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SSL Checker SSL & CSR Decoder CSR Generator SSL Converter

SSL Checker

Submit the Hostname and Port in the fields below. This checker supports SNI and STARTTLS.

Report

Hostname: Matches Common Name or/and SAN
Expired: No (32 days till expiration)
Public Key: We were unable to find any issues in the public key of end-entity certificate
Trusted: Yes, we were able to verify the certificate
Self-Signed: No, the end-entity certificate is not self-signed
Chain Issues: No, we were unable to detect any issues in the certificate chain sent by the server
Weak signatures: No, certificates sent by the server were not signed utilizing a weak hash function
OCSP Status: OCSP Responder returned "good" status for the end-entity certificate

DNS Information

Resolves To: 23.185.0.3
Reverse IP lookup: No records found
Nameserver: vip-ns3.usc.edu.
Nameserver: ns5.usc.edu.
Nameserver: ns6.usc.edu.
Nameserver: vip-ns4.usc.edu.

General Information

Common Name: usc.edu
SANs: DNS:about.usc.eduDNS:emergency.usc.eduDNS:usc.eduDNS:visit.usc.eduDNS:www.usc.edu Total number of SANs: 5
Signature Algorithm: sha256WithRSAEncryption
Key Type: RSA
Key size: 2048 bits
Serial Number: 476c0db5f24e04ae1db95292d50616d8600
Not Before: Feb 27, 2024 17:08:12 GMT
Not After: May 27, 2024 17:08:11 GMT
Number of certs: 2
Revocation Status: good
OCSP Stapling: Supported
Server: nginx
HSTS: max-age=300
HPKP: Not Supported

Chain Information

Certificate # 1 - Common Name: usc.edu

Decode this certificate for verbose information →
Subject Common Name usc.edu
Issuer Common Name R3
Issuer Organization Let's Encrypt
Not Before: Feb 27, 2024 17:08:12 GMT
Not After: May 27, 2024 17:08:11 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 476c0db5f24e04ae1db95292d50616d8600
SHA1 Fingerprint: FE:94:16:26:E7:90:E3:08:0F:07:E8:C7:0F:C8:1E:B5:14:3C:DA:45
MD5 Fingerprint: FD:65:64:3E:78:BD:99:74:7D:D2:2D:F8:B2:E4:5C:71

Certificate # 2 - Common Name: R3

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name R3
Subject Organization Let's Encrypt
Issuer Common Name ISRG Root X1
Issuer Organization Internet Security Research Group
Not Before: Sep 04, 2020 00:00:00 GMT
Not After: Sep 15, 2025 16:00:00 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 912b084acf0c18a753f6d62e25a75f5a
SHA1 Fingerprint: A0:53:37:5B:FE:84:E8:B7:48:78:2C:7C:EE:15:82:7A:6A:F5:A4:05
MD5 Fingerprint: E8:29:E6:5D:7C:43:07:D6:FB:C1:3C:17:9E:03:7A:36

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 = R3
verify return:1
depth=0 CN = usc.edu
verify return:1
CONNECTED(00000003)
OCSP response: 
======================================
OCSP Response Data:
    OCSP Response Status: successful (0x0)
    Response Type: Basic OCSP Response
    Version: 1 (0x0)
    Responder Id: C = US, O = Let's Encrypt, CN = R3
    Produced At: Apr 19 20:01:00 2024 GMT
    Responses:
    Certificate ID:
      Hash Algorithm: sha1
      Issuer Name Hash: 48DAC9A0FB2BD32D4FF0DE68D2F567B735F9B3C4
      Issuer Key Hash: 142EB317B75856CBAE500940E61FAF9D8B14C2C6
      Serial Number: 0476C0DB5F24E04AE1DB95292D50616D8600
    Cert Status: good
    This Update: Apr 19 20:01:00 2024 GMT
    Next Update: Apr 26 20:00:58 2024 GMT

