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

bb.org.bd · 103.142.142.53:443

Verified

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

Subject
C=BD L=Dhaka O=BANGLADESH BANK CN=*.bb.org.bd
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-09-28T00:00:00+00:00
Expires
2027-04-14T23:59:59+00:00
Days remaining
184
Serial (hex)
052AB51A411B098BD9192AF3B797BF80
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.bb.org.bd, DNS:www.bb.org.bd, DNS:bb.org.bd

SHA-256 fingerprint

BF:FE:43:FF:AA:9A:61:B5:C3:93:00:CF:0C:88:4E:EE:45:CD:64:E1:83:A8:2D:D0:35:E0:D7:67:44:27:02:1C
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
41:84:59:E6:81:8F:ED:28:EA:BD:F3:9B:31:8D:E5:9F:46:B6:A9:60
subjectAltName
DNS:*.bb.org.bd, DNS:www.bb.org.bd, DNS:bb.org.bd
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
crlDistributionPoints
Full Name: URI:http://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.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 28 10:23:54.419 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:46:99:FA:10:90:EE:2B:71:F8:5E:56:0E: DF:06:B9:1E:C9:20:4D:64:FF:2B:9A:31:59:09:8D:C8: 5E:47:4A:B1:02:21:00:D3:53:72:4D:A2:B8:28:15:D6: 36:6D:5D:E9:E0:26:BD:41:7E:05:92:C2:74:D7:BA:C1: 3F:40:A6:2C:4C:E6:54 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 28 10:23:54.465 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:87:BA:05:07:1F:B0:6D:24:66:0F:59: A6:B7:BD:59:8A:6B:C0:5B:33:8E:68:8E:D1:EC:46:1C: 5A:69:1C:BD:E8:02:21:00:B4:C3:26:53:2F:AF:77:10: D6:8C:CE:15:0F:FA:F2:63:5E:10:B1:4B:A4:CE:1E:38: 92:D8:94:4A:A1:0E:2A:2A 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 28 10:23:54.484 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:88:E4:50:90:A3:75:55:51:34:68:46: 63:10:D0:EB:FE:CE:DF:EE:49:2E:AD:9F:C0:FE:74:3B: 82:98:CF:06:C3:02:21:00:8B:1C:45:5B:2F:01:55:80: 98:E1:1C:8F:FB:1E:97:F6:94:82:F8:80:3E:AB:09:14: 78:1C:0E:DE:44:1F:F5:8A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-12T00:35:00+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
386
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
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: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4113
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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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