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

textnow.com · 104.18.21.59:443

Verified

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

Subject
C=CA ST=Ontario L=Waterloo O=Textnow, Inc. CN=*.textnow.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-06-03T00:00:00+00:00
Expires
2026-12-18T23:59:59+00:00
Days remaining
49
Serial (hex)
09CFDB98DD671FD1855AD153EE1A3672
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.textnow.com, DNS:textnow.com

SHA-256 fingerprint

14:22:F2:96:79:EE:99:6E:C2:E7:39:37:6A:E1:F2:69:F9:89:3A:48:D7:3A:97:D3:13:52:5F:9A:54:23:27:98
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
D2:28:AB:0F:D4:12:09:9B:2F:14:7C:71:3A:0E:25:86:4D:96:F5:71
subjectAltName
DNS:*.textnow.com, DNS:textnow.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Jun 3 17:10:55.519 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:F5:24:BE:12:5C:DC:F6:E4:1C:29:48: C5:F5:E8:C3:7F:A2:3B:DE:4B:14:B6:80:21:B8:DB:0E: AD:D6:E7:32:EE:02:21:00:92:19:6B:AE:6B:53:29:25: 6D:25:F4:1A:CB:49:EC:78:D3:AD:20:30:0A:87:65:E1: 2C:A1:83:76:43:9D:36:2D Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Jun 3 17:10:55.492 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:E4:03:79:17:BD:60:37:EA:EB:10:B3: 84:86:72:18:3F:32:34:B9:0D:48:0F:A3:3D:D0:58:27: E0:95:48:76:25:02:21:00:F7:42:74:94:00:62:7E:DA: 23:B8:7D:05:8B:36:09:1B:23:6A:9A:05:17:4A:56:8B: 15:BF:CA:83:0E:7F:40:EA Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65: 01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8 Timestamp : Jun 3 17:10:55.528 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FC:A9:EA:D5:1C:51:4A:B3:75:26:D7: D1:02:DF:A1:9A:80:6C:B1:0B:57:81:88:B3:B8:EF:04: DB:7F:17:92:13:02:21:00:8C:01:E8:3B:17:E3:75:B6: 8B:2D:36:10:37:1C:C9:8B:84:FB:F8:C9:0B:F7:0E:92: C2:3A:4C:B7:7C:CC:F9:10
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-30T17:47:57+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2020-09-24T00:00:00+00:00
Expires
2030-09-23T23:59:59+00:00
Days remaining
1424
Serial (hex)
085F94C02D857BE8CC14FF53EDA23E2A
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

1F:8E:B9:E9:A8:E0:66:CC:5B:38:33:E0:6B:31:29:76:4B:62:26:39:D5:B1:63:F6:00:E1:C7:91:20:BF:3E:ED
Certificate extensions & PEM
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
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 CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----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 CA
Valid from
2024-01-18T00:00:00+00:00
Expires
2031-11-09T23:59:59+00:00
Days remaining
1836
Serial (hex)
0FE032AB844D033106C50C8E13C8B068
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

79:D5:7B:15:DF:A6:5C:28:70:EA:FE:11:B6:37:76:59:09:CF:E9:37:B4:9C:15:CE:7F:19:40:30:CA:B3:95:AD
Certificate extensions & PEM
basicConstraints
CA:TRUE
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
authorityKeyIdentifier
03:DE:50:35:56:D1:4C:BB:66:F0:A3:E2:1B:1B:C3:97:B2:3D:D1:55
keyUsage
Digital Signature, Certificate Sign, CRL Sign
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.cn CA Issuers - URI:http://cacerts.digicert.cn/DigiCertGlobalRootCA.crt
crlDistributionPoints
Full Name: URI:http://crl.digicert.cn/DigiCertGlobalRootCA.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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