Namecheap.com

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 (89 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: The order of certificates is invalid or certificates cannot build certification path
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: 103.27.62.248
Reverse IP lookup: No records found
Nameserver: sid.ns.cloudflare.com.
Nameserver: ines.ns.cloudflare.com.

General Information

Common Name: mail.sieutoc.com
SANs: DNS:mail.sieutoc.com Total number of SANs: 1
Signature Algorithm: sha384WithRSAEncryption
Key Type: RSA
Key size: 2048 bits
Serial Number: 51b41bb2652e40b620e1b3bcab202930
Not Before: Feb 12, 2025 00:00:00 GMT
Not After: May 13, 2025 23:59:59 GMT
Number of certs: 3
Revocation Status: good
OCSP Stapling: Not Supported
Server: nginx
HSTS: Not Supported
HPKP: Not Supported

Chain Information

Certificate # 1 - Common Name: mail.sieutoc.com

Decode this certificate for verbose information →
Subject Common Name mail.sieutoc.com
Issuer Common Name ZeroSSL RSA Domain Secure Site CA
Issuer Organization ZeroSSL
Not Before: Feb 12, 2025 00:00:00 GMT
Not After: May 13, 2025 23:59:59 GMT
Signature Algorithm: sha384WithRSAEncryption
Serial Number: 51b41bb2652e40b620e1b3bcab202930
SHA1 Fingerprint: 69:F5:20:AE:35:E7:62:30:39:10:A1:82:72:66:62:17:9D:6D:A4:30
MD5 Fingerprint: 11:DC:2F:C3:9F:01:FF:96:D5:1B:BC:DD:50:89:6A:6A

Certificate # 2 - Common Name: USERTrust RSA Certification Authority

Decode this certificate for verbose information →
In place? No, this certificate does not directly certify the preceding one
Subject Common Name USERTrust RSA Certification Authority
Subject Organization The USERTRUST Network
Issuer Common Name USERTrust RSA Certification Authority
Issuer Organization The USERTRUST Network
Not Before: Feb 01, 2010 00:00:00 GMT
Not After: Jan 18, 2038 23:59:59 GMT
Signature Algorithm: sha384WithRSAEncryption
Serial Number: 1fd6d30fca3ca51a81bbc640e35032d
SHA1 Fingerprint: 2B:8F:1B:57:33:0D:BB:A2:D0:7A:6C:51:F7:0E:E9:0D:DA:B9:AD:8E
MD5 Fingerprint: 1B:FE:69:D1:91:B7:19:33:A3:72:A8:0F:E1:55:E5:B5

Certificate # 3 - Common Name: ZeroSSL RSA Domain Secure Site CA

Decode this certificate for verbose information →
In place? No, this certificate does not directly certify the preceding one
Subject Common Name ZeroSSL RSA Domain Secure Site CA
Subject Organization ZeroSSL
Issuer Common Name USERTrust RSA Certification Authority
Issuer Organization The USERTRUST Network
Not Before: Jan 30, 2020 00:00:00 GMT
Not After: Jan 29, 2030 23:59:59 GMT
Signature Algorithm: sha384WithRSAEncryption
Serial Number: 6c55abdbd00792c79d070cd8119ed6bf
SHA1 Fingerprint: C8:1A:8B:D1:F9:CF:6D:84:C5:25:F3:78:CA:1D:3F:8C:30:77:0E:34
MD5 Fingerprint: 58:AA:23:10:7C:8D:5A:ED:EA:BD:0D:5E:32:57:85:92

OpenSSL Handshake

depth=2 C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority
verify return:1
depth=1 C = AT, O = ZeroSSL, CN = ZeroSSL RSA Domain Secure Site CA
verify return:1
depth=0 CN = mail.sieutoc.com
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
 0 s:CN = mail.sieutoc.com
   i:C = AT, O = ZeroSSL, CN = ZeroSSL RSA Domain Secure Site CA
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
 1 s:C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority
   i:C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
 2 s:C = AT, O = ZeroSSL, CN = ZeroSSL RSA Domain Secure Site CA
   i:C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
---
Server certificate
subject=CN = mail.sieutoc.com

issuer=C = AT, O = ZeroSSL, CN = ZeroSSL RSA Domain Secure Site CA

---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: ECDH, P-256, 256 bits
---
SSL handshake has read 5626 bytes and written 453 bytes
Verification: OK
---
New, TLSv1.2, Cipher is ECDHE-RSA-AES128-GCM-SHA256
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES128-GCM-SHA256
    Session-ID: F919B8A85EF6A1F0C21985F5522146DDD67A1B53D230E75185F3D2526C4CA8BE
    Session-ID-ctx: 
    Master-Key: 6561408EA250C142A2F15B473B4DB6BC5A22B2E7BFFCA1976C8E194073559E5921D05EA26F57CB11DDB4AD4F09B2E6D2
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 600 (seconds)
    TLS session ticket:
    0000 - 83 90 28 81 b3 fa c4 72-00 69 2c 5d 88 81 f0 67   ..(....r.i,]...g
    0010 - d2 ec cf 20 bd 21 f8 78-9e 52 ad b7 62 88 0d 93   ... .!.x.R..b...
    0020 - 56 45 9b a5 e1 bc ff 57-86 1d 2a 41 4f 73 08 57   VE.....W..*AOs.W
    0030 - f5 77 25 ee 69 f4 e0 3c-16 2b 45 28 f3 3e 0b a9   .w%.i..<.+E(.>..
    0040 - 71 b6 15 a6 59 81 6c e3-dd cc 2e 61 54 8f 7f 83   q...Y.l....aT...
    0050 - 67 98 ce 41 56 60 4f 4f-21 50 d3 e4 d5 1c f1 01   g..AV`OO!P......
    0060 - 6b 7d fc 2c 22 32 49 56-a8 60 3f df 58 1b 67 c3   k}.,"2IV.`?.X.g.
    0070 - 97 b2 3f 40 28 3e 69 24-0e 38 97 e9 c3 4e be 56   ..?@(>i$.8...N.V
    0080 - 97 7e c9 6f 13 ca bf e0-c8 54 53 08 38 91 c5 85   .~.o.....TS.8...
    0090 - 33 ab 06 d2 11 09 03 52-54 2b 96 ac bb ec 14 56   3......RT+.....V
    00a0 - e0 cf 12 67 e8 80 62 99-4c 3d e5 41 db 7d 1d 9a   ...g..b.L=.A.}..
    00b0 - ab 79 21 a8 58 ee f5 87-62 4a 80 b9 c7 44 cf 12   .y!.X...bJ...D..
    00c0 - ab ff e1 45 09 3c e8 d3-ca 54 ac 3a 65 a0 8a b9   ...E.<...T.:e...

    Start Time: 1739440363
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: yes
---
DONE