SSL Checker
Submit the Hostname and Port in the fields below. This checker supports SNI and STARTTLS.
Report
It's all good. We have not detected any issues.
| Hostname: | done Matches Common Name or/and SAN |
| Expired: | done No (89 days till expiration) |
| Public Key: | done We were unable to find any issues in the public key of end-entity certificate |
| Trusted: | done Yes, we were able to verify the certificate |
| Self-Signed: | done No, the end-entity certificate is not self-signed |
| Chain Issues: | done No, we were unable to detect any issues in the certificate chain sent by the server |
| Weak signatures: | done No, certificates sent by the server were not signed utilizing a weak hash function |
| OCSP Status: | done OCSP Responder returned "good" status for the end-entity certificate |
DNS Information
| CNAME: | https.cio.gov.external-domains-production.cloud.gov. |
| Resolves To: | 18.239.199.60 |
| Reverse IP lookup: | server-18-239-199-60.sfo53.r.cloudfront.net. |
| Nameserver: | dns2.gsa.gov. |
| Nameserver: | dns3.gsa.gov. |
| Nameserver: | dns.gsa.gov. |
| Nameserver: | dns4.gsa.gov. |
| Nameserver: | dns5.gsa.gov. |
General Information
| Common Name: | https.cio.gov |
| SANs: | DNS:https.cio.gov Total number of SANs: 1 |
| Signature Algorithm: | sha256WithRSAEncryption |
| Key Type: | RSA |
| Key size: | 2048 bits |
| Serial Number: | 388abc253d457c925ea2dca20aebafe50be |
| Not Before: | Jan 30, 2025 16:20:53 GMT |
| Not After: | Apr 30, 2025 16:20:52 GMT |
| Number of certs: | 2 |
| Revocation Status: | good |
| OCSP Stapling: | Not Supported |
| Server: | Not Provided |
| HSTS: | max-age=31536000; preload |
| HPKP: | Not Supported |
Chain Information
Certificate # 1 - Common Name: https.cio.gov
Decode this certificate for verbose information → launch| Subject Common Name | https.cio.gov |
| Issuer Common Name | R10 |
| Issuer Organization | Let's Encrypt |
| Not Before: | Jan 30, 2025 16:20:53 GMT |
| Not After: | Apr 30, 2025 16:20:52 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 388abc253d457c925ea2dca20aebafe50be |
| SHA1 Fingerprint: | C7:FD:50:76:AF:41:30:5B:FF:5C:50:E9:5A:2C:D3:16:5E:35:17:BE |
| MD5 Fingerprint: | A2:97:B3:C8:35:E3:43:1E:DB:96:FD:FB:28:06:5F:A0 |
Certificate # 2 - Common Name: R10
Decode this certificate for verbose information → launch| In place? | Yes, this certificate directly certifies the preceding one |
| Subject Common Name | R10 |
| Subject Organization | Let's Encrypt |
| Issuer Common Name | ISRG Root X1 |
