SSL Checker
Submit the Hostname and Port in the fields below. This checker supports SNI and STARTTLS.
Report
It's all good. We have not detected any issues.
| Hostname: | done Matches Common Name or/and SAN |
| Expired: | done No (34 days till expiration) |
| Public Key: | done We were unable to find any issues in the public key of end-entity certificate |
| Trusted: | done Yes, we were able to verify the certificate |
| Self-Signed: | done No, the end-entity certificate is not self-signed |
| Chain Issues: | done No, we were unable to detect any issues in the certificate chain sent by the server |
| Weak signatures: | done No, certificates sent by the server were not signed utilizing a weak hash function |
| OCSP Status: | done OCSP Responder returned "good" status for the end-entity certificate |
DNS Information
| Resolves To: | 123.30.134.232 |
| Reverse IP lookup: | static.vnpt.vn. |
| Nameserver: | mns01.domaincontrol.com. |
| Nameserver: | mns02.domaincontrol.com. |
General Information
| Common Name: | nctcorp.vn |
| SANs: | DNS:nctcorp.vn Total number of SANs: 1 |
| Signature Algorithm: | sha256WithRSAEncryption |
| Key Type: | ECDSA (secp256r1) |
| Key size: | 256 bits |
| Serial Number: | 434a738c36305d5727017d6b006bbe826dc |
| Not Before: | Mar 01, 2024 00:00:26 GMT |
| Not After: | May 30, 2024 00:00:25 GMT |
| Number of certs: | 2 |
| Revocation Status: | good |
| OCSP Stapling: | Not Supported |
| Server: | openresty |
| HSTS: | max-age=31536000; includeSubDomains |
| HPKP: | Not Supported |
Chain Information
Certificate # 1 - Common Name: nctcorp.vn
Decode this certificate for verbose information → launch| Subject Common Name | nctcorp.vn |
| Issuer Common Name | R3 |
| Issuer Organization | Let's Encrypt |
| Not Before: | Mar 01, 2024 00:00:26 GMT |
| Not After: | May 30, 2024 00:00:25 GMT |
| Signature Algorithm: | sha256WithRSAEncryption |
| Serial Number: | 434a738c36305d5727017d6b006bbe826dc |
| SHA1 Fingerprint: | 09:0D:A5:2B:68:A2:6D:97:C8:F3:1A:41:F8:D0:3A:D6:F4:7C:F1:8F |
| MD5 Fingerprint: | DD:F1:7A:09:18:E2:63:87:79:5C:F5:AC:E3:2E:86:79 |
Certificate # 2 - Common Name: R3
Decode this certificate for verbose information → launch| 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 = nctcorp.vn
verify return:1
CONNECTED(00000003)
OCSP response: no response sent
---
Certificate chain
0 s:CN = nctcorp.vn
i:C = US, O = Let's Encrypt, CN = R3
-----BEGIN CERTIFICATE-----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UgAABAMARzBFAiEAn2dHno1ArxxUAQzp2qykv4RgYZBhJBpc/7fiffXKWOsCIAiv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-----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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yK5GhDDX8oVfGKF5u+decIsH4YaTw7mP3GFxJSqv3+0lUFJoi5Lc5da149p90Ids
hCExroL1+7mryIkXPeFM5TgO9r0rvZaBFOvV2z0gp35Z0+L4WPlbuEjN/lxPFin+
HlUjr8gRsI3qfJOQFy/9rKIJR0Y/8Omwt/8oTWgy1mdeHmmjk7j1nYsvC9JSQ6Zv
MldlTTKB3zhThV1+XWYp6rjd5JW1zbVWEkLNxE7GJThEUG3szgBVGP7pSWTUTsqX
nLRbwHOoq7hHwg==
-----END CERTIFICATE-----
---
Server certificate
subject=CN = nctcorp.vn
issuer=C = US, O = Let's Encrypt, CN = R3
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: ECDSA
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 2834 bytes and written 414 bytes
Verification: OK
---
New, TLSv1.2, Cipher is ECDHE-ECDSA-AES256-GCM-SHA384
Server public key is 256 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : ECDHE-ECDSA-AES256-GCM-SHA384
Session-ID: 6844C5D77287255BF1C33DD38A0A282AE41AFEEFAE6E0AC3004374433E289E6E
Session-ID-ctx:
Master-Key: 73005D14DF8D98F47E20CD6BF9CEA3C7BEA0598E0D7ACA1AD488611E34BBADBBD34830EA127FA784D1B20337980E97DA
PSK identity: None
PSK identity hint: None
SRP username: None
TLS session ticket lifetime hint: 600 (seconds)
TLS session ticket:
0000 - ac da bc ad 3b 41 b5 5b-71 73 c2 7c d9 b8 36 04 ....;A.[qs.|..6.
0010 - cf 1d 62 53 e6 71 2d f5-26 df 98 fa 3d 82 63 df ..bS.q-.&...=.c.
0020 - c7 15 bd 53 d7 a0 60 26-bb cd 0a 2e ed ce bf 7f ...S..`&........
0030 - 7c 86 2a 26 88 d2 ed 25-7a 99 a6 0f bd 34 f1 a6 |.*&...%z....4..
0040 - 0c 1d 9e 82 68 f7 89 d4-9e 20 47 ea 9f 3b c9 62 ....h.... G..;.b
0050 - 1a ca 7e 94 49 e0 08 77-d0 42 ba 51 9d fc a6 18 ..~.I..w.B.Q....
0060 - fc f6 8d ca a3 fe 2f c0-f2 75 60 c9 f1 98 40 e5 ....../..u`...@.
0070 - 68 41 d8 2d 44 03 ff 06-e0 38 08 bc a1 4a e0 db hA.-D....8...J..
0080 - ee af 8b 28 1d 0f 63 bd-ae c9 74 88 fe ef 46 68 ...(..c...t...Fh
0090 - 8b 62 70 cb 78 dd ab 65-e3 cd 46 57 de d6 2a 86 .bp.x..e..FW..*.
00a0 - a1 8a ed ef ff e5 79 f4-22 52 f2 d4 9c ab 14 15 ......y."R......
00b0 - d8 d6 6a 25 dd 6d 86 01-bd d3 b9 e4 72 71 b6 78 ..j%.m......rq.x
Start Time: 1714067871
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: yes
---
DONE