Free SSL Checker –
Verify SSL certificate in Seconds
SSL certificate verification, expiry date, and chain completeness. Built from India.
What your SSL checker results mean – and what to do about them
Your result shows a status for each field. Here’s what each one actually means for your site, and whether you need to act.
Means: browsers show the padlock, visitors connect securely, nothing is wrong. Do: nothing – just don’t let it lapse near expiry.
Means: still working today, but the renewal window is open. Some older Indian mobile browsers warn a few days early. Do: confirm auto-renewal is on, or renew manually now.
Means: the certificate is fine but a middle link is missing – it may look secure on your desktop yet warn on Android and payment apps. Do: reinstall including the full CA bundle.
Means: the certificate is for a different hostname – often www vs non-www — so one version secures and the other warns. Do: reissue to cover both, and redirect to one.
For a full cryptographic audit – cipher suites, protocol enumeration, and vulnerability testing (POODLE, ROBOT, and similar) – SSL Labs goes deeper →
Still stuck after the steps above?
We can help fix your SSL problem – no obligation, just reach out.
Get in touch →SSL certificate isn’t working – Why and how to fix it
These three problems account for over 90% of SSL issues reported by Indian website owners. Find your situation and follow the plain-English fix.
NET::ERR_CERT_DATE_INVALIDWhy it happens: Let’s Encrypt certificates last 90 days. If your host does not auto-renew them, they expire silently. Some older shared hosting plans do not auto-renew.
How urgent is this? Extremely. Every minute your cert is expired, potential customers are leaving your site permanently.
2. Find SSL/TLS → Install or Renew Let’s Encrypt
3. Select your domain and click Install. Done in 2 minutes.
NET::ERR_CERT_AUTHORITY_INVALIDNET::ERR_CERT_COMMON_NAME_INVALIDWhy it happens: SSL certificates do not transfer between hosting providers. Your new host must issue a fresh certificate after your DNS points to them.
Common mistake: Waiting for the old certificate to transfer. It never will. You must install a new one from your new host’s control panel.
2. Go to new host control panel → SSL → Install Free SSL
3. Wait 5 minutes. Check again with our SSL checker above.
Not Secureno ERR_CERT code – this is mixed contentWhy it happens: Mixed content – some images, scripts, or CSS files on your page still load over HTTP instead of HTTPS. Even one insecure resource triggers the browser warning.
This is NOT an SSL problem – your certificate is fine. It is a content problem that is easy to fix.
Common SSL error codes and what they mean
If your browser shows one of these, here’s the underlying cause. Run the checker above to confirm which applies to your site.
NET::ERR_CERT_DATE_INVALID
The certificate has expired – or your device’s clock is wrong. Check the expiry date in your result first; if it’s still valid, fix the device clock.
NET::ERR_CERT_COMMON_NAME_INVALID
The certificate doesn’t cover the address being visited – usually www vs non-www, or a subdomain missing from the SAN list.
NET::ERR_CERT_AUTHORITY_INVALID
Browsers don’t trust the issuer. Caused by a self-signed certificate, or more often a missing intermediate certificate in the chain.
SEC_ERROR_UNKNOWN_ISSUER
Firefox’s version of the same problem – an incomplete chain. Reinstall including the full CA bundle.
ERR_SSL_PROTOCOL_ERROR
The secure handshake failed entirely – often a server configuration or outdated protocol issue rather than the certificate itself.
NET::ERR_CERT_REVOKED
The certificate authority revoked this certificate. It cannot be repaired – you need to reissue a new one.
How to verify your SSL certificate
Verifying an SSL certificate means confirming four things: the certificate is trusted by browsers, it hasn’t expired, it matches your domain name, and the full certificate chain is installed. Here’s how to do it.
-
1
Enter your domain in the checker above The tool retrieves the live certificate directly from your server – no cached results.
-
2
Read the verdict “Valid & trusted” means browsers accept your certificate and visitors see the padlock. Anything else tells you exactly which part failed.
-
3
Check the details Confirm the expiry date leaves enough runway, the chain shows complete, and the SAN list covers every domain and subdomain you serve (including www).
-
4
Fix and re-check If something’s flagged, follow the fix steps in your result, then run the check again – the before/after comparison confirms your fix worked.
You can also verify manually in Chrome by clicking the padlock icon → “Connection is secure” → “Certificate is valid” – but that only shows validity and expiry. It won’t catch a missing intermediate certificate or SAN gaps, which is why an external verification catches problems your own browser hides.
How long is an SSL certificate valid in 2026?
As of 15 March 2026, the maximum validity of any publicly trusted SSL/TLS certificate is 200 days – down from 398. It drops again to 100 days in 2027 and 47 days in 2029. If you still renew once a year, that habit no longer covers a full term.
-
Before
398 days The long-standing maximum – roughly one annual renewal.
-
2026
200 days – in effect now From 15 March 2026. Most certificate authorities actually issue 199 days. Annual renewal no longer covers a full year.