| Issuer Organization | Internet Security Research Group |
| Not Before: | Mar 13, 2024 00:00:00 GMT |
| Not After: | Mar 12, 2027 23:59:59 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 4ba85293f79a2fa273064ba8048d75d0 |
| SHA1 Fingerprint: | 00:AB:EF:D0:55:F9:A9:C7:84:FF:DE:AB:D1:DC:DD:8F:ED:74:14:36 |
| MD5 Fingerprint: | AF:1C:77:AE:CC:8D:77:E9:AA:CB:0C:47:58:40:C3:92 |
OpenSSL Handshake
depth=2 C = US, O = Internet Security Research Group, CN = ISRG Root X1 verify return:1 depth=1 C = US, O = Let's Encrypt, CN = R10 verify return:1 depth=0 CN = https.cio.gov verify return:1 CONNECTED(00000003) OCSP response: no response sent --- Certificate chain 0 s:CN = https.cio.gov i:C = US, O = Let's Encrypt, CN = R10 -----BEGIN CERTIFICATE----- MIIE6jCCA9KgAwIBAgISA4irwlPUV8kl6i3KIK66/lC+MA0GCSqGSIb3DQEBCwUA MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD EwNSMTAwHhcNMjUwMTMwMTYyMDUzWhcNMjUwNDMwMTYyMDUyWjAYMRYwFAYDVQQD Ew1odHRwcy5jaW8uZ292MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA jj94TVE8puc7NOHi08ZFIfPv69j5br8XSW8Xl12hwe1QLx0OBfsWNJ+iCB84fJjI TgkDHl/kOLdyezlRDY1c2YF6ecqEhoFOIsaDlOFtQcWqPwIUq+S4aISn8IJx17Xc H9OUJeHboDpF0OUAcOhRT9tkzSWnwQBF8i973aTlhWe+gRHb1aRaYjq3pkRU822u U2aDWmPHTNigzFNewDr/02JCOqlbNQ4MkakkWtDwaWf3R5dP7aUnK0BTP0JUYx5t 6oI3x4O3/hiRSHteOcWW0pyzquuhj5p90HEHWfcaHi1pEdfUclpvJeiPKUVzg21h epoHUZve8EH9vYFcoLfyFwIDAQABo4ICETCCAg0wDgYDVR0PAQH/BAQDAgWgMB0G A1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1Ud DgQWBBRmTzb76AVfgO6qtFSO5kx2K4IjcDAfBgNVHSMEGDAWgBS7vMNHpeS8qcbD pHIMEI2iNeHI6DBXBggrBgEFBQcBAQRLMEkwIgYIKwYBBQUHMAGGFmh0dHA6Ly9y MTAuby5sZW5jci5vcmcwIwYIKwYBBQUHMAKGF2h0dHA6Ly9yMTAuaS5sZW5jci5v cmcvMBgGA1UdEQQRMA+CDWh0dHBzLmNpby5nb3YwEwYDVR0gBAwwCjAIBgZngQwB AgEwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdQBzICIPCBaK+fPEposKsmqaSgDu 9XeFighNBQDUpUJEWQAAAZS4OX/mAAAEAwBGMEQCIHo1cFXxVfbquxY/FYChGANP k7hIHTRRkGl1SIFcDQwNAiByMrDV0rr4bqdLHiBg2EtRJCIPTIEwmqEL//VEzYaz 4wB3ABNK3xq1mEIJeAxv70x6kaQWtyNJzlhXat+u2qfCq+AiAAABlLg5gPkAAAQD AEgwRgIhAIgoob/iBx+SZi/XDWAAnIkGUA8EXtfW3cM6FrnN9o69AiEAzKs3DjsK OnrOFx+rQXt9+qyzv4t38Blw4n7VKYLkHKswDQYJKoZIhvcNAQELBQADggEBABpE iXtEwAkcTN+bPoPKkvNPQUGRpuLkgUXCRdLlQR6CQy8b7QJHa58Q1CZ3NDucMA4O yaPFaf5cjmYcKOMtwrekjpyGx1Mn/80pkYQZ3ctmSece2vchUWZIMmqYKTcWa6Yd oKRt5kNWQ/JnX8MfkR5KdAFZgkw3e4BDxN/RaougYSvcPzMKlYnWiLbTbuuiKeDX 3A+vONk/Hkjojo6MDERQujkwZFdQv+STBUkPS/7H8rgktiyYNS3p8HPW9/LPeRbg svvWZLBAsW1ufUWEuxjhA4OacY018WUPYIn9i5QJuIrA6ryJAeWpQgl++zEC5y4Q 39qfFD8OHE24xQNz43s= -----END