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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

alastyr.com · 5.2.80.35:443

Verified

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

Subject
CN=*.alastyr.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2026-09-25T00:00:00+00:00
Expires
2027-04-11T23:59:59+00:00
Days remaining
196
Serial (hex)
0C81E6C11AD292A5F4A9CF6FEF2DC708
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.alastyr.com, DNS:alastyr.com

SHA-256 fingerprint

10:7B:01:F9:D9:81:57:46:15:C9:42:0B:73:76:34:C7:79:51:DD:3F:9E:DC:8C:56:C4:C4:F9:DC:6D:6A:63:1D
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
9E:33:E3:09:6C:69:4A:5A:E8:22:50:F5:E8:46:F7:66:03:8A:9F:5E
subjectAltName
DNS:*.alastyr.com, DNS:alastyr.com
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
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 : Sep 25 21:49:07.266 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C0:B3:58:A4:3C:E8:43:E4:3C:F5:E4: 76:1C:68:83:9C:04:A4:FD:CB:CE:D6:E5:CE:B1:2A:D5: 9F:2F:06:1B:A9:02:20:19:03:9E:4A:83:48:D2:F9:39: B5:70:2B:66:6A:76:C8:61:5D:6B:61:C4:56:E6:C3:6D: DD:68:34:DF:CC:41:00 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 25 21:49:07.268 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:8E:D7:06:39:4A:97:C6:32:EE:F4:B6: 7B:27:11:FE:9B:97:56:5C:FE:A3:E1:99:F6:06:09:DA: 19:D1:56:8D:82:02:20:33:4F:71:D9:49:E7:F3:10:85: 79:0F:64:D2:58:FA:A2:2B:23:78:D0:9A:84:F4:D4:87: 46:81:86:EF:48:51:CD Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Sep 25 21:49:07.331 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:03:68:F8:70:6C:47:4C:A6:A2:28:7F:E2: 2D:1F:25:A8:BA:13:D2:DA:31:9A:96:51:03:EB:60:55: F7:BF:4E:3A:02:21:00:BD:43:0F:C0:D1:65:1B:B4:6F: 47:F6:84:8A:63:A1:C7:18:57:92:CC:87:B2:45:D2:FB: 51:A1:48:3C:31:A5:09
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-27T20:22:38+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
400
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----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.

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