-
2027
100 days From 15 March 2027. Roughly quarterly renewal – manual processes start to break down.
-
2029
47 days From 15 March 2029. Domain validation must also be repeated every 10 days. Automation becomes mandatory in practice.
What this means for you: if your host auto-renews (as Let’s Encrypt does every 90 days), nothing changes – automation already handles it. If you renew manually once a year, your certificate will now expire before your next renewal is due. Check your expiry date above and confirm auto-renewal is switched on.
Source: CA/Browser Forum Ballot SC-081v3, approved April 2025 and adopted by all major browsers.
What is an SSL certificate?
An SSL certificate is a small data file installed on your web server that does two jobs: it proves your website is who it claims to be, and it encrypts the traffic between your server and your visitors. When both work, the browser shows a padlock and loads your site over HTTPS instead of HTTP.
What it actually does
A certificate authority (CA) verifies you control your domain, then issues a certificate signed by an authority browsers already trust. When someone visits your site, their browser checks that signature. If it’s valid, unexpired, matches your domain, and the full chain is present, the connection is encrypted and the padlock appears. If any one of those fails, the browser shows a security warning instead.
Why every site needs one
Without a valid certificate, browsers label your site “Not Secure” and any data submitted travels in plain text. Google has treated HTTPS as a ranking signal since 2014, and Chrome flags every non-HTTPS page. For any site that takes logins, payments, or form submissions, a certificate is a baseline requirement rather than an upgrade.
What’s the difference between SSL and TLS?
TLS (Transport Layer Security) is the modern replacement for SSL (Secure Sockets Layer). SSL was deprecated years ago – SSL 3.0 was formally retired in 2015 – and every secure connection today actually uses TLS, most commonly TLS 1.2 or TLS 1.3. The name “SSL certificate” simply stuck: what you buy, install, and check is a TLS certificate that almost everyone still calls SSL. There is no practical difference in what you need to do – if a tool reports “TLS 1.3”, that is your SSL working correctly on the current protocol.
Online SSL checker that verifies, Interprets and tells you what to fix.
Most SSL, DNS, uptime, and speed tools just hand you raw details to interpret. Our tools diagnose, explain the root cause, and give you a fix you can act on. Our SSL checker doesn’t just Validate the certificate details, it gives you verdict, context, root cause, and the exact steps to fix.
SSL Validator and SSL certificate Verification questions answered for Indian websites
Every question is answered in simple terms – no jargon, no technical assumptions.
How do I verify my SSL certificate?
How do I check my SSL certificate expiry date?
What happens when my SSL certificate expires?
Why is my SSL certificate not working after I changed hosting?
How do I check my SSL certificate chain?
My SSL checker shows “Valid” but my site still shows Not Secure – why?
Does SSL affect my website’s Google ranking in India?
What’s the difference between DV, OV, and EV certificates?
Do I need a wildcard certificate for subdomains?
Is this SSL checker free to use?
Built by people with 13+ years of hands-on experience in the Indian web hosting industry - including those who've managed SSL certificates on live sites. Reviewed against CA/Browser Forum certificate rules in effect for 2026. We explain what a result means, its root cause and how to fix it.
SSL certificate types & pricing at renewal
A buyer’s reference. All three validation levels use the same 256-bit encryption – the only difference is how much the certificate authority verifies your identity, plus the warranty. Most websites are well served by free DV (Let’s Encrypt); paid certificates matter mainly when you need verified organisation identity (OV/EV) or a warranty.
SSL provider comparison – watch the renewal price
The cheapest first-year price is not always the cheapest to keep. The renewal column is where some vendors quietly raise the price after an introductory term. Figures below are indicative India rates – always confirm on the vendor’s own checkout before buying.
| Provider | Type | First year | Renewal | Renewal note | |
|---|---|---|---|---|---|
| Let’s Encrypt | DV | Free | Free | Auto-renews every 90 days – needs host support | Visit → |
| RapidSSL via resellers | DV | ~₹872–1,050 | ~Similar | Consistent reseller pricing, DigiCert root | Visit → |
| PositiveSSL Sectigo / Comodo | DV | ~₹1,344 | ~Similar | Cheapest paid DV; $10k warranty + dynamic seal | Visit → |
| GoDaddy | DV | ~₹3,228 3-yr intro | ~₹17,997/yr | Big jump after intro term – verify before committing | Visit → |
| Sectigo OV | OV | ~₹7,056 | ~Similar | Organisation identity verified | Visit → |
| PositiveSSL EV | EV | ~₹7,564 | ~Similar | Most affordable EV available in India | Visit → |
| GeoTrust EV | EV | ~₹17,144 | ~Similar | TrueBusiness ID EV | Visit → |
Prices are indicative India market rates and change frequently – always confirm on the provider’s checkout. A payment gateway does not technically require a paid certificate (PCI-DSS is satisfied by any valid TLS, including Let’s Encrypt); choose OV/EV only if you specifically need verified organisation identity or a warranty. Some outbound links may be partner links that support this free tool at no extra cost to you.