolBox and CertNotify, you can also consider the following products.


Instantly check your domain names current IP address and DNS record information against multiple name servers located in different parts of the world.
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With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
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WhatIsMyIP.com® makes it easy to find your public IP address and understand its role in your online experience. From network troubleshooting to privacy protection, we provide reliable tools and expert tips to help you stay informed and in control.
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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.
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SSL/TLS certificate monitoring with no sign-up required.
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