Website monitoring done the right way

Find peace of mind knowing that your websites are up and running.

But when things go haywire, be the first to learn about it.

Try Hexadecimal for free

To this day, Hexadecimal has run more than 3,500,000 uptime and certificate checks!

Uptime monitoring

Stop losing money, trust, and sanity by monitoring your production websites and APIs every minute. Be the first to know when something goes south.

Certificate expiry checks

When calendar reminders and hacky shell scripts won't cut it anymore. No more expired SSL/TLS certificates.

Peace of mind

You shouldn't be up at night because your monitoring software is throwing false alerts left and right.

Resolve downtimes faster

Instead of receiving generic “your website is down” message, you will have a reason for what might be causing the downtime and how to troubleshoot it.

Versatile alerting

Multiple recipients? Check. Notifications delivered via email, SMS, and Slack? Check. Configurable delay for the first notification? Check. Recurring notifications? Check. False positives? No.

Team accounts

Bring over your team members by emailing them a link. You know that sharing credentials over pastebin is a Bad Thing, right? Right?

Hands-on support

Instead of receiving canned, robotic responses to your questions, get helpful, timely responses from the founder. Your emails won't end up in /dev/null.

Wide range of protocols

Living on the bleeding edge? From TLS 1.3 to HTTP/2 to IPv6, you have got yourself covered. Using legacy software? You are covered as well.

Quick tour

Get up and running in seconds. Literally.

Start your free 16-day trial

No hidden fees, no tracking, no ads, no dark patterns, no shenanigans, no snake oil.