Is this SSL checker free to use?

Yes, it’s 100% free and requires no sign-up or installation.

Can it check wildcard and multi-domain certificates?

Absolutely, it supports both wildcard and SAN certificates with ease.

Does the check website ssl certificate tool support international domain names (IDNs)?

Yes, our SSL cert checker supports IDNs across multiple languages.

How often should I check my SSL certificate?

Ideally, at least once a month or before making site changes.

Can this tool detect mixed content on my website?

Yes, it flags any insecure HTTP elements that break full HTTPS security.

Will it work for localhost or staging servers?

No, it only scans live, publicly accessible domains.

Heatfeed SSL Checker – Instantly
Test Your SSL Certificate

Get instant results on your SSL certificate's status, expiry, and configuration — no login required.

Understand How an SSL Cert Checker Keeps Your Site Secure

Before diving into the tool, it's important to know what an online SSL checker actually does and why it matters for your website's credibility.

What Does an SSL Certificate Checker Do?

An SSL qualys checker instantly analyzes your website’s SSL certificate to confirm that it's properly installed, valid, and trusted by major browsers. It looks into the certificate's validity period, issuer, encryption strength, and whether it's connected properly to intermediate certificates. By scanning in real-time, it saves site owners from potential trust issues and Google warnings.

Why SSL Certificates Matter for Online Safety

SSL certificates are no longer optional. Without one, your visitors see "Not Secure" warnings in browsers, and their personal data can be intercepted. Beyond that, search engines give a ranking boost to secure websites, making SSL a foundational piece of SEO strategy. An SSL cert checker ensures your certificate is always active and properly configured.

Who Needs an Online SSL Checker?

Every site owner, from bloggers to e-commerce giants, needs a csr checker to ensure secure communication. Developers rely on it before pushing a site live. Marketers use it to maintain trust signals. And tech teams use tools like the qualys SSL checker for enterprise-grade diagnostics. But for quick, user-friendly checks, our tool gives fast, detailed insights.

Easy Steps to Use the SSL Checker Tool

It only takes a few seconds to check the security of your website with our tool.

Enter Your Domain, HTTPS or Not
Whether your site uses https:// or just the domain name, enter it into the box. Our csr checker works both ways, automatically detecting what it needs to start the process.
Hit the Button to Begin the Scan
After entering your domain, hit “Check SSL.” Behind the scenes, our ssl cert checker connects to your website, retrieves your certificate details, and evaluates your security settings.
Review SSL Details in Seconds
You'll get an instant report showing certificate status, expiration date, and technical configuration. You’ll also know whether your domain is vulnerable or misconfigured. It’s perfect if you’ve ever needed to check my SSL certificate for issues.

Explore the Features of Our Free SSL Certificate Checker

You don’t need to install anything or create an account to unlock powerful SSL diagnostics.

Always-Up-to-Date SSL Status
Our SSL qualys checker gives you real-time info every time you use it. No cached data. You always get an accurate status report on your certificate.
See Expiration Dates and Issuer Info Clearly
The tool shows when your certificate will expire and who issued it. This is key for anyone needing to check site certificate details before a renewal window closes.
Pinpoint SSL Misconfigurations Fast
A misconfigured certificate can silently break your site’s trustworthiness. Our tool highlights potential problems from wrong SAN entries to missing intermediate certs before they cause user-facing errors.
Compatible with All Domains and Subdomains
From root domains to nested subdomains, our check website SSL certificate tool works across them all. Whether you’re running a blog, SaaS platform, or client site, we’ve got you covered.
100% Online, No Installs Needed
Our tool is completely browser-based. No signups, no apps — just a clean, web-based check website ssl certificate experience that works instantly.

Why Use an SSL Checker on a Regular Basis?

Using an SSL free checker isn’t just for new websites — it’s a maintenance essential for every live domain.

