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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

yahoo.com · 74.6.231.21:443

Verified
The certificate expires within 30 days.

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

Subject
C=US ST=New York L=New York O=Yahoo Holdings Inc. CN=yahoo.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-07-28T00:00:00+00:00
Expires
2026-10-21T23:59:59+00:00
Days remaining
28
Serial (hex)
03502272496C3C730CF6A81CD6FFB267
Signature
RSA-SHA256
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:yahoo.com, DNS:tw.rd.yahoo.com, DNS:s.yimg.com, DNS:mbp.yimg.com, DNS:hk.rd.yahoo.com, DNS:fr-ca.rogers.yahoo.com, DNS:ddl.fp.yahoo.com, DNS:ca.rogers.yahoo.com, DNS:ca.my.yahoo.com, DNS:brb.yahoo.net, DNS:add.my.yahoo.com, DNS:*.yahoo.com, DNS:*.www.yahoo.com, DNS:*.media.yahoo.com, DNS:*.att.yahoo.com, DNS:*.amp.yimg.com

SHA-256 fingerprint

F9:6D:53:1B:71:86:85:4C:57:BF:39:C3:9B:0E:23:86:57:4B:7E:65:5F:12:53:3F:E3:F3:3E:D4:46:FA:D1:7B
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
CB:F3:55:C7:4C:3B:3D:0E:90:FF:E2:D6:F9:08:7B:69:74:84:28:E3
subjectAltName
DNS:yahoo.com, DNS:tw.rd.yahoo.com, DNS:s.yimg.com, DNS:mbp.yimg.com, DNS:hk.rd.yahoo.com, DNS:fr-ca.rogers.yahoo.com, DNS:ddl.fp.yahoo.com, DNS:ca.rogers.yahoo.com, DNS:ca.my.yahoo.com, DNS:brb.yahoo.net, DNS:add.my.yahoo.com, DNS:*.yahoo.com, DNS:*.www.yahoo.com, DNS:*.media.yahoo.com, DNS:*.att.yahoo.com, DNS:*.amp.yimg.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Agreement
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 : Jul 28 00:18:47.932 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7A:06:ED:FF:6A:23:C0:20:6A:A9:54:51: EB:3E:80:5E:DA:4B:5C:C3:37:E1:52:9C:78:77:AC:1B: 40:FC:23:EE:02:20:72:75:BD:60:91:EE:1A:35:4E:8A: 74:8A:A5:19:7E:30:3C:50:5F:A3:A2:04:89:EE:2F:FD: AE:6B:BE:E2:4E:FC 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 : Jul 28 00:18:47.892 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6D:E2:0C:56:2F:5E:0D:8E:D7:78:73:88: D1:2A:C8:84:F4:A8:E4:9F:0C:37:17:2E:24:1A:AF:14: 96:73:82:B7:02:21:00:B2:0B:50:FF:28:C0:7B:FE:AD: AA:6D:27:83:13:5B:79:44:D5:94:27:9A:5F:A0:40:7E: F7:6E:A8:55:ED:36:4D 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 : Jul 28 00:18:47.973 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C8:98:56:88:A4:6C:3A:9F:EE:C7:1B: D3:A7:78:C5:51:99:47:51:5A:11:29:5D:74:1B:51:3B: 1A:E3:E0:A7:38:02:20:78:11:D0:F4:B5:58:3D:26:C7: 75:5D:74:0A:42:6E:13:37:01:B4:F8:EB:FB:93:83:03: D2:89:74:34:20:36:DB
-----BEGIN CERTIFICATE-----
MIIG/jCCBeagAwIBAgIQA1AicklsPHMM9qgc1v+yZzANBgkqhkiG9w0BAQsFADBZ
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTMwMQYDVQQDEypE
aWdpQ2VydCBHbG9iYWwgRzIgVExTIFJTQSBTSEEyNTYgMjAyMCBDQTEwHhcNMjYw
