Verify SSL certificate validity, expiry date, issuer, and security level for any e-commerce store in seconds.
We connect to your server via TLS and retrieve the SSL/TLS certificate chain. We then decode the certificate to extract the issuer, subject, validity period, signature algorithm, and supported TLS versions โ all without storing any sensitive data.
SSL is non-negotiable for e-commerce. Chrome marks all HTTP pages as 'Not Secure', which can reduce trust and conversions by up to 70%. Google also uses HTTPS as a ranking signal. An expired certificate will completely block users from accessing your store.
Certificate validity (not expired/not yet valid), issuer authority (trusted CA or self-signed), remaining days until expiry, signature algorithm strength, TLS protocol version support (1.2/1.3), certificate chain completeness, and wildcard vs standard coverage.
Set calendar reminders 30 days before expiry. Use Let's Encrypt for free auto-renewing certificates. Enable TLS 1.3 for best performance and security. Avoid self-signed certificates for production โ they trigger browser warnings that kill conversions.
Best for
Merchants and agencies that want a fast answer before a redesign, SEO sprint, campaign push, or product-page refresh.
What you get
A focused result, a visible issue list, and the next checks worth running so you can move from diagnosis to action.
Why it matters
Focused tools are useful because they catch one class of store problems early, before they quietly hurt ranking, trust, or conversion efficiency.
We connect to your server via TLS and retrieve the SSL/TLS certificate chain. We then decode the certificate to extract the issuer, subject, validity period, signature algorithm, and supported TLS versions โ all without storing any sensitive data.
SSL is non-negotiable for e-commerce. Chrome marks all HTTP pages as 'Not Secure', which can reduce trust and conversions by up to 70%. Google also uses HTTPS as a ranking signal. An expired certificate will completely block users from accessing your store.
Certificate validity (not expired/not yet valid), issuer authority (trusted CA or self-signed), remaining days until expiry, signature algorithm strength, TLS protocol version support (1.2/1.3), certificate chain completeness, and wildcard vs standard coverage.
Set calendar reminders 30 days before expiry. Use Let's Encrypt for free auto-renewing certificates. Enable TLS 1.3 for best performance and security. Avoid self-signed certificates for production โ they trigger browser warnings that kill conversions.
Merchants usually use SSL Certificate Checker before a launch, redesign, SEO sprint, conversion optimization cycle, or competitor review. It is useful when you need a focused answer fast without running a full audit first.
This is also a good pre-check before sending more paid traffic to a page. If the result exposes weak fundamentals, it is often cheaper to fix them before spending harder on acquisition.
A lot of stores lose performance because teams check only the homepage, optimize the wrong template, or fix cosmetic issues before structural ones. Focus first on the pages that matter for discovery, trust, and conversion.
These are the closest follow-up checks for the issue you are reviewing now.
Common questions about this tool and how it helps your SEO and credibility.
A complete audit of your store's trust, SEO, speed, conversion, and security โ with prioritized fixes ranked by revenue impact.
The tools above are just the start. Our full audit analyzes 8 dimensions, gives you a prioritized fix list with revenue estimates, and a certification badge.