Avoid Broken Padlocks and Warning Signs
One of the worst user experiences is a browser showing a red warning or broken lock symbol. Regularly using a check site certificate tool ensures your certificate is active and valid every single day.
Ensure Every Installation Is Done Right
Even small mistakes in SSL installation can lead to big visibility issues. Our tool double-checks the setup so you can feel confident about your SSL implementation.
Spot Expired or Self-Signed Certs Instantly
An expired or self-signed certificate can tank user trust. With our check website SSL certificate tool, you’ll catch these issues before your visitors do.
Boost Your SEO and User Trust in One Go
Having a secure site improves Google rankings and makes visitors feel safer. If you're serious about SEO, using a check my SSL certificate tool regularly is a must for performance and protection.

What Does Our Online SSL Checker Show You?

The SSL report you get is loaded with technical details but explained in simple terms for anyone to understand.

Get Validity Dates at a Glance
You’ll instantly see the start and end date of your certificate. No more surprises. Our SSL ai checker gives exact dates so you’re never left guessing.
See the CA and Issuer Behind Your SSL
It’s important to know who issued your certificate, not just for trust but also for renewals. Our ssl certificate checker displays this info prominently in your scan results.
Understand the Full SSL Chain
Missing intermediate certificates cause trust issues. We’ll show your entire SSL chain so you can see if anything’s missing.
Check Support for TLS Versions
Security protocols evolve. Our ssl cert checker detects if your site supports secure versions like TLS 1.2 and TLS 1.3, flagging older ones that might be risky.
View Cipher Suites and Key Sizes
We also tell you which ciphers and encryption key lengths your server supports. The stronger the setup, the safer your data. With our csr checker, you get clarity on cryptographic configurations.

Common SSL Problems Our Tool Flags Right Away

Many websites don’t realize they have SSL problems until users complain. Our qualys SSL checker gives you a heads-up.

Detects Expired Certificates Instantly
You might not remember the last time you renewed, but our ssl certificate checker does. It’ll show you if your cert has expired, even by a day.
Finds Missing Intermediate Certs
If a browser doesn’t trust your certificate, it could be missing a chain file. Our check site certificate tool makes that easy to identify and fix.
Self-Signed? We'll Let You Know
Self-signed certificates are flagged clearly — ideal if you're testing or didn’t realize your cert wasn’t verified.
Catch Mixed Content Issues
Even if your cert is valid, HTTP elements can still trigger browser warnings. Our tool helps you spot these mixed content issues fast.
Highlights Weak Encryption and Deprecated Protocols
Using old ciphers or TLS 1.0? Our qualys SSL checker alternative alerts you to deprecated security settings that put user data at risk.

Why Continuous SSL Monitoring Is Crucial

Staying secure isn’t a one-time job. SSL needs regular checks to protect your brand and users.

Keep Browsers from Flagging You
Browsers like Chrome and Firefox penalize sites with SSL errors. Regularly checking your cert with our ssl checker helps avoid these costly mistakes.
Build Lasting Trust with Visitors
A secure site equals trust. Whether you’re handling personal info or selling online, our ssl certificate checker supports that trust with consistent monitoring.
Align with SEO and Legal Standards
SSL certificates aren’t just best practice — they’re often required by GDPR and Google. Using a check my SSL certificate tool helps you stay compliant and search-friendly.

Frequently Asked Questions (FAQs)

Is this SSL checker free to use?: Yes, it’s 100% free and requires no sign-up or installation.
Can it check wildcard and multi-domain certificates?: Absolutely, it supports both wildcard and SAN certificates with ease.
Does the check website ssl certificate tool support international domain names (IDNs)?: Yes, our SSL cert checker supports IDNs across multiple languages.
How often should I check my SSL certificate?: Ideally, at least once a month or before making site changes.
Can this tool detect mixed content on my website?: Yes, it flags any insecure HTTP elements that break full HTTPS security.
Will it work for localhost or staging servers?: No, it only scans live, publicly accessible domains.

Heatfeed SSL Checker – Instantly Test Your SSL Certificate