www.28921.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:18:b2:17:83:f4:57:75:5f:c9:0c:1d:f2:67:3d:d4:c9:90 was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.28921.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:18:b2:17:83:f4:57:75:5f:c9:0c:1d:f2:67:3d:d4:c9:90Serial Number (int): 269740359283815121213763183338472963623312
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 2e:6b:38:03:46:de:69:0d:5c:da:00:f5:b0:bf:7a:e5:61:b6:96:90
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 8b:88:73:6f:a1:9c:c6:55:69:cb:a1:16:8d:43:b8:9a:d8:f2:71:a0
Fingerprint (sha256): ae:8f:2d:65:5c:ba:62:83:30:00:90:a8:8e:52:68:ab:9c:db:14:f0:f4:9f:32:1f:27:84:86:0e:80:77:13:57
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.28921.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.28921.com
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.28921.com
Other certificates including the domain name 28921.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.28921.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUzCCBTugAwIBAgISAxiyF4P0V3VfyQwd8mc91MmQMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMDcxOTI3NTlaFw0y MDAyMDUxOTI3NTlaMBgxFjAUBgNVBAMTDXd3dy4yODkyMS5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDnrn0AyocD9dgnmVfMUKjMPt6Ucxg6oATO xJszUKhQeve3gc4my+5FqpQQvEEl7C2zTy0jMRYRSVCW+CqowGYXf5LVUIXuugSj 09PoKQzf+eLZZ21NIuFZ3KcuOd+948RaFzt+3E/9VEtIs0frRPgUEjkn200EYBtJ JYUU68sKlEOqkrt2RHWgTpq8NApCz+jlUFXaTLfG4cmlcrBfnDQ9nuf1eumyHNXH nKsbwQAISoGo5Qp/dVirvTmSJw3u/qPi3DNngr0tSMNEwEexQ9xdrAGhpqWeeBVJ z2wXj6AYgzwp9UT+lSEVuVl/P2cKLL1HVaLJmIAiOdw11eWCsaIiwQZx89nhe5bS B62zEoFy3nc3uwk4k6Jba3j1VntePz8wxPw2BR29ASfu8zsdNT8+2phm0MkeTsGr A3W6bdn1dvC6iOMwA8E2DFrm+99tGD0MVcs+s8sm2wXq81YWBHfxB1hBlb0HadIF IZrtp0D5bh6XwzxWSjGmCNzZ+Hl+2gpCGqqfTOU9RsFjcpAxNdL6XtOVvUSks1ZO 6PcMeKRiTD/nn4TcNe9EEWkuhbQDQmDFlR7gq+dmkStZaenZFBhB3oLXVzCZO+qc VOykOKTMonKih/OnhBmDFQFvg4U3GYGMuSUD0e0GKjWSbH2B5+XHKnFSpHEB08A+ P2oDNkPbiQIDAQABo4ICYzCCAl8wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQuazgD Rt5pDVzaAPWwv3rlYbaWkDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy4yODkyMS5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHz APEAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW5HjWW7AAAE AwBHMEUCIQCrTJiFwFRlTxqnCVuBEJcLJH/K8jO8WXdb8FcckVS7CgIgNyqTPMfY oiqIMa3c5+4z/sixbkNz7XwIhtq7BEFxTDsAdwAHt1wb5X1o//Gwxh0jFce65ld8 V5S3au68YToaadOiHAAAAW5HjWXdAAAEAwBIMEYCIQCxmtp1F8v2GDorSh82KCn2 47UgrDC7qU/mk6p52oGQIgIhALxbBvXWfRWT0hN2p4xdxg7vu19A3CeF2i34LbS6 vsRRMA0GCSqGSIb3DQEBCwUAA4IBAQBOKDFgF3z7Ma//BW/OUGtq4fc/gpLj6MYP OshPQ5AsonKfch/PbRkfaPF+wN8vOV3o66SlQuPaTOezs6XDX/hD2ZGnn2TBaTIy YIFyoMtmIi3iu89SMFi9RvtfmMlzLfU8QQVQr+6WxAzwwq9ZGPeL/b/Dcbzp1aRd JywEiFijDSKaKmjbpBcrBGsGW6HBiowA0B3PqW51iGReX4WTBr3Jgd4fLnFCbdwf 4HEpQv9pQs++MCuw29Nl0UegPN79e6dXAKnj5RfWusesDUs1bAvFF37dMRRI7MJo 7ldpzpUk5lEHY8+vnI5v6os5q25/sFC9Fybo7z5QDZ3tGzHnzI23 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5659AMqHA/XYJ5lXzFCo