DCV Checker

Check your domain's Domain Control Validation (DCV) readiness before requesting an SSL certificate — CAA records and HTTP-01 challenge path reachability, in seconds.

100% Free CAA Record Check HTTP-01 Readiness

Check DCV Readiness

Secure by designYour domain is processed instantly over an encrypted connection and never stored on our servers.

Encrypted in transitSubmitted over HTTPS/TLS — nothing is sent in plain text.

Never storedThe domain you check and its results are not saved to any database or log.

No third-party sharingYour data is never shared with ads, trackers, or outside services.

Processed instantlyChecked on request and discarded immediately after the response.

About DCV Checker

What Is a DCV Checker?

Domain Control Validation (DCV) is how a Certificate Authority confirms you actually control a domain before issuing an SSL certificate for it — typically via a DNS TXT record, an HTML file upload, or an email confirmation. This tool checks whether your DCV setup is correctly in place.

How to Use the DCV Checker

Enter your domain and the DCV method you're using
Click Check
Review whether validation is correctly detected

Key Features

Supports multiple DCV methods — DNS, file, and email-based validation
Quick pass/fail confirmation before you retry certificate issuance

Who Uses This Tool

System administrators troubleshooting a failed SSL certificate issuance due to validation problems.

Frequently Asked Questions

Why does my DCV keep failing?
Common causes include a TXT record not yet propagated, a validation file placed in the wrong path, or using an email address not on the CA's approved list for that domain.

Is this tool free?
Yes, checking DCV status is completely free.

Frequently Asked Questions

What is DCV (Domain Control Validation)?

DCV is the process a Certificate Authority uses to confirm you control a domain before issuing an SSL certificate. Common methods include placing a file at a specific HTTP path (HTTP-01), adding a DNS TXT record (DNS-01), or clicking a link sent to an approved email address.

What is a CAA record?

A CAA (Certification Authority Authorization) DNS record restricts which Certificate Authorities are allowed to issue certificates for your domain. If your CAA record doesn't list your chosen CA, that CA's issuance request will fail even if all other validation succeeds.

Do I need a CAA record?

No — CAA records are optional. Without one, any publicly trusted CA can issue a certificate for your domain. Adding a CAA record is a security best practice that limits which CAs can issue for you, reducing the risk of mis-issuance.

Why did my certificate request fail even though DNS looks fine?

A common cause is a CAA record that doesn't authorize your chosen CA. Another common cause is the HTTP-01 challenge path being unreachable — for example, blocked by a firewall, WAF, or a server that only listens on HTTPS.

Is this tool free to use?

Yes, completely free with no signup, no limits and no software to install.

Does this tool actually request a certificate for me?

No — this tool only checks readiness (CAA rules and HTTP path reachability). You'll still request the actual certificate through your chosen Certificate Authority or ACME client (like Certbot or your hosting provider's SSL tool).

What's the difference between HTTP-01 and DNS-01 validation?

HTTP-01 requires placing a specific file at a URL path on your web server. DNS-01 requires adding a specific TXT record to your domain's DNS zone. DNS-01 is required for wildcard certificates; HTTP-01 is simpler for single-domain certificates on a running web server.

Is my domain data saved anywhere?

No — the check runs on request against public DNS and your webserver, and the domain you enter is not stored or linked to you.