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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

puredomain.com · 81.28.228.80:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=puredomain.com
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-11-04T02:51:18+00:00
Expires
2027-02-02T02:51:17+00:00
Days remaining
82
Serial (hex)
0635DD7DA2371DAFF080C6F89F7B44BF0F8F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:puredomain.com, DNS:www.puredomain.com

SHA-256 fingerprint

58:C7:E9:41:34:7B:68:8A:5E:CC:FB:38:64:BF:06:13:86:6F:5B:7D:04:D1:FD:C3:2C:8A:2B:75:D4:98:E8:AB
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
A0:0D:E6:93:32:E2:20:E8:6B:D1:40:64:D2:E4:49:64:D5:96:20:2D
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:puredomain.com, DNS:www.puredomain.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/16.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Nov 4 03:49:48.259 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6B:C0:36:58:BC:76:E6:6A:52:68:78:9B: 2E:CE:09:25:17:3C:FC:AE:43:49:10:7B:4F:63:A5:21: 83:EC:27:DB:02:21:00:DC:0D:8A:D0:26:D7:2D:56:C7: 96:B8:87:19:EF:D1:55:AC:67:EE:69:35:ED:99:26:6C: F7:A1:11:4E:02:72:ED Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA: 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D Timestamp : Nov 4 03:49:48.750 2026 GMT Extensions: 00:00:05:00:37:2A:40:09 Signature : ecdsa-with-SHA256 30:45:02:21:00:9F:F7:D8:82:E8:A0:7A:D7:7B:B5:DA: 3B:06:B4:51:85:BD:02:39:8A:FE:8D:2E:9F:A3:63:E7: 7C:21:93:68:CF:02:20:49:BC:CE:3B:28:D7:8B:DB:69: 08:53:22:AD:46:C7:C3:02:6F:C6:BB:4D:55:D0:D9:E2: 13:73:77:51:63:8C:7F
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-11T15:43:07+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
661
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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==
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2122
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
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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