Check Detail
heathrow.com · SSL
Passed
Grade A
100.0%
Result Detail
SSL| Check name | Status | Value |
|---|---|---|
| certificate chain is complete | ✅ Passed | 4 |
| root CA is trusted | ✅ Passed | Trusted |
| cert valid for | ✅ Passed | 240 |
| chain certs are valid until | ✅ Passed | 09.08.2026 |
| CN matches Domainname | ✅ Passed | heathrow.com |
| certificate subject | ✅ Passed | C=GB, L=Hounslow, O=Heathrow Airport Holdings Limited, CN=www.heathrow.com |
| certificate issuer | ✅ Passed | C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
| signature algorithm | ✅ Passed | RSA-SHA256 |
| TLS protocol | ✅ Passed | TLSv1.3 TLS_AES_256_GCM_SHA384 |
| Subject Alternative Names | ✅ Passed | heathrow.com, www.heathrow.com |
| Public Key | ✅ Passed | RSA 2048 |
Certificate chain
| # | Common name | Issuer | Valid until | CA |
|---|---|---|---|---|
| 0 | www.heathrow.com | C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 09.08.2026 01:59:59 | No |
| 1 | www.heathrow.com | C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 | 09.08.2026 01:59:59 | No |
| 2 | DigiCert Global G2 TLS RSA SHA256 2020 CA1 | C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root G2 | 30.03.2031 00:59:59 | Yes |
| 3 | DigiCert Global Root G2 | C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root G2 | 15.01.2038 13:00:00 | Yes |
TLS details
| Negotiated protocol | TLSv1.3 |
|---|---|
| Cipher suite | TLS_AES_256_GCM_SHA384 (256 bit) |
| Cipher version | TLSv1.3 |
| Perfect Forward Secrecy | Attention |
| Earliest chain expiry | 09.08.2026 01:59 |
Fingerprints
| SHA-256 | 58:9D:C9:AC:29:76:CD:87:4C:D8:E0:69:F4:17:2A:53:DA:F7:72:6F:ED:67:D0:4B:3F:AC:AA:0B:BE:E9:C8:6A |
|---|---|
| SHA-1 | 3F:8F:8E:5B:93:A7:8F:01:DF:CD:61:B7:D4:47:15:BD:2C:A3:9D:2A |
Revocation
OCSP URLs
http://ocsp.digicert.com
CRL URLs
Full Name:
URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
Full Name:
URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
Issuer URLs (AIA)
http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
OCSP Must-Staple
No
Trust evaluation
Attempted: Yes
Trusted: Yes
OpenSSL diagnostic command
openssl s_client -connect heathrow.com:443 -servername heathrow.com