MyIPScan

Website Security Tool

SSL Certificate Checker

Check certificate transparency records for a public hostname and review issuer, expiry, Subject Alternative Names, and hostname match signals. This is a limited certificate record check, not a full TLS security audit.

Check a certificate record

Enter one public domain or hostname. URLs are accepted only when they do not include credentials or custom ports.
Technical response details (optional)
Trust note: this server-assisted check uses cached public certificate transparency records and does not require an account.


What this checks
MyIPScan queries public Certificate Transparency data for the hostname and selects the most relevant certificate record it can safely parse. When available, the result includes common name, issuer, SANs, issued date, expiry date, days remaining, and a hostname match signal.
What the results mean
An expiry warning means the selected certificate record is close to or past its not-after date. A hostname mismatch signal means the selected record did not list the checked hostname directly or through a matching wildcard name. These signals are useful, but they do not prove the full security posture of a website.
How to use this tool
  1. Enter a public hostname such as example.com or www.example.com.
  2. Review the expiry state, issuer, SANs, and hostname match result.
  3. Use Website Exposure Scanner, CAA Lookup, DNS Lookup, Redirect Checker, Robots.txt Checker, Sitemap Checker, Canonical / Noindex Checker, Open Graph / Social Preview Checker, Structured Data / JSON-LD Validator, and Security Headers Checker for related website context.


FAQ
What is an SSL certificate?
An SSL/TLS certificate binds a hostname to public-key information so browsers can set up encrypted HTTPS connections and show certificate identity details.
How do I check certificate expiration?
Enter the domain or hostname. MyIPScan shows the selected public certificate record expiry date and days remaining when available.
Why does certificate mismatch happen?
A mismatch can happen when the hostname is not listed in the certificate common name or Subject Alternative Names, or when public CT data does not reflect the exact certificate currently served.
Does HTTPS always mean a website is safe?
No. HTTPS protects transport for a hostname, but it does not prove site content, owner identity, account safety, or full security posture.
What happens when a certificate expires?
Browsers may show a certificate warning and users may be blocked or discouraged from continuing until the operator renews or replaces the certificate.


Limitations
The current runtime does not expose direct TLS certificate inspection. This tool uses public Certificate Transparency records, with crt.sh as the primary source and a free Cert Spotter CT fallback when the primary source is unavailable or too slow. Results can lag behind what a server currently presents during a live TLS handshake. See the methodology for how MyIPScan labels limited checks.







  

    
B2B diagnostic report model

    
Website and domain diagnostics

    
Public website checks connect HTTPS/SSL, redirects, headers, DNS, robots/sitemap, canonical/noindex, structured data, and social preview signals.

  

  

    
SummaryStart with a plain-language status for the public target.

    
Top issuesPrioritize the few findings that need attention first.

    
What passedShow expected public signals without turning them into a certification.

    
What needs reviewSeparate limited, unavailable, and review-worthy signals.

    
Why it mattersExplain the business, delivery, crawl, or implementation impact.

    
Recommended fixesPoint to the DNS, hosting, email, CMS, or SEO owner who can act.

    
What this tool cannot checkThis is not a vulnerability scan, penetration test, malware scan, uptime monitor, or full security audit.

    
Client-safe copyClient-safe copy should keep issue summaries and recommended fixes while avoiding raw headers, cookies, tokens, credentials, and oversized payloads.

    
Monitoring beta (optional)Optional monitoring beta can track public changes in SSL, redirects, headers, DNS, robots/sitemap, canonical/noindex, and metadata after a target is approved.

  

  

    

      
Client-safe report

      
Share findings without leaking raw technical material

      
Use Safe Copy or this page's summary when sending results to a client, vendor, developer, or support team. Raw headers, credentials, tokens, cookies, private addresses, email local-parts, and oversized payloads should stay out of client-facing copy.

    

    

      Review Safe Copy
      Ask about monitoring beta
    

  

  

    Website Exposure ScannerWebsite and domain diagnostics follow-up.
      Caa LookupWebsite and domain diagnostics follow-up.
      Domain Intelligence ReportWebsite and domain diagnostics follow-up.
      Email Deliverability DoctorWebsite and domain diagnostics follow-up.
      AI/Search Visibility ScannerWebsite and domain diagnostics follow-up.
  







  

    

      
Check my website/domain

      
What this checks

      
Public DNS, HTTP, HTTPS, certificate, redirect, header, IP/ASN, or domain configuration signals.

    

    

      
Limits

      
What this cannot check

      
It cannot perform credentialed vulnerability testing, scan private hosts, bypass access controls, or certify complete security.

    

    

      
Read results

      
How to use the output

      
Treat results as review signals for this browser/session or public target. Re-test after one change, then use Safe Copy or notes that avoid raw identifiers.

    

  

  

    

      
Related tools

      
Continue with the closest checks

    

    

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      MethodologyReview how MyIPScan labels signals, limitations, and Safe Copy output.