Single tool that monitors all aspects of websites, including availability, domain, certificate, security and script errors.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Online


Single tool that monitors all aspects of websites, including availability, domain, certificate, security and script errors.


Branded public status page with multi-region uptime checks, third-party provider monitoring, auto advisories, on-call rotations, and API for automation.




NoCrash watches your n8n workflows, AI agents, vibecoded apps, URLs, and Stripe, and sends one plain-English morning brief before a silent failure reaches your clients. Free plan with 3 watches, no card.



Real-time uptime monitoring for Shopify stores. Get instant alerts when Stripe, Klaviyo, ShipStation, or any of your 80+ e-commerce services goes down.



Continuously monitors your internet connection by contacting multiple public servers, writes a log with the exact time and length of any failures.



onitor any type of infrastructure from 12+ locations worldwide. See why things are slow. Alert your team. Show status page to customers in 20+ languages.




UptimeBoss is a hosted uptime monitoring platform with remote agents, heartbeats, incidents, maintenance windows, and public status pages.




Sematext Experience is a real user monitoring solution that offers 100% visibility into your website or web app that affects your users’ experience.




Monitoring the availability of websites or servers and controlling performance and response time. Receiving alerts when a test result is negative. Discovery offer for monitoring a website for free.




updown.io is a HTTP monitoring solution with a clean UI and a cheap and simple pricing. It notifies you of downtimes by email or SMS and provides a public status page you can share.


Monitor your website, REST API, SSL, Domain, Server, Port. Free 5 monitors. Checked every 5 minutes.
Get alerted if your website is down via email, teams, webhook etc.


All-in-one uptime monitoring platform- HTTP, SSL, domains, cron jobs, DNS, and status pages in one tool. 10+ global probe regions with multi-region consensus alerting to eliminate false positives.




Check your domain’s health in seconds. Domain Comfort scans SSL, DNS, and email setup for issues. It's built for calm, fast, and reliable monitoring.




Monytra is a website uptime monitoring tool built for freelancers and web agencies. Monitor your clients' websites, get instant downtime alerts, and manage everything from a clean, simple dashboard with more included on the free plan than most alternatives.




Global website monitoring: 5 monitors included, 60-second checks, 70+ locations. Uptime, latency, SSL, DNS & more with instant alerts.



Simple website uptime and cron job monitoring. We check operational status of your website and notify you when your server is not responding or your nightly backups, weekly reports and scheduled tasks don't run on time.

IsZDown monitors the downtime of thousands of applications, websites, and services across the world including SAAS services, internet, phone, electricity, apps, and websites that go down and apps that aren’t working.


Downhound provides outage information for over 14,000 websites, apps, games & internet providers.

SiteVitals is a SaaS platform that monitors website health, uptime, SEO, security, and performance - alerting you when something needs attention.




Free continuous website security scanner and uptime monitor. Scan any site in 2 seconds, we checks TLS/SSL, security headers, DNS, exposed files, misconfigs and cookies.

Avoid traffic and sales loss, be alerted when your website is down! Monitor all of your web services (site, server, database, ...) 24/7 with our multiple check locations in Europe/USA. Available in 5 languages!.




Check if a website is down or just for you. Get real-time website status, outage reports, and global server response times. Stay updated with the latest downtime alerts and user reports.

UPSONAR.IO is an uptime monitoring service with a unique approach: we don't just ping your server - we parse your HTML and verify every external dependency.




Enterprise infrastructure monitoring for email reputation, SSL certificates, and the services you can't afford to lose.




Take control of your monitoring with Spectate. Our efficient platform offers efficient monitoring and incident management tools, so you can stay ahead of potential issues and keep your projects running smoothly.



