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

knowles.com · 107.154.146.48:443

Verified

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

Subject
CN=knowles.com
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Atlas R46 DV TLS CA 2026 Q3
Valid from
2026-09-12T17:01:15+00:00
Expires
2026-12-11T17:01:15+00:00
Days remaining
69
Serial (hex)
01DC4D444D8CBF92DC8BDF0841A356FB
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:knowles.com, DNS:www.knowles.com, DNS:cms223.knowles.com

SHA-256 fingerprint

8A:D2:2D:94:4C:15:B1:E0:39:75:CD:DE:A4:BD:C7:FD:91:65:D0:27:F8:24:90:CF:93:FA:E4:22:5F:11:6D:CE
Certificate extensions & PEM
subjectAltName
DNS:knowles.com, DNS:www.knowles.com, DNS:cms223.knowles.com
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
subjectKeyIdentifier
02:8E:A1:25:71:8B:D5:8A:FE:E3:6E:D9:10:52:E4:66:1A:97:89:4F
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3 CPS: https://www.globalsign.com/repository/
basicConstraints
CA:FALSE
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/ca/gsatlasr46dvtlsca2026q3 CA Issuers - URI:http://secure.globalsign.com/cacert/gsatlasr46dvtlsca2026q3.crt
authorityKeyIdentifier
DC:52:7D:D4:10:17:BE:E5:FB:01:44:B0:FB:19:CA:C7:EE:D0:28:EB
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/ca/gsatlasr46dvtlsca2026q3.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Sep 12 17:01:17.438 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:23:1D:D2:AC:E7:C0:0E:C1:D3:FA:87:CD: E4:BA:0B:A4:EA:E0:BA:08:B8:81:DB:9F:AC:E2:4C:36: C0:85:17:0E:02:21:00:F8:17:73:3A:2E:A0:CF:BB:FE: 33:B0:C3:9B:50:48:BB:90:13:24:45:57:93:5E:99:76: 98:79:9E:6F:92:3C:D0 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB: B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14 Timestamp : Sep 12 17:01:17.445 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:10:11:95:05:8D:B7:8C:53:6D:12:22:58: AB:D3:23:D0:ED:2F:D8:E5:13:F1:C1:0A:E7:68:55:44: CB:F3:C5:12:02:21:00:C2:B0:70:9A:8C:7D:2D:F0:A1: 07:24:E6:96:D6:F5:F3:8F:1C:BE:5C:9E:14:6B:E1:7F: 5B:D9:21:C3:73:5C:9D
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-03T15:06:16+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign Atlas R46 DV TLS CA 2026 Q3
Issuer
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Valid from
2026-04-22T03:00:05+00:00
Expires
2028-04-22T00:00:00+00:00
Days remaining
566
Serial (hex)
85AC708351E68DF704248BFDF17E4272
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

99:AE:C9:2E:EA:8F:B5:36:F7:4D:FB:FB:82:44:E4:C8:F5:AC:3B:65:8F:7A:98:86:19:79:7A:4D:04:AC:10:36
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
DC:52:7D:D4:10:17:BE:E5:FB:01:44:B0:FB:19:CA:C7:EE:D0:28:EB
authorityKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
authorityInfoAccess
OCSP - URI:http://ocsp.globalsign.com/rootr46 CA Issuers - URI:http://secure.globalsign.com/cacert/rootr46.crt
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/rootr46.crl
certificatePolicies
Policy: 2.23.140.1.2.1 Policy: 1.3.6.1.4.1.4146.10.1.3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=BE O=GlobalSign nv-sa CN=GlobalSign Root R46
Issuer
OU=GlobalSign Root CA - R3 O=GlobalSign CN=GlobalSign
Valid from
2019-11-20T00:00:00+00:00
Expires
2029-03-18T00:00:00+00:00
Days remaining
896
Serial (hex)
75A8BAD878F8AF305F72DD1C1140DF3A
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

A6:3C:13:98:B5:F8:DD:2D:43:2F:BE:4C:2C:19:14:2B:EA:6D:5D:02:21:FA:E7:94:71:8A:E7:59:7A:CC:A9:6D
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
subjectKeyIdentifier
03:5C:AB:73:81:87:A8:CC:B0:A6:D5:94:E2:36:96:49:FF:05:99:2C
authorityKeyIdentifier
8F:F0:4B:7F:A8:2E:45:24:AE:4D:50:FA:63:9A:8B:DE:E2:DD:1B:BC
authorityInfoAccess
OCSP - URI:http://ocsp2.globalsign.com/rootr3
crlDistributionPoints
Full Name: URI:http://crl.globalsign.com/root-r3.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.globalsign.com/repository/
-----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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