Free Bulk SSL Checker — Validate Certificates for Up to 10 Domains Instantly
Paste in your domains and get instant, accurate results on SSL/TLS validity, expiry, issuer, chain of trust, and domain match — built for site owners, agencies, and hosting providers managing more than one certificate.
Up to 10 domains per check, one per line.
Advanced options
Why Your SSL Certificate Matters
Installing SSL is never a one-step job — from choosing DV, OV, or EV, to generating a CSR, to correctly installing the full chain. One missed step can cost you more than you’d expect.
Browser Trust
A broken or expired certificate throws up “Your connection is not private” warnings — and most visitors leave the moment they see it.
SEO Rankings
HTTPS is a confirmed Google ranking signal. A misconfigured certificate can quietly hurt visibility even when the site loads fine for you.
Data Security
SSL/TLS encrypts data between your server and every visitor. A weak or invalid setup can leave logins, forms, and payments exposed.
What This Checker Verifies
Submit one or several domains and get an instant report covering everything that determines whether a certificate is actually trustworthy.
Validity & Expiry
Is the certificate currently valid, and exactly how many days are left before it expires?
Common Name & SAN Match
Does the certificate actually cover the domain you’re checking — including subdomains and wildcards?
Issuer & Trust Chain
Who signed the certificate, are they a trusted Certificate Authority, and is the chain correctly installed?
Protocol & Cipher Strength
Which TLS version and cipher suite the server negotiates — details most free checkers skip entirely.
Self-Signed Detection
Flags certificates that aren’t issued by a public CA, so you know exactly why browsers won’t trust them.
True Bulk Checking
Check up to 10 domains in a single request instead of running the same tool over and over.
How It Works
No downloads, no account, no waiting — results appear in the same window, seconds after you click.
Paste Your Domains
One domain per line, with or without https:// — we handle the rest. Up to 10 at a time.
Click Check SSL
We connect to each domain directly and read its live certificate — no cached or stale data.
Get Instant Results
A clear pass/warning/fail card for every domain, right on this page — nothing to download.
Built For
Frequently Asked Questions
What does an SSL checker actually check?
An SSL checker verifies that a website’s SSL/TLS certificate is valid and correctly installed. It checks the expiry date, the Common Name and SAN entries (to confirm the certificate covers your domain), the issuing Certificate Authority, the certificate chain of trust, and the negotiated TLS protocol and cipher strength.
Is this bulk SSL checker really free?
Yes. It’s completely free, with no sign-up, no account, and no limit on how many times you can use it. You can check up to 10 domains in a single request.
How many domains can I check at once?
Up to 10 domains in a single bulk check. Just paste one domain per line into the box and click Check SSL.
What happens if my SSL certificate expires?
Once a certificate expires, browsers show visitors a “Your connection is not private” warning, which drives most users away instantly. It can also affect SEO rankings, since HTTPS is a confirmed Google ranking signal, and can break API or webhook integrations that depend on a trusted connection.
Does this tool work with subdomains and wildcard certificates?
Yes. The checker reads the certificate’s Subject Alternative Name (SAN) entries, including wildcard entries like *.example.com, and confirms whether the domain you entered is actually covered.
Can I check a self-signed certificate?
Yes. The tool will still connect and read the certificate details, but it will flag it as self-signed since browsers don’t trust self-signed certificates by default.
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Check Your Certificates Right Now
No sign-up, no limits — paste your domains above and get results in seconds.