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

dfordomains.com · 103.149.199.114:443

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=dom.snaidu.com
Issuer
C=US O=Let's Encrypt CN=R13
Valid from
2026-03-16T10:22:48+00:00
Expires
2026-06-14T10:22:47+00:00
Days remaining
-100
Serial (hex)
06DD7306B90F4E801523A199BE1194645820
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:dfordomains.com, DNS:dom.snaidu.com, DNS:www.dfordomains.com

SHA-256 fingerprint

C3:0A:59:3A:E3:CA:E8:4E:49:F1:F2:2D:E5:E2:DB:52:67:EF:54:E5:EA:A9:47:8F:F5:F2:6C:DB:05:09:E4:C0
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
B0:F8:16:F2:99:BA:F2:53:0A:26:5C:E1:11:80:9D:CC:EA:87:BC:4F
authorityKeyIdentifier
E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
authorityInfoAccess
CA Issuers - URI:http://r13.i.lencr.org/
subjectAltName
DNS:dfordomains.com, DNS:dom.snaidu.com, DNS:www.dfordomains.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://r13.c.lencr.org/33.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 64:11:C4:6C:A4:12:EC:A7:89:1C:A2:02:2E:00:BC:AB: 4F:28:07:D4:1E:35:27:AB:EA:FE:D5:03:C9:7D:CD:F0 Timestamp : Mar 16 11:21:18.187 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:51:18:35:17:72:CA:EA:EC:DA:08:3C:A0: 70:BF:1F:EF:D7:20:B6:36:0A:2A:24:03:8F:02:D2:4B: DE:E9:49:6F:02:21:00:CB:34:2C:8C:28:49:39:00:4B: F2:45:79:35:18:6F:EA:28:FD:40:29:8F:71:E8:45:D0: A5:02:85:EA:F8:05:93 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : E3:23:8D:F2:8D:A2:88:E0:AA:E0:AC:F0:FA:90:C9:85: F0:B6:BF:F5:D2:A5:27:B0:01:FC:1C:44:58:C4:B6:E8 Timestamp : Mar 16 11:21:18.523 2026 GMT Extensions: 00:00:05:00:35:BC:CD:EC Signature : ecdsa-with-SHA256 30:45:02:20:55:EF:52:58:33:B6:15:A7:8E:C7:47:B6: 9A:AD:EC:07:BE:0B:3C:DF:98:69:BD:BF:74:FC:EC:27: FB:4A:6A:2F:02:21:00:C8:CF:8C:9E:78:6C:79:9A:B0: 45:F1:FF:CA:B5:7D:7E:17:1B:C6:A4:58:BA:45:8C:04: E7:27:63:06:EB:B8:91
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-22T09:17:01+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=R13
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
171
Serial (hex)
5A00F212D8D4B480F3924157EA298305
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

D3:B1:28:21:6A:84:3F:8E:F1:32:15:01:F5:DF:52:A5:DF:52:93:9E:E2:C1:92:97:71:2C:D3:DE:4D:41:93:54
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
E7:AB:9F:0F:2C:33:A0:53:D3:5E:4F:78:C8:B2:84:0E:3B:D6:92:33
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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