    Signature Algorithm: sha256WithRSAEncryption
         23:3e:c1:26:65:77:1e:6a:e6:ec:e0:18:45:94:52:83:09:c1:
         9b:d6:77:41:22:d4:de:ae:7d:3a:76:42:08:1f:7f:54:f3:87:
         36:1d:10:f7:88:c4:3d:14:4b:57:d8:7c:a3:69:e3:61:06:a4:
         e0:db:bf:ff:86:07:f9:c2:92:74:99:b7:70:ca:57:e1:2b:ae:
         b6:19:15:ca:42:8f:10:f0:83:40:42:6e:0a:1c:04:8c:d2:9a:
         f6:00:9b:69:27:52:46:a1:ae:10:e0:28:59:82:ba:d8:56:0f:
         3b:bf:95:d5:81:cd:20:5f:f7:9c:28:72:97:65:eb:cb:f2:b4:
         e8:b0:d1:d8:b8:9c:a1:be:89:89:b9:c2:47:56:9f:cd:98:56:
         20:42:bc:b8:4e:62:48:cd:53:33:a9:25:b7:24:09:fe:20:21:
         e5:b6:ea:23:70:82:c9:b8:60:f6:91:75:3c:1b:56:0f:30:ee:
         90:9c:e0:f6:34:88:b8:8a:7a:e5:b1:ea:92:60:d5:4c:83:c8:
         eb:36:71:df:42:70:51:a0:22:ad:04:2e:22:2e:b1:60:c6:ff:
         78:7b:0f:f4:dd:da:a0:2b:86:7d:71:49:3d:4e:5a:74:b3:65:
         b6:b7:c8:9a:ab:e9:6e:e3:1b:6c:60:b0:66:a1:bc:8a:7a:b5:
         d0:17:5f:eb
======================================
---
Certificate chain
 0 s:CN = usc.edu
   i:C = US, O = Let's Encrypt, CN = R3
-----BEGIN CERTIFICATE-----
MIIFGjCCBAKgAwIBAgISBHbA218k4Erh25UpLVBhbYYAMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAyMjcxNzA4MTJaFw0yNDA1MjcxNzA4MTFaMBIxEDAOBgNVBAMT
B3VzYy5lZHUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDAdKd6a/TB
nNxcCAyQFBfO3CM0cWsekizlrGvPOt2XDtP4ZkBAs+JS9JmYXdJxFDU2LvszvC++
PxYqASbqSaQgayoSvU3BU7/0z5t8vh4/LXLBXztbHtk5VUrglYkypy061ZnKcnPe
Nfrs11rT70H77j83hMBoulSfG7zeYxpMv6X/zJiKfSIi3HFndhEy8vygw70FaoWK
CEJKzN8ilG58YeOkR6h0ll7touLsNx4+/DJdlaL9qXVhB4J0WSumRyCTybKE/8A/
NCOTdt0oCXApAN29BHhjdv5swlWJsNZWtWqMvP7JuloAmI6Mo6an00MLotk8m6NW
wT6a9hHzLZlVAgMBAAGjggJIMIICRDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYw
FAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFPqn
MCJguLsYsLVvaKPMOXITyyIUMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYfr52L
FMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8ubGVu
Y3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMFAGA1Ud
EQRJMEeCDWFib3V0LnVzYy5lZHWCEWVtZXJnZW5jeS51c2MuZWR1ggd1c2MuZWR1
gg12aXNpdC51c2MuZWR1ggt3d3cudXNjLmVkdTATBgNVHSAEDDAKMAgGBmeBDAEC
ATCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2AEiw42vapkc0D+VqAvqdMOscUgHL
Vt0sgdm7v6s52IRzAAABjevAuQgAAAQDAEcwRQIhAIP9XorKvu/wgwguwHHYvsP8
p7K1Toibv9JenC4MEynXAiB3z9CQbKK+W9Y+g5tEvofarj2mPf/IP8Ptvc72RSAH
ZgB3AHb/iD8KtvuVUcJhzPWHujS0pM27KdxoQgqf5mdMWjp0AAABjevAuVUAAAQD
AEgwRgIhAMnQRNVxcHROTLt497VhA1MyhSJflXxAIxoBB4kBAisJAiEAtKGtKd1I
wd9cZ1dQzxOCDr5k9fR4d9vOKZoVRjvJmeUwDQYJKoZIhvcNAQELBQADggEBAICf
GtU8QNiF8zLa4vNvfMsB6vOxOwRGsZp2Nnrico07SxBvDMoiEz98pJ7XHSFyoqzD
XCJgN0nUwGK3mBFBgtOzbdOeKzp6TXaRXU5xuYf9t12lYi1jvd4QF1CLFpMt1+6f
csNY2tkuNVMmIc8uOAXd7O9YKQcT+J9JgytJRbqR/xR3VyOw0Ch4UnsB6gj8FbDL
DeOAisOpv1hWOE9ixvm7o9pwQFMkHediaIGXVx31TG2XpHymQKHcJHoGzzE7FaNP
JgivGKteXJuDKXwAhJfpfCHxFdoMVYOtpQWd5M8gzEbv0AbUICo1TNwm3vRj9rG8
/kQ0NG4NOljc0duM6Tk=
-----END CERTIFICATE-----
 1 s:C = US, O = Let's Encrypt, CN = R3
   i:C = US, O = Internet Security Research Group, CN = ISRG Root X1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
---
Server certificate
subject=CN = usc.edu

issuer=C = US, O = Let's Encrypt, CN = R3

---
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 3676 bytes and written 382 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
---
Post-Handshake New Session Ticket arrived:
SSL-Session:
    Protocol  : TLSv1.3
    Cipher    : TLS_AES_128_GCM_SHA256
    Session-ID: 29A193A01AEB6820197AB8A92B2C83D3A9D0F93B3DFEBE4908FDDBD0FCEBFE8B
    Session-ID-ctx: 
    Resumption PSK: 7CF00093B7BFE7D4DD608619D53E2C1EDE11B7775F16F779AF83ADAF4C526C09
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 3600 (seconds)
    TLS session ticket:
    0000 - 19 4a 97 9e 91 a0 82 c4-80 98 c7 4d 41 6a 77 0c   .J.........MAjw.
    0010 - 07 60 b2 df 75 33 6d 56-d9 f8 27 dd e0 2b 96 bf   .`..u3mV..'..+..
    0020 - cb 80 0b 4d 3a a8 bb 4a-76 80 f1 df 55 ac e3 fd   ...M:..Jv...U...
    0030 - 70 a4 ee 56 a8 1e 29 8a-cb c3 b3 6b 09 d9 84 f5   p..V..)....k....
    0040 - fd 09 4a 26 3d 86 40 23-3e 63 33 07 14 39 43 bd   ..J&=.@#>c3..9C.
    0050 - a2 2f d4 39 d6 9f 77 9a-e8 e7 c1 c6 3e 14 07 e7   ./.9..w.....>...
    0060 - 8d 80 ef e1 0f 36 22 ba-58 5b 51 3d e5 d9 40 57   .....6".X[Q=..@W
    0070 - fd b8 a3 95 a2 4c 1e ea-94 2c 55 ad 49 c9 48 41   .....L...,U.I.HA
    0080 - 63 15 3b b8 b8 f7 a1 94-9c 2b b8 a5 70 c8 12 f9   c.;......+..p...
    0090 - f6 49 7f a9 6a 7c 46 60-4e 10 eb 5a 44 cd 43 a4   .I..j|F`N..ZD.C.

    Start Time: 1714061554
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: no
    Max Early Data: 8192
---
read R BLOCK