NzI4MDAwMDAwWhcNMjYxMDIxMjM1OTU5WjBlMQswCQYDVQQGEwJVUzERMA8GA1UE
CBMITmV3IFlvcmsxETAPBgNVBAcTCE5ldyBZb3JrMRwwGgYDVQQKExNZYWhvbyBI
b2xkaW5ncyBJbmMuMRIwEAYDVQQDEwl5YWhvby5jb20wWTATBgcqhkjOPQIBBggq
hkjOPQMBBwNCAAQ6JIZr7FTWz1sChIVp6M4fk8O3bgzWi8I7l/jXFPV6+h+rZJoz
vtFHklXxvVtLCn3PKV5CLykCwGAE2DfLcf+vo4IEfzCCBHswHwYDVR0jBBgwFoAU
dIWAwGbH3zfez70pN6oDHb7tzRcwHQYDVR0OBBYEFMvzVcdMOz0OkP/i1vkIe2l0
hCjjMIIBFwYDVR0RBIIBDjCCAQqCCXlhaG9vLmNvbYIPdHcucmQueWFob28uY29t
ggpzLnlpbWcuY29tggxtYnAueWltZy5jb22CD2hrLnJkLnlhaG9vLmNvbYIWZnIt
Y2Eucm9nZXJzLnlhaG9vLmNvbYIQZGRsLmZwLnlhaG9vLmNvbYITY2Eucm9nZXJz
LnlhaG9vLmNvbYIPY2EubXkueWFob28uY29tgg1icmIueWFob28ubmV0ghBhZGQu
bXkueWFob28uY29tggsqLnlhaG9vLmNvbYIPKi53d3cueWFob28uY29tghEqLm1l
ZGlhLnlhaG9vLmNvbYIPKi5hdHQueWFob28uY29tgg4qLmFtcC55aW1nLmNvbTA+
BgNVHSAENzA1MDMGBmeBDAECAjApMCcGCCsGAQUFBwIBFhtodHRwOi8vd3d3LmRp
Z2ljZXJ0LmNvbS9DUFMwDgYDVR0PAQH/BAQDAgOIMBMGA1UdJQQMMAoGCCsGAQUF
BwMBMIGfBgNVHR8EgZcwgZQwSKBGoESGQmh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNv
bS9EaWdpQ2VydEdsb2JhbEcyVExTUlNBU0hBMjU2MjAyMENBMS0xLmNybDBIoEag
RIZCaHR0cDovL2NybDQuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0R2xvYmFsRzJUTFNS
U0FTSEEyNTYyMDIwQ0ExLTEuY3JsMIGHBggrBgEFBQcBAQR7MHkwJAYIKwYBBQUH
MAGGGGh0dHA6Ly9vY3NwLmRpZ2ljZXJ0LmNvbTBRBggrBgEFBQcwAoZFaHR0cDov
L2NhY2VydHMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0R2xvYmFsRzJUTFNSU0FTSEEy
NTYyMDIwQ0ExLTEuY3J0MAwGA1UdEwEB/wQCMAAwggF9BgorBgEEAdZ5AgQCBIIB
bQSCAWkBZwB1AMIxfldFGaNF7n843rKQQevHwiFaIr9/1bWtdprZDlLNAAABn6YW
nfwAAAQDAEYwRAIgegbt/2ojwCBqqVRR6z6AXtpLXMM34VKceHesG0D8I+4CIHJ1
vWCR7ho1Top0iqUZfjA8UF+jogSJ7i/9rmu+4k78AHYA1219ENGn9XfCx+lf1wC/
+YLJM1pl4dCzAXMXwMjFaXcAAAGfphad1AAABAMARzBFAiBt4gxWL14Njtd4c4jR
KsiE9Kjknww3Fy4kGq8UlnOCtwIhALILUP8owHv+raptJ4MTW3lE1ZQnml+gQH73
bqhV7TZNAHYAlE5Dh/rswe+B8xkkJqgYZQHH0184AgE/cmd9VTcuGdgAAAGfphae
JQAABAMARzBFAiEAyJhWiKRsOp/uxxvTp3jFUZlHUVoRKV10G1E7GuPgpzgCIHgR
0PS1WD0mx3VddApCbhM3AbT46/uTgwPSiXQ0IDbbMA0GCSqGSIb3DQEBCwUAA4IB
AQCcWOcRCp54BsZrjpqDqTXSSGBql3UgQxxDBelcgUJ41v3WdqLiAoQBJNOunCFE
BDcmYy05fr4AYXBiADY1vrxhCfTY8qokPgOVCSAhHQJeBM5PgRSZSEUClmWdEqST
ozlOAT+tY5oY0ONlUqtaf9ECc3+N/RjXP5w1ykBf/lSgOdw53437v922ta3iXvA7
FVHs4HYZWUTp+ksnIcGt57iYe2oVVxW0H+PyJ7PPLycfBqLJe92Dnj87VJGOUMtw
GjQ0FDFtNF6LPwpBBahNCH8SO8c//LDXBgvFgRqEsI6wW3VQnoncfb+OEIoznyfO
+hUYjgHkOkUkY9wb8B+10kIl
-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-23T12:42:13+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
2020-09-24T00:00:00+00:00
Expires
2030-09-23T23:59:59+00:00
Days remaining
1461
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-----

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

View certificate JSON

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