Free Instant HTTPS and SSL Checker

Is your website properly secured by a valid SSL certificate? Use our free tool to find out.

Just enter the URL to check your site's SSL-certificate

An HTTPS certificate adds a layer of protection to your website. Without it, your visitors will get a security warning that your site is not secure.

Please provide a valid and secure URL


Test performed at: [timestamp]

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Experience connection errors?

Do a quick test from multiple locations worldwide with our free reachability checker.

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Mixed content can undermine your websites security

Let us crawl your website for mixed content and recieve a free report.

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Keep monitoring your SSL certificates

Get alerted automatically

Our monitoring tool Semonto checks the validity of your SSL certificate 24/7 and alerts you when there is a problem. This gives you the opportunity to renew your HTTPS certificate well in advance and avoid embarrassing security warnings.

Find out more →

More monitoring options

Semonto alerts you when something is wrong with your website, app or server so you can fix the issue before anyone notices. HTTPS monitoring is just one of the options. Discover the features that help you stay in control.

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