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 (296 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: 103.104.121.138
Reverse IP lookup: static-ptr.vndata.vn.
Nameserver: ns2.pavietnam.vn.
Nameserver: nsbak.pavietnam.net.
Nameserver: ns1.pavietnam.vn.

General Information

Common Name: *.kul.vn
SANs: DNS:*.kul.vnDNS:kul.vn Total number of SANs: 2
Signature Algorithm: sha256WithRSAEncryption
Key Type: RSA
Key size: 2048 bits
Serial Number: 441b3284fcb036afea445c7e4d9af41a
Not Before: Sep 28, 2021 00:00:00 GMT
Not After: Sep 28, 2022 23:59:59 GMT
Number of certs: 3
Revocation Status: good
OCSP Stapling: Not Supported
Server: nginx/1.14.1
HSTS: Not Supported
HPKP: Not Supported

Chain Information

Certificate # 1 - Common Name: *.kul.vn

Decode this certificate for verbose information →
Subject Common Name *.kul.vn
Issuer Common Name Sectigo RSA Domain Validation Secure Server CA
Issuer Organization Sectigo Limited
Not Before: Sep 28, 2021 00:00:00 GMT
Not After: Sep 28, 2022 23:59:59 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 441b3284fcb036afea445c7e4d9af41a
SHA1 Fingerprint: 88:06:48:C3:6D:1F:21:69:AB:96:27:C2:A0:E6:4C:96:80:B9:8A:A2
MD5 Fingerprint: D9:92:87:DA:48:B8:5E:A9:8A:FE:95:F6:41:EB:EF:1B

Certificate # 2 - Common Name: Sectigo RSA Domain Validation Secure Server CA

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name Sectigo RSA Domain Validation Secure Server CA
Subject Organization Sectigo Limited
Issuer Common Name USERTrust RSA Certification Authority
Issuer Organization The USERTRUST Network
Not Before: Nov 02, 2018 00:00:00 GMT
Not After: Dec 31, 2030 23:59:59 GMT
Signature Algorithm: sha384WithRSAEncryption
Serial Number: 7d5b5126b476ba11db74160bbc530da7
SHA1 Fingerprint: 33:E4:E8:08:07:20:4C:2B:61:82:A3:A1:4B:59:1A:CD:25:B5:F0:DB
MD5 Fingerprint: AD:AB:5C:4D:F0:31:FB:92:99:F7:1A:DA:7E:18:F6:13

Certificate # 3 - Common Name: USERTrust RSA Certification Authority

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name USERTrust RSA Certification Authority
Subject Organization The USERTRUST Network
Issuer Common Name AAA Certificate Services
Issuer Organization Comodo CA Limited
Not Before: Mar 12, 2019 00:00:00 GMT
Not After: Dec 31, 2028 23:59:59 GMT
Signature Algorithm: sha384WithRSAEncryption
Serial Number: 3972443af922b751d7d36c10dd313595
SHA1 Fingerprint: D8:9E:3B:D4:3D:5D:90:9B:47:A1:89:77:AA:9D:5C:E3:6C:EE:18:4C
MD5 Fingerprint: 28:5E:C9:09:C4:AB:0D:2D:57:F5:08:6B:22:57:99:AA

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 = GB, ST = Greater Manchester, L = Salford, O = Sectigo Limited, CN = Sectigo RSA Domain Validation Secure Server CA
verify return:1
depth=0 CN = *.kul.vn
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
 0 s:/CN=*.kul.vn
   i:/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
 1 s:/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server 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-----
 2 s:/C=US/ST=New Jersey/L=Jersey City/O=The USERTRUST Network/CN=USERTrust RSA Certification Authority
   i:/C=GB/ST=Greater Manchester/L=Salford/O=Comodo CA Limited/CN=AAA Certificate Services
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
---
Server certificate
subject=/CN=*.kul.vn
issuer=/C=GB/ST=Greater Manchester/L=Salford/O=Sectigo Limited/CN=Sectigo RSA Domain Validation Secure Server CA
---
No client certificate CA names sent
Peer signing digest: SHA512
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 5212 bytes and written 293 bytes
Verification: OK
---
New, TLSv1.2, Cipher is ECDHE-RSA-AES256-GCM-SHA384
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-AES256-GCM-SHA384
    Session-ID: 9DFC6FAEAF26DBF19D485F01BB0BF6D96489FFF01173EDB39E214C1EEDF9ECF1
    Session-ID-ctx: 
    Master-Key: C0F01BB591FF4AE7202DDDA8B5E418B4750535D53ADCA7C94A65ED5FB7C3D7C69AE7E275DC6B897426B5E2246C1B263A
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 300 (seconds)
    TLS session ticket:
    0000 - a3 f7 09 35 bc 1e 99 b6-6b 17 7e 41 16 d4 27 40   ...5....k.~A..'@
    0010 - 13 ce e8 f3 6a 90 14 e5-e6 90 3c b9 20 55 43 c2   ....j.....<. UC.
    0020 - 78 08 6e 27 a9 3b cf fc-4b ca 3b 53 2d 9d 09 69   x.n'.;..K.;S-..i
    0030 - 6a 4b fa 58 a6 cc 23 68-f6 f9 95 08 26 e4 59 2b   jK.X..#h....&.Y+
    0040 - 11 dc 16 09 22 36 48 fd-89 c3 c7 2b e4 04 8a a1   ...."6H....+....
    0050 - 41 de 5f d2 ba 76 9d a3-6f fb 17 6b 64 d6 02 b8   A._..v..o..kd...
    0060 - 51 f8 e7 db 35 db 50 fe-1e 0e 61 8b 3d 69 84 3f   Q...5.P...a.=i.?
    0070 - 41 a3 7d 8e 77 c7 2f 76-85 72 57 32 3d ef dd c7   A.}.w./v.rW2=...
    0080 - 34 34 8e a4 1e 0a f9 ca-ae 7c fc a5 93 a8 d9 72   44.......|.....r
    0090 - 75 fc 84 02 d7 39 50 dd-d7 28 7f dc 41 8e 46 03   u....9P..(..A.F.
    00a0 - 78 a9 b9 18 89 3d 3b 04-4e 0e 75 b2 e1 e2 f1 7c   x....=;.N.u....|
    00b0 - a2 a0 c6 94 8f fc 98 93-25 17 6d ea 13 07 75 19   ........%.m...u.

    Start Time: 1638770159
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: yes
---
DONE