StatusCake
UptimeRobot
Pingdom
Uptime Kuma
Better Uptime
Better Stack
Uptime.com
Site24x7
InboxStack
GlockApps
Email Testing By Inbox Pirates
Validity LLC
MxToolBox
Folderly
HetrixTools
Inbox AI
InboxStack is an email deliverability intelligence platform built for teams who need to know why their emails aren't reaching the inbox โ not just that they aren't. At its core is Brain, a proprietary causal AI engine trained on a 22-year deliverability knowledge base, which correlates signals across your ESP, DNS authentication records (SPF, DKIM, DMARC), Google Postmaster Tools, Microsoft SNDS, and 50+ blocklists to pinpoint root causes instead of surfacing raw metrics.
Most deliverability tools stop at monitoring: they show you a drop in inbox placement or a blocklist hit and leave you to investigate. InboxStack goes further, tracing the actual causal chain โ a DKIM misalignment, a reputation dip on a specific sending IP, a content trigger โ so you can fix the real problem instead of guessing.
Setup takes minutes with no migration required: forward your email headers for an instant DNS/authentication audit, or connect your existing ESP and Postmaster accounts for ongoing monitoring. Optional seed testing gives you real inbox-vs-spam placement data across major providers.
Built for agencies managing multiple client domains and growing companies who've outgrown basic authentication checkers, InboxStack turns deliverability from a black box into a diagnosable, fixable system.
StatusCake InboxStackBusinesses of all sizes that need to ensure their websites are operational and performing well, IT professionals who require detailed monitoring and alerts, and anyone looking for a cost-effective and reliable monitoring solution with customizable features.
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Based on our record, StatusCake seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Statuscake.com if you just need a simple up/down monitor. Source: about 4 years ago
I've had a great time with statuscake.com for my personal and friends sites. They've even improved custom status pages to include an automatically signed certificate too, so you can make a site like status.yourdomain.com... Test TCP connection, specific HTTP/HTTPS query etc. 5 minute intervals for free, more with paid plans. Source: over 4 years ago
I use statuscake.com for external stuff and nagios for internal. PRTG is good too. Source: over 4 years ago
I use statuscake.com for all my personal / friend sites. There seems to be no limit to number of sites to monitor for basic 5 minute intervals in the free account. Source: almost 5 years ago
I use noip.com for a free domain name and a free plan on statuscake.com for this setup. Source: about 5 years ago
UptimeRobot - Free Website Uptime Monitoring
GlockApps - G-Lock Apps is an interesting tool that might seem simple to some, but is quite essential to most online marketers.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Email Testing By Inbox Pirates - Preview, Analyze & Test emails with one click.
Uptime Kuma - A fancy self-hosted monitoring tool.
Validity LLC - Founded in 2010, located in Essex Countyโs City of Orange, NJ, and serving all 50 states of the U.S., Validity, LLC is considered a โOne Stop Shopโ for ...