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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

squarespace.com · 198.49.23.181:443

Verified

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

Subject
C=US ST=New York L=New York O=Squarespace, Inc. CN=*.squarespace.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-02-10T00:00:00+00:00
Expires
2027-03-03T23:59:59+00:00
Days remaining
164
Serial (hex)
0EF444771207F0A7402C48A640F83128
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:*.squarespace.com, DNS:squarespace.com, DNS:*.campaign-preferences.com, DNS:campaign-preferences.com, DNS:*.sqsp.net, DNS:sqsp.net, DNS:*.sqspcdn.com, DNS:static1.1.sqspcdn.com, DNS:static2.1.sqspcdn.com, DNS:static1.2.sqspcdn.com, DNS:cdn1.1.sqspcdn.com, DNS:sqspcdn.com, DNS:*.engage.squarespace-mail.com, DNS:engage.squarespace-mail.com

SHA-256 fingerprint

0E:C2:D4:8A:A8:10:93:72:93:13:ED:7F:AE:ED:D5:4F:80:46:1C:07:6C:86:11:FC:8D:21:1C:86:72:55:E7:CE
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
DD:87:14:A1:2D:B2:D1:B6:84:25:E2:82:11:00:2F:B0:9B:82:F5:32
subjectAltName
DNS:*.squarespace.com, DNS:squarespace.com, DNS:*.campaign-preferences.com, DNS:campaign-preferences.com, DNS:*.sqsp.net, DNS:sqsp.net, DNS:*.sqspcdn.com, DNS:static1.1.sqspcdn.com, DNS:static2.1.sqspcdn.com, DNS:static1.2.sqspcdn.com, DNS:cdn1.1.sqspcdn.com, DNS:sqspcdn.com, DNS:*.engage.squarespace-mail.com, DNS:engage.squarespace-mail.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 : 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 : Feb 10 22:22:00.413 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:E2:36:04:B7:37:2E:2A:AB:45:5C:B1: 39:BF:9F:F0:E7:A6:99:AE:BB:45:CC:BD:CA:83:C4:6E: A5:EB:DF:61:AB:02:20:26:15:64:C3:68:1D:FE:5C:71: F7:CF:92:4E:43:21:AE:E8:1B:94:20:BD:D8:B1:3E:63: E9:59:09:90:D9:31:F8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Feb 10 22:22:00.329 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:AE:7F:ED:5A:65:17:D7:4B:50:E9:6E: 00:9F:CB:A5:46:F5:B2:B8:22:4F:24:DF:A1:21:C7:0E: 3C:0A:CB:9E:4E:02:21:00:B0:1E:04:FE:54:ED:EC:C1: 21:28:F9:B4:58:D0:46:DC:14:22:14:15:69:79:F5:09: AA:41:51:6F:5F:90:11:C1 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Feb 10 22:22:00.469 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:62:92:B8:2E:29:41:87:71:FF:3C:87:2B: D5:50:2A:48:58:4D:9E:49:FC:E4:C9:0A:BF:CA:84:6C: 36:D2:59:AB:02:20:33:9A:3A:02:8D:FB:89:33:7F:66: 79:18:8A:B7:EE:62:92:12:25:49:99:B7:B1:D9:C4:28: 56:73:49:D0:69:15
-----BEGIN CERTIFICATE-----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MS5zcXNwY2RuLmNvbYILc3FzcGNkbi5jb22CHSouZW5nYWdlLnNxdWFyZXNwYWNl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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-20T07:19:21+00:00

Server-presented chain · 1 additional certificate

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
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1651
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
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
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
certificatePolicies
Policy: 2.16.840.1.114412.2.1 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-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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