DNS
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

csulb.edu · 134.139.19.21:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=web.csulb.edu
Issuer
C=US O=SSL Corporation CN=SSL.com TLS Issuing RSA CA R1
Valid from
2026-11-14T00:37:03+00:00
Expires
2027-05-31T00:37:03+00:00
Days remaining
197
Serial (hex)
3F43590B0F13527A9618C60903963DDD
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:web.csulb.edu, DNS:beachfunder.csulb.edu, DNS:beachid.csulb.edu, DNS:beachgo.csulb.edu, DNS:beachboard.csulb.edu, DNS:cota.csulb.edu, DNS:calrep.csulb.edu, DNS:emergency.csulb.edu, DNS:csulb.edu, DNS:daily49er.csulb.edu, DNS:careers.csulb.edu, DNS:beachmail.csulb.edu, DNS:homeweb.csulb.edu, DNS:my.csulb.edu, DNS:its-web06.its.csulb.edu, DNS:its-web07.its.csulb.edu, DNS:chemistry.csulb.edu, DNS:outreach.csulb.edu, DNS:japanesegarden.csulb.edu, DNS:itkb.csulb.edu, DNS:help.csulb.edu, DNS:helpdesk.csulb.edu, DNS:parking.csulb.edu, DNS:rh9-web.csulb.edu, DNS:ppfm.csulb.edu, DNS:physics.csulb.edu, DNS:passport.csulb.edu, DNS:maps.csulb.edu, DNS:password.csulb.edu, DNS:map.csulb.edu, DNS:mail.csulb.edu, DNS:training.csulb.edu, DNS:www.cota.csulb.edu, DNS:sso.csulb.edu, DNS:shop.asi.csulb.edu, DNS:www.calrep.csulb.edu, DNS:www.foundation.csulb.edu, DNS:www.careers.csulb.edu, DNS:www.beachmail.csulb.edu, DNS:www.cnsm.csulb.edu, DNS:www.ced.csulb.edu, DNS:www.outreach.csulb.edu, DNS:www.physics.csulb.edu, DNS:www.csulb.edu, DNS:www.training.csulb.edu, DNS:www.ppfm.csulb.edu, DNS:www.sso.csulb.edu, DNS:catalog.csulb.edu, DNS:www.helpdesk.csulb.edu