CERTIFICATE----- 1 s:C = US, O = Let's Encrypt, CN = R10 i:C = US, O = Internet Security Research Group, CN = ISRG Root X1 -----BEGIN CERTIFICATE----- MIIFBTCCAu2gAwIBAgIQS6hSk/eaL6JzBkuoBI110DANBgkqhkiG9w0BAQsFADBP MQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJuZXQgU2VjdXJpdHkgUmVzZWFy Y2ggR3JvdXAxFTATBgNVBAMTDElTUkcgUm9vdCBYMTAeFw0yNDAzMTMwMDAwMDBa Fw0yNzAzMTIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBF bmNyeXB0MQwwCgYDVQQDEwNSMTAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK AoIBAQDPV+XmxFQS7bRH/sknWHZGUCiMHT6I3wWd1bUYKb3dtVq/+vbOo76vACFL YlpaPAEvxVgD9on/jhFD68G14BQHlo9vH9fnuoE5CXVlt8KvGFs3Jijno/QHK20a /6tYvJWuQP/py1fEtVt/eA0YYbwX51TGu0mRzW4Y0YCF7qZlNrx06rxQTOr8IfM4 FpOUurDTazgGzRYSespSdcitdrLCnF2YRVxvYXvGLe48E1KGAdlX5jgc3421H5KR mudKHMxFqHJV8LDmowfs/acbZp4/SItxhHFYyTr6717yW0QrPHTnj7JHwQdqzZq3 DZb3EoEmUVQK7GH29/Xi8orIlQ2NAgMBAAGjgfgwgfUwDgYDVR0PAQH/BAQDAgGG MB0GA1UdJQQWMBQGCCsGAQUFBwMCBggrBgEFBQcDATASBgNVHRMBAf8ECDAGAQH/ AgEAMB0GA1UdDgQWBBS7vMNHpeS8qcbDpHIMEI2iNeHI6DAfBgNVHSMEGDAWgBR5 tFnme7bl5AFzgAiIyBpY9umbbjAyBggrBgEFBQcBAQQmMCQwIgYIKwYBBQUHMAKG Fmh0dHA6Ly94MS5pLmxlbmNyLm9yZy8wEwYDVR0gBAwwCjAIBgZngQwBAgEwJwYD VR0fBCAwHjAcoBqgGIYWaHR0cDovL3gxLmMubGVuY3Iub3JnLzANBgkqhkiG9w0B AQsFAAOCAgEAkrHnQTfreZ2B5s3iJeE6IOmQRJWjgVzPw139vaBw1bGWKCIL0vIo zwzn1OZDjCQiHcFCktEJr59L9MhwTyAWsVrdAfYf+B9haxQnsHKNY67u4s5Lzzfd u6PUzeetUK29v+PsPmI2cJkxp+iN3epi4hKu9ZzUPSwMqtCceb7qPVxEbpYxY1p9 1n5PJKBLBX9eb9LU6l8zSxPWV7bK3lG4XaMJgnT9x3ies7msFtpKK5bDtotij/l0 GaKeA97pb5uwD9KgWvaFXMIEt8jVTjLEvwRdvCn294GPDF08U8lAkIv7tghluaQh 1QnlE4SEN4LOECj8dsIGJXpGUk3aU3KkJz9icKy+aUgA+2cP21uh6NcDIS3XyfaZ QjmDQ993ChII8SXWupQZVBiIpcWO4RqZk3lr7Bz5MUCwzDIA359e57SSq5CCkY0N 4B6Vulk7LktfwrdGNVI5BsC9qqxSwSKgRJeZ9wygIaehbHFHFhcBaMDKpiZlBHyz rsnnlFXCb5s8HKn5LsUgGvB24L7sGNZP2CX7dhHov+YhD+jozLW2p9W4959Bz2Ei RmqDtmiXLnzqTpXbI+suyCsohKRg6Un0RC47+cpiVwHiXZAW+cn8eiNIjqbVgXLx KPpdzvvtTnOPlC7SQZSYmdunr3Bf9b77AiC/ZidstK36dRILKz7OA54= -----END CERTIFICATE----- --- Server certificate subject=CN = https.cio.gov issuer=C = US, O = Let's Encrypt, CN = R10 --- No client certificate CA names sent Peer signing digest: SHA256 Peer signature type: RSA-PSS Server Temp Key: X25519, 253 bits --- SSL handshake has read 3100 bytes and written 388 bytes Verification: OK --- New, TLSv1.3, Cipher is TLS_AES_128_GCM_SHA256 Server public key is 2048 bit Secure Renegotiation IS NOT supported Compression: NONE Expansion: NONE No ALPN negotiated Early data was not sent Verify return code: 0 (ok) --- DONE