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THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

rccd.edu · 3.209.26.193:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed

Certificate verification failed

Subject
CN=rccd.edu
Issuer
C=US O=Internet2 CN=InCommon Intermediate CA - DVG2C
Valid from
2026-09-08T16:17:53+00:00
Expires
2027-03-26T16:17:53+00:00
Days remaining
170
Serial (hex)
5A0648CC3DA0235C9111539888D469
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

DNS:rccd.edu, DNS:info.rccd.edu, DNS:socialjustice.rccd.edu, DNS:annualreport.rccd.edu, DNS:www.rccd.edu, DNS:extendedlearning.rccd.edu, DNS:wed.rccd.edu, DNS:www.info.rccd.edu

SHA-256 fingerprint

DE:FD:4D:91:7A:48:F6:19:5C:7B:F6:AF:7D:1E:EF:AA:30:D2:EC:64:76:BA:F1:3D:E0:AA:49:1C:19:87:F6:B6
Certificate extensions & PEM
authorityKeyIdentifier
B3:62:6D:7C:F1:32:83:56:9B:44:0D:DA:20:8C:F8:DC:91:53:5F:40
subjectKeyIdentifier
15:DE:DF:AE:23:66:E9:13:16:75:5C:7A:93:11:B9:87:59:F3:EF:F6
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.5923.1.4.3.1.2 CPS: https://incommon.org/certificates/repository Policy: 1.3.6.1.4.1.50977.1.2.100 Policy: 2.23.140.1.2.1
authorityInfoAccess
OCSP - URI:http://ocsp-c.emsign.com CA Issuers - URI:http://repository.emsign.com/certs/EEEMIncommonDVG2C.crt
crlDistributionPoints
Full Name: URI:http://crl-c.emsign.com/?EEEMIncommonDVG2C.crl
subjectAltName
DNS:rccd.edu, DNS:info.rccd.edu, DNS:socialjustice.rccd.edu, DNS:annualreport.rccd.edu, DNS:www.rccd.edu, DNS:extendedlearning.rccd.edu, DNS:wed.rccd.edu, DNS:www.info.rccd.edu
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 8 16:17:54.822 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:44:BC:58:08:18:74:87:AB:EC:D5:EA:B6: 77:50:A1:93:A0:BD:1D:D3:F6:01:E7:DA:DC:55:40:01: F4:A8:77:3D:02:20:2E:1F:93:48:F4:6E:2F:85:25:0E: A4:7A:EF:A7:88:46:3D:41:FB:DF:90:1C:3C:8A:1E:AD: 43:E9:FE:26:EA:78 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Sep 8 16:17:54.828 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6E:D3:45:F1:B9:6A:CA:68:62:1B:13:41: A8:41:70:D9:40:EA:C8:A9:A0:14:58:BD:52:F5:97:84: E4:72:A0:43:02:21:00:A1:2A:C3:96:B8:D8:6A:CD:B9: A7:2E:D6:7B:74:B8:0C:A6:6C:18:01:8A:34:E5:BF:32: 6B:3A:6C:29:04:E4:E2 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Sep 8 16:17:55.064 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0D:E8:92:AC:90:D5:62:F5:CF:6F:49:C4: FB:0A:02:6C:03:3A:0B:65:97:2E:11:C5:47:F0:4A:25: 9D:D0:6B:42:02:20:10:4D:C2:8B:F6:F8:5C:12:DD:DF: F6:6C:DE:DA:72:44:FE:28:37:4C:DA:8A:68:9F:12:8F: BC:F6:44:5E:CA:10
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-06T19:31:09+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Internet2 CN=InCommon Intermediate CA - DVG2C
Issuer
C=IN O=eMudhra Technologies Limited CN=emSign Root TLS CA - G1
Valid from
2026-04-08T19:44:46+00:00
Expires
2029-04-07T19:44:46+00:00
Days remaining
914
Serial (hex)
4FE567B5B596FA438DC6D291B3CB43
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

83:09:05:81:23:07:DF:14:C3:D9:D7:1B:9A:5A:83:24:79:40:85:7D:D2:0B:F6:D6:7F:64:93:D2:07:0D:A6:49
Certificate extensions & PEM
authorityKeyIdentifier
64:1D:C9:D8:F8:C4:EC:04:4B:22:81:F5:32:9A:5E:B9:E7:93:52:F9
subjectKeyIdentifier
B3:62:6D:7C:F1:32:83:56:9B:44:0D:DA:20:8C:F8:DC:91:53:5F:40
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.5923.1.4.3.1.2 CPS: https://incommon.org/certificates/repository Policy: 1.3.6.1.4.1.50977.1.2.100 Policy: 2.23.140.1.2.1
authorityInfoAccess
OCSP - URI:http://ocsp-c.emsign.com CA Issuers - URI:http://repository.emsign.com/certs/EMIncommonDVG2C.p7c
crlDistributionPoints
Full Name: URI:http://crl.emsign.com/?roottlscag1.crl
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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