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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

acer.org · 3.104.130.188:443

Verified

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

Subject
CN=*.acer.org
Issuer
C=US O=Amazon CN=Amazon RSA 2048 M01
Valid from
2026-08-17T00:00:00+00:00
Expires
2027-03-02T23:59:59+00:00
Days remaining
160
Serial (hex)
0F09A99E66A487B7B858E314E8ADBDD3
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.acer.org, DNS:acer.org, DNS:malaysia.msat.acer.org, DNS:selectiveentry.acer.org

SHA-256 fingerprint

71:AA:71:94:97:28:7C:4A:A4:22:4D:6A:A2:0A:59:AF:AD:5A:D3:95:DB:F8:8D:2B:24:BA:77:19:D7:88:8F:FC
Certificate extensions & PEM
authorityKeyIdentifier
81:B8:0E:63:8A:89:12:18:E5:FA:3B:3B:50:95:9F:E6:E5:90:13:85
subjectKeyIdentifier
A0:66:45:BD:54:A2:94:EC:6C:DC:66:FF:F3:60:B1:5F:FB:40:D5:66
subjectAltName
DNS:*.acer.org, DNS:acer.org, DNS:malaysia.msat.acer.org, DNS:selectiveentry.acer.org
certificatePolicies
Policy: 2.23.140.1.2.1
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.r2m01.amazontrust.com/r2m01.crl
authorityInfoAccess
OCSP - URI:http://ocsp.r2m01.amazontrust.com CA Issuers - URI:http://crt.r2m01.amazontrust.com/r2m01.cer
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 : Aug 17 00:10:02.628 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:FB:FF:9E:14:F9:78:76:4D:3A:37:8D: 0A:86:F0:4D:77:C3:10:0B:09:57:9E:45:E3:E5:12:AB: 6C:69:91:38:36:02:20:5D:E5:82:B4:97:70:1B:C2:7B: B6:F0:88:C8:A8:18:69:84:39:4A:FF:E5:10:45:D7:CF: FE:09:06:F0:6B:41:CA 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 : Aug 17 00:10:02.626 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4A:6A:6E:0A:48:86:BE:95:C5:D4:25:07: BF:30:FE:1C:32:72:AE:AE:78:A5:03:FE:F1:35:10:6E: FE:C8:47:CC:02:21:00:CA:AC:DA:04:16:91:62:58:38: 76:9C:D3:95:9A:92:79:67:EF:8A:5B:DB:6C:C6:6D:51: DE:59:5A:44:C9:0C:A4 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 : Aug 17 00:10:02.703 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:56:68:22:1B:0B:F5:7F:2F:30:AB:05:44: 77:E4:BD:57:75:89:9A:2A:8D:2F:E1:F6:B4:FF:21:7E: 1F:37:51:34:02:20:38:53:6B:1F:64:29:56:41:35:2A: 7A:6B:41:75:37:A0:B0:F5:1F:EB:94:1E:BF:F2:FC:A6: B2:92:79:8F:00:75
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T11:24:01+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Amazon CN=Amazon RSA 2048 M01
Issuer
C=US O=Amazon CN=Amazon Root CA 1
Valid from
2022-08-23T22:21:28+00:00
Expires
2030-08-23T22:21:28+00:00
Days remaining
1430
Serial (hex)
077312380B9D6688A33B1ED9BF9CCDA68E0E0F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

53:38:EB:EC:8F:B2:AC:60:99:61:26:D3:E7:6A:A3:4F:D0:F3:31:8A:C7:8E:BB:7A:C8:F6:F1:36:1F:48:4B:33
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectKeyIdentifier
81:B8:0E:63:8A:89:12:18:E5:FA:3B:3B:50:95:9F:E6:E5:90:13:85
authorityKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityInfoAccess
OCSP - URI:http://ocsp.rootca1.amazontrust.com CA Issuers - URI:http://crt.rootca1.amazontrust.com/rootca1.cer
crlDistributionPoints
Full Name: URI:http://crl.rootca1.amazontrust.com/rootca1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Amazon CN=Amazon Root CA 1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Services Root Certificate Authority - G2
Valid from
2015-05-25T12:00:00+00:00
Expires
2037-12-31T01:00:00+00:00
Days remaining
4116
Serial (hex)
067F944A2A27CDF3FAC2AE2B01F908EEB9C4C6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:DC:D4:DC:74:64:0A:32:2C:D2:05:55:25:06:D1:BE:64:F1:25:96:25:80:96:54:49:86:B4:85:0B:C7:27:06
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityKeyIdentifier
9C:5F:00:DF:AA:01:D7:30:2B:38:88:A2:B8:6D:4A:9C:F2:11:91:83
authorityInfoAccess
OCSP - URI:http://ocsp.rootg2.amazontrust.com CA Issuers - URI:http://crt.rootg2.amazontrust.com/rootg2.cer
crlDistributionPoints
Full Name: URI:http://crl.rootg2.amazontrust.com/rootg2.crl
certificatePolicies
Policy: X509v3 Any Policy
-----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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