Uptime Monitoring
Know about downtime before your customers do
Every minute of downtime costs you visitors, revenue, and trust. Our uptime monitoring checks your website every few minutes and alerts you as soon as we detect a problem – not when customers start complaining or you notice a traffic drop.
- Continuous Monitoring
- Flexible Check Intervals
- HTTPS Monitoring
- SSL Certificate Monitoring
Your site was down for 2 hours. You found out from a customer complaint
Without proactive monitoring, you only discover outages when users complain – or when you check your analytics and see a mysterious traffic drop.
You don't know your site is down until customers tell you
Partial outages (like slow API responses) go unnoticed
SSL certificates expire and browsers show scary warnings
You have no historical uptime data for SLA reporting
Intermittent issues are hard to catch without continuous monitoring
On-call engineers get woken up for problems that resolved themselves
Current status and response tracking
Monitor uptime, response times, SSL certificates, and domain expiration. Get alerted when issues arise.
Continuous Monitoring
We check your site continuously at the interval set by your plan. Detect outages quickly and track response times over time.
Flexible Check Intervals
Your check frequency depends on your plan. The Advanced plan supports 1-minute intervals; other plans support 5-minute intervals.
HTTPS Monitoring
Every registered domain is monitored automatically over HTTPS. We record the response code and response time on each check and flag failures as incidents.
SSL Certificate Monitoring
Get alerted before your SSL certificates expire, with a configurable warning threshold set to 14 days by default. Never let an expired certificate surprise you with browser warnings.
Response Time Tracking
Track server response times (TTFB) over time, broken down by DNS, connection, TLS handshake, and server wait. The slowest checks are surfaced automatically – slow is almost as bad as down.
Downtime Alerts
Receive an email or in-app alert within 60 seconds of detection. Never miss a critical outage.
Recovery Alerts
Get notified the moment your site recovers, so you know exactly when an incident ended, not just when it started.
Uptime Reports
View historical uptime percentages and incident history. Great for SLA reporting, post-mortems, and understanding reliability trends.
A check as often as every 60 seconds, around the clock
VitalSentinel pings your site over HTTPS as often as every minute and validates the response. The moment it goes down or an SSL certificate is about to expire, you get an alert, not a surprise from an angry customer.
- Checks as often as every 60 seconds
- SSL and domain expiry flagged weeks ahead
- Instant alerts by email and in-app
From outage to recovery, alerted every step
When a check fails, you get a downtime alert within 60 seconds – then a recovery alert the moment your site is back. SSL expiry warnings land in the same feed weeks ahead of time.
- Downtime alerts within 60 seconds of a failed check
- Recovery alerts confirm exactly when an incident ended
- SSL expiry flagged early, 14-day threshold by default
Uptime, response time, and SSL on one board
Track historical uptime, response time trends, days until SSL expiry, and open incidents in one place – the numbers you need for SLA reporting and post-mortems.
- Historical uptime percentages for SLA reporting
- Response time (TTFB) tracked over time
- SSL and domain expiry counted down in days
24/7 monitoring, fast alerts
Add your domain
Add the domain you want to monitor. Uptime checks start automatically – there are no endpoints, headers, or response codes to configure.
Check frequency by plan
Your plan sets how often we check your domain (1 or 5 minutes). Higher tiers check more often for faster detection.
Continuous monitoring begins
We start checking your domain immediately. Results are recorded for historical analysis and trending.
Get alerted when checks fail
You're notified by email and in-app. See exactly what failed and when.
Real scenarios, real fixes
"During Black Friday, your site went down for 30 minutes. You only found out from angry tweets."
Uptime checks would have alerted you within minutes. Your team could have started investigating immediately.
"Your SSL certificate expired over the weekend. Customers saw browser warnings and left."
SSL monitoring alerts you before expiration, with a configurable threshold set to 14 days by default. You'll never be surprised by an expired certificate again.
"A client's site went down overnight. They found out before you did – damaging the relationship."
Monitor all client sites from one dashboard. Get alerted immediately so you can respond before clients even notice.
Every module included. You only choose your coverage
All plans include all eight modules. Start free, upgrade only when you need wider coverage.
Free
Perfect for trying out VitalSentinel
- 1 domain
- 25K RUM page views/mo
- 100K analytics events/mo
- 6 months data retention
Lite
For consultants and growing businesses
- 5 domains
- 250K RUM page views/mo
- 5M analytics events/mo
- 16 months data retention
Never miss another outage
Start monitoring your site's availability in minutes. Get alerts before your customers notice problems.