How to fix ssl cert invalid on Ecwid (by Lightspeed)
Install a valid SSL/TLS certificate that exactly matches your store's domain name, so browsers trust your site and customer data is encrypted in transit.
Steps for Ecwid (by Lightspeed)
- If your Ecwid store is embedded in a website (WordPress, Wix, etc.), SSL is the responsibility of the host website — fix the certificate there using the relevant platform steps above.
- If you use an Ecwid Instant Site (your-store.ecwid.com or a custom domain via Ecwid), go to Ecwid Control Panel → Website → Instant Site Settings → Custom Domain.
- Ecwid provisions SSL automatically for custom domains connected through this panel. Confirm your domain's DNS CNAME points to the value Ecwid specifies, then click 'Connect domain'. SSL is issued automatically.
What is ssl cert invalid?
Every website served over HTTPS needs an SSL/TLS certificate issued by a trusted Certificate Authority (CA). That certificate must list the exact domain name (or a wildcard that covers it) your visitors use to reach your store. A "hostname mismatch" error means the certificate installed on your server was issued for a *different* domain — for example, it covers `www.example.com` but your store is accessed at `example.com`, or the certificate belongs to a completely different domain altogether. Browsers check this match every time someone loads your site; if it fails, they show a full-screen warning and refuse to complete the connection.
A certificate hostname mismatch is one of the most damaging trust failures an online store can have. Browsers (Chrome, Firefox, Safari, Edge) display a red "Your connection is not private" warning that blocks visitors before they ever see your store — most users immediately leave and never return, costing you sales directly. Google treats HTTPS as a ranking signal and may demote or de-index pages that cannot be loaded securely, reducing your organic traffic. From a legal and compliance perspective, payment card industry (PCI-DSS) rules require that cardholder data be encrypted with a valid certificate; a mismatch means you are technically non-compliant and could face fines or lose the ability to accept cards. Under OWASP's A02:2021 Cryptographic Failures, an invalid certificate is classified as a critical security vulnerability because it leaves all data exchanged between your customers and your store potentially exposed to interception.
See the complete Ssl cert invalid guide for every platform and the full background.
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