SHA-256 fingerprint

E7:11:A5:6A:FE:27:F8:60:90:D3:4E:9C:84:D5:09:A8:64:BE:AC:54:B2:76:AC:B9:D3:B1:33:C8:B9:F6:E2:B0
Certificate extensions & PEM
basicConstraints
CA:FALSE
authorityKeyIdentifier
79:BA:94:77:A0:0D:19:DD:34:E6:39:A4:FC:4C:A5:D2:5A:6D:F5:8C
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSL.com-TLS-I-RSA-R1.cer OCSP - URI:http://ocsps.ssl.com
subjectAltName
DNS:web.csulb.edu, DNS:beachfunder.csulb.edu, DNS:beachid.csulb.edu, DNS:beachgo.csulb.edu, DNS:beachboard.csulb.edu, DNS:cota.csulb.edu, DNS:calrep.csulb.edu, DNS:emergency.csulb.edu, DNS:csulb.edu, DNS:daily49er.csulb.edu, DNS:careers.csulb.edu, DNS:beachmail.csulb.edu, DNS:homeweb.csulb.edu, DNS:my.csulb.edu, DNS:its-web06.its.csulb.edu, DNS:its-web07.its.csulb.edu, DNS:chemistry.csulb.edu, DNS:outreach.csulb.edu, DNS:japanesegarden.csulb.edu, DNS:itkb.csulb.edu, DNS:help.csulb.edu, DNS:helpdesk.csulb.edu, DNS:parking.csulb.edu, DNS:rh9-web.csulb.edu, DNS:ppfm.csulb.edu, DNS:physics.csulb.edu, DNS:passport.csulb.edu, DNS:maps.csulb.edu, DNS:password.csulb.edu, DNS:map.csulb.edu, DNS:mail.csulb.edu, DNS:training.csulb.edu, DNS:www.cota.csulb.edu, DNS:sso.csulb.edu, DNS:shop.asi.csulb.edu, DNS:www.calrep.csulb.edu, DNS:www.foundation.csulb.edu, DNS:www.careers.csulb.edu, DNS:www.beachmail.csulb.edu, DNS:www.cnsm.csulb.edu, DNS:www.ced.csulb.edu, DNS:www.outreach.csulb.edu, DNS:www.physics.csulb.edu, DNS:www.csulb.edu, DNS:www.training.csulb.edu, DNS:www.ppfm.csulb.edu, DNS:www.sso.csulb.edu, DNS:catalog.csulb.edu, DNS:www.helpdesk.csulb.edu
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.38064.1.3.1.1
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSL.com-TLS-I-RSA-R1.crl
subjectKeyIdentifier
99:3A:52:83:00:22:6B:32:62:5E:3D:AD:5D:E9:56:D1:BB:BE:19:44
keyUsage
Digital Signature, Key Encipherment
ct_precert_scts
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 : Nov 14 00:47:05.078 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:D8:A5:F0:9D:A8:4F:FA:10:A4:C0:E5: F8:86:D4:8B:71:17:5D:3B:D6:5A:E1:A5:83:6E:A4:99: 5E:3A:8F:2C:B0:02:20:6F:D3:E0:23:9C:35:1E:0D:7F: A5:E1:03:3A:6C:33:6C:91:2A:F6:38:98:B2:99:EB:E4: 5F:F3:00:10:92:0E:E6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Nov 14 00:47:05.049 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A3:60:56:41:4F:01:2E:93:6D:5E:C2: 2B:ED:CE:44:9D:53:E0:CD:DB:ED:70:09:60:A9:E7:7A: 88:22:C2:E1:56:02:20:00:D5:A8:E5:6E:74:35:91:ED: 23:E0:97:2E:DE:3E:37:66:81:A3:1B:A7:23:02:89:AF: FB:AB:48:10:A9:D9:2A Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 00:1A:5D:1A:1C:2D:93:75:B6:48:55:78:F8:2F:71:A1: AE:6E:EF:39:7D:29:7C:8A:E3:15:7B:CA:DE:E1:A0:1E Timestamp : Nov 14 00:47:05.070 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6E:91:8E:1B:61:F9:F0:4D:81:C0:88:A9: 02:7A:6E:A3:1A:17:BA:3C:43:E1:A9:D3:76:CB:43:31: AF:76:3B:AA:02:20:07:91:56:8E:28:DB:B2:26:43:58: A2:CD:B3:FC:D3:6D:23:EA:C7:29:F9:A0:3D:21:38:41: CB:9B:BF:6D:92:DF
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-14T07:13:51+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=SSL Corporation CN=SSL.com TLS Issuing RSA CA R1
Issuer
C=US O=SSL Corporation CN=SSL.com TLS RSA Root CA 2022
Valid from
2022-10-21T17:02:03+00:00
Expires
2032-10-18T17:02:02+00:00
Days remaining
2165
Serial (hex)
26B9FFE4596FA61E1AF21C63D672748A
Signature
RSA-SHA256
Public key
RSA 3072

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

BF:BC:39:E9:FA:2B:84:C9:A9:23:37:E2:34:4E:E2:38:1D:8D:3D:3A:E8:EA:75:EF:4E:48:E5:80:7E:D8:0C:69
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
authorityKeyIdentifier
FB:2E:37:EE:E3:84:7A:27:2E:CD:19:35:B1:33:7C:FF:D4:44:42:B9
authorityInfoAccess
CA Issuers - URI:http://cert.ssl.com/SSLcom-TLS-Root-2022-RSA.cer
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.ssl.com/repository
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crls.ssl.com/SSLcom-TLS-Root-2022-RSA.crl
subjectKeyIdentifier
79:BA:94:77:A0:0D:19:DD:34:E6:39:A4:FC:4C:A5:D2:5A:6D:F5:8C
keyUsage
Digital Signature, Certificate Sign, CRL Sign
-----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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