zD7elHMYOqAEzsSbM1CoUHr3t4HOJsvuRaqUELxBJewts08tIzEWEUlQlvgqqMBm F3+S1VCF7roEo9PT6CkM3/ni2WdtTSLhWdynLjnfvePEWhc7ftxP/VRLSLNH60T4 FBI5J9tNBGAbSSWFFOvLCpRDqpK7dkR1oE6avDQKQs/o5VBV2ky3xuHJpXKwX5w0 PZ7n9XrpshzVx5yrG8EACEqBqOUKf3VYq705kicN7v6j4twzZ4K9LUjDRMBHsUPc XawBoaalnngVSc9sF4+gGIM8KfVE/pUhFblZfz9nCiy9R1WiyZiAIjncNdXlgrGi IsEGcfPZ4XuW0getsxKBct53N7sJOJOiW2t49VZ7Xj8/MMT8NgUdvQEn7vM7HTU/ PtqYZtDJHk7BqwN1um3Z9XbwuojjMAPBNgxa5vvfbRg9DFXLPrPLJtsF6vNWFgR3 8QdYQZW9B2nSBSGa7adA+W4el8M8Vkoxpgjc2fh5ftoKQhqqn0zlPUbBY3KQMTXS +l7Tlb1EpLNWTuj3DHikYkw/55+E3DXvRBFpLoW0A0JgxZUe4KvnZpErWWnp2RQY Qd6C11cwmTvqnFTspDikzKJyoofzp4QZgxUBb4OFNxmBjLklA9HtBio1kmx9gefl xypxUqRxAdPAPj9qAzZD24kCAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 269740359283815121213763183338472963623312 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-07 19:27:59 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-05 19:27:59 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.28921.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 945178444286041188616963380594843419364043221667097233554167757897924688950656012769687128212020035826926401526082975023757146893283395868450898977891407326022035357143405352504241259932329972264172958537254185761746773173237562887361117346636313751206563342266014184246500956827617456545643726874371353482243969216503684259704595433723007015696200523522563360731117459068604259795267569212913147196052743552288250848288710390445410837811974643959159611974258976803094677332960803983131349726723257812975737698644653683787975044397933564323791813133766363836362471254619333264593060854565604248488585808654730394960556491705505810202683058033011352266892925574241177915276455832554220534412760506422696529687329522680799373956168543284615478798391998620865182591621280146840900670257459570221636484005438565583693253027545901722568054230194503352007159020928582666117710311301353034394960312250263034178418654211086976230396826135475465026073664094270906938760923014301727526723762303819251431770075481569430096432725421392960910794363066897220108641601337228196234419606112117243748139582214840573887052824593811200668845061012556138617146753904464942464767375904712917876776761027178803259285094891582658890184619412275061433031561 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 2e6b380346de690d5cda00f5b0bf7ae561b69690 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.28921.com' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e478d65bb0000040300473045022100ab4c9885c054654f1aa7095b8110970b247fcaf233bc59775bf0571c9154bb0a0220372a933cc7d8a22a8831addce7ee33fec8b16e4373ed7c0886dabb0441714c3b00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e478d65dd0000040300483046022100b19ada7517cbf6183a2b4a1f362829f6e3b520ac30bba94fe693aa79da819022022100bc5b06f5d67d1593d21376a78c5dc60eefbb5f40dc2785da2df82db4babec451 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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