Free Online Utility

The free SSL Certificate Batch Checker

Paste a list of up to 20 domains and this tool runs a real TLS handshake against each one and reports its real certificate expiry date.

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Free to use
No signup
Nothing to install
Works in any modern browser

Free to use

No signup

SSL Certificate Batch Checker

Example

A list of 8 client domains returns a table where 6 show a real, valid certificate with 60+ days remaining, one shows only 4 days remaining (flagged in red as urgent), and one fails the handshake entirely (flagged as an active problem) — an at-a-glance view no single-domain checker run eight separate times would show as clearly.

Open the SSL Certificate Batch Checker

Illustration. Open the tool for the real thing.

Explained

What is the SSL Certificate Batch Checker?

This site's existing SSL Certificate Checker is built for one domain at a time. If you're responsible for a dozen sites, subdomains or client domains, checking each one individually is slow — this tool takes a full list, up to 20 domains at once, and runs the same real TLS handshake check against every one of them, then shows every result together in a single sortable table.

Each row shows that domain's real, live certificate expiry date, days remaining, issuer and trust status, exactly as a real browser would evaluate it — so you can spot at a glance which domains are fine, which are expiring soon, and which have already failed, across an entire portfolio of sites in one pass instead of one check at a time.

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Real check per domainUp to 20 domains in oneSortable by

3 steps to your result

Open the tool and follow along. Nothing to install.

Paste your list of domains, one per line (up to 20).

Each domain is checked with a real, live TLS handshake, one at a time to stay within normal usage limits.

Review the sortable results table — expiry date, days remaining, issuer and trust status for every domain.

What you get

Real check per domain, not cached guesses

Every domain gets its own genuine, live TLS handshake check, the same real verification as the single-domain checker.

Up to 20 domains in one pass

Paste a whole list and get every result back together instead of checking one at a time.

Sortable by days-until-expiry

Instantly spot which domains are expiring soonest across your whole list.

Same real trust verification as the single checker

Reports genuine certificate trust status, not just whether a handshake technically completed.

Free to use

AZRS tools are free to open and use.

Nothing to install

It opens in your browser, so there is nothing to download.

Used for

Pick one to see how it fits.

Use case

Agencies and freelancers managing several client websites

Check every client domain's certificate status in one pass instead of one at a time.

Try it free

How it compares

A plain look at this tool next to the usual alternative.

	This utility	Desktop software
Install	Nothing to install	Usually an app or program to install
Account	No signup	Depends on the product
Cost	Free to use	Free or paid, depends on the product

Questions people ask

How is this different from the existing single SSL Certificate Checker?

That tool checks one domain per run, in depth. This tool is built specifically for checking many domains at once — paste up to 20 and get every domain's real, live certificate status back together in one sortable table, useful for anyone managing a portfolio of sites rather than a single one.

Is each domain's check real, or cached/simulated?

Real — every domain in the list gets its own genuine, live TLS handshake performed at the time you run the check, exactly like the single-domain checker does for one site.

What's the domain limit and why?

Up to 20 domains per run, to keep each batch check completing in a reasonable time and within normal fair-use request limits.

What does 'trust status' mean here?

Whether a real browser-style certificate chain validation against that domain would succeed — a certificate can technically exist and still fail trust validation (for example, if it's expired, self-signed, or doesn't match the domain).

Can I sort or export the results?

Results can be sorted by days-until-expiry to immediately surface the most urgent domains first.