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

gcrespo.com.ar · 200.58.112.31:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
CN=*.gcrespo.com.ar
Issuer
C=US O=Let's Encrypt CN=R10
Valid from
2024-09-11T22:49:32+00:00
Expires
2024-12-10T22:49:31+00:00
Days remaining
-689
Serial (hex)
031133C87ECAB178834EA135832BB0EEA5EA
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.gcrespo.com.ar, DNS:gcrespo.com.ar

SHA-256 fingerprint

74:14:21:4F:D1:BE:11:44:D1:46:5E:DD:F5:5D:17:A2:8B:30:54:2D:45:6C:A8:DF:AF:A0:B3:49:49:A1:36:E6
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
4B:1E:8C:5A:DD:2E:53:9A:F9:65:8E:BF:D4:C6:F8:05:E8:D8:B1:2B
authorityKeyIdentifier
BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityInfoAccess
OCSP - URI:http://r10.o.lencr.org CA Issuers - URI:http://r10.i.lencr.org/
subjectAltName
DNS:*.gcrespo.com.ar, DNS:gcrespo.com.ar
certificatePolicies
Policy: 2.23.140.1.2.1
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB: 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73 Timestamp : Sep 11 23:48:02.169 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DD:88:BF:A5:71:D5:AF:17:56:6C:E4: 1E:1B:66:FD:76:7B:AD:C7:AC:42:1A:02:56:4A:3C:0E: CE:42:F7:6F:BB:02:20:22:75:C4:E1:A2:D4:E1:74:22: 78:0D:93:34:A2:06:55:45:96:9B:44:98:F0:D1:60:6B: C4:24:5F:09:71:E0:04 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : DF:E1:56:EB:AA:05:AF:B5:9C:0F:86:71:8D:A8:C0:32: 4E:AE:56:D9:6E:A7:F5:A5:6A:01:D1:C1:3B:BE:52:5C Timestamp : Sep 11 23:48:02.370 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:9E:4A:7B:D5:03:12:F3:03:97:9A:92: CF:42:3B:EE:75:E6:0A:78:29:07:3B:6A:FF:F0:77:17: A8:20:FF:FA:61:02:21:00:9C:BF:01:3E:E9:83:8D:64: EF:1E:F9:0C:CB:E3:6F:EB:80:E6:05:DF:39:AB:1D:FD: E8:23:E9:07:CC:BB:AA:B9
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-30T20:48:08+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=R10
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2024-03-13T00:00:00+00:00
Expires
2027-03-12T23:59:59+00:00
Days remaining
133
Serial (hex)
4BA85293F79A2FA273064BA8048D75D0
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

9D:7C:3F:1A:A6:AD:2B:2E:C0:D5:CF:1E:24:6F:8D:9A:E6:CB:C9:FD:07:55:AD:37:BB:97:4B:1F:2F:B6:03:F3
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Client Authentication, TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
BB:BC:C3:47:A5:E4:BC:A9:C6:C3:A4:72:0C:10:8D:A2:35:E1:C8:E8
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----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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