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SSL Certificate Monitoring — 24/7

Stop Losing Clients to "Connection Not Private" Errors.

UptimeObserver monitors your SSL certificates 24/7. Get alerted 14, 7, and 1 day before expiry—and instantly if your chain breaks or configuration changes.

MJ
SG
SP
+1k
Monitoring 10,000+ SSL certificates daily
app.uptimeobserver.com/ssl
SSL Certificates
4 Active
example.com
Let's Encrypt 87d
shop.example.com
Sectigo 6d ⚠
api.example.com
DigiCert Chain ✕
blog.example.com
Let's Encrypt 52d
UptimeObserver just now

⚠️ shop.example.com SSL expires in 6 days. Renew now to avoid downtime.

Monitoring thousands of SSL certificates daily.

Let's Encrypt Sectigo DigiCert GlobalSign GoDaddy

The Hidden Cost

A forgotten SSL certificate costs more than just a renewal fee.

Lost Trust.

Visitors immediately bounce when browsers display glaring red security warnings. Months of hard-won credibility vanish in seconds.

Tanked SEO.

Search engines actively penalize sites without valid, up-to-date HTTPS encryption. One expired cert can undo months of ranking progress.

Revenue Drop.

E-commerce carts are abandoned the second the secure connection breaks. Customers do not return to sites that once felt unsafe.

Included in Every Plan

More than just SSL monitoring.

When you secure your certificates with UptimeObserver, you unlock an entire suite of enterprise-grade infrastructure monitoring.

Feature You Came For
Free Bonuses Included
SSL Monitoring (Expirations & Chains)
Website Uptime Monitoring (HTTP/s)
Instant SSL Alerts (Slack, Telegram, etc.)
Port Monitoring (80, 443, 22, etc.)
Multi-Domain SSL Management
DNS Record & ICMP (Ping) Monitoring

Quick Setup

Setup in under 2 minutes.

No agents to install. No code to modify. Zero technical skills required.

01

Add your domain.

Just type in your URL. No agents to install or code to modify. We handle the rest automatically.

02

We scan every 30 minutes.

Our global network continuously verifies your certificate health, expiry date, and full chain validity around the clock.

03

Get alerted instantly.

Relax knowing you will be pinged on your favorite app the moment an issue arises or a deadline approaches.

Integrations

Alerts Where Your Team Already Works

Keep your team in the loop by sending real-time downtime and performance alerts directly to your dedicated channels.

Slack

Send alerts directly to any Slack channel or DM.

Discord

Send notifications to any Discord server channel.

Telegram

Receive instant alerts in your Telegram chat or group.

Pushover

Push alerts directly to your mobile device.

Webhooks

POST event payloads to any endpoint in your own systems.

Email

Get email alerts straight to your inbox on any schedule.

MCP (Model Context Protocol)

Connect AI assistants to your monitoring data via the Model Context Protocol.

What users say about UptimeObserver

“Reliable Website Monitoring with Instant Telegram Alerts.”

Florin B.

AI Engineer, Freelancer

“Easy Setup, Helpful UptimeObserver Team, and Generous Plans.”

Icaro F.

Software Engineer, Small Business

“Simple to Use with Excellent & Fast Support.”

Verified User

Managing Director, Small Business

See all reviews on G2

Plans and pricing

Start with 20 monitors free.

Free

Monitor allowance

20

Free

20 monitors with checks every 5 minutes.

Get Started

No credit card required.

Pro

Monitor allowance

200

290€ /year

Billed once per year.

200 monitors with checks every 30 seconds.

Start Free Trial

14-day trial. Credit card required; you’ll be charged when the trial ends unless you cancel beforehand.

Yearly prices are billed once per year, not monthly. EUR and USD are separate price lists, not automatic currency conversions.

These paid offers apply to first-time paid subscriptions, including upgrades from Free. Your current paid subscription keeps its existing price and monitor allowance.

Plan comparison

On smaller screens, scroll the table horizontally to compare plans.

Features included in each plan
FeatureFreeIndiePro
Monitor allowance2050 / 100200 / 400
Availability-check interval5 minutes1 minute30 seconds
Email alert recipients 1 3 10
Status pages 1 5 10
Status pages with custom domains Not included Included Included
HTTPS monitoring Included Included Included
DNS monitoring Included Included Included
Port monitoring Included Included Included
SSL monitoring Not included Included Included
Domain name expiry monitoring Not included Included Included
Email alerts Included Included Included
Telegram alerts Included Included Included
Pushover alerts Included Included Included
Slack alerts Not included Included Included
Discord alerts Not included Included Included
Webhook alerts 2 20 50
Email and chat support Included Included Included

View pricing

FAQ

Frequently Asked Questions

UptimeObserver checks your SSL certificates every 30 minutes from multiple geographic locations. This frequent monitoring ensures we detect certificate changes, renewals, or issues within minutes of occurrence.

We collect non-sensitive certificate metadata including: domain names, expiration dates, issuing certificate authority, certificate chain information, encryption strength, and protocol versions. We never collect private keys or sensitive certificate data.

Yes, UptimeObserver performs checks from multiple locations to ensure accurate monitoring and alerting.

No. SSL certificate monitoring uses minimal resources and doesn't impact your website's performance. We perform standard SSL handshakes identical to regular browser connections, generating negligible load.

Start monitoring your websites

Start with 20 monitors free.