www.28912.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f1:21:75:c9:c2:a7:47:c1:37:97:b7:b4:fa:dc:bb:c6:eb 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.28912.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f1:21:75:c9:c2:a7:47:c1:37:97:b7:b4:fa:dc:bb:c6:ebSerial Number (int): 343389384338006625037751971094912927778539
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 9a:d7:93:10:34:c9:bb:90:64:1a:fa:95:bf:67:44:17:d5:98:9a:36
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 1c:2e:1b:16:39:67:99:fa:ef:93:d4:4c:45:4a:4f:d3:df:27:8b:16
Fingerprint (sha256): a2:0a:56:28:3c:fc:d6:9c:b7:6a:60:73:b4:a2:1a:9c:33:bd:45:0d:ad:6e:61:4a:c1:34:9a:ee:41:a8:9c:1a
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.28912.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.28912.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.28912.com
Other certificates including the domain name 28912.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.28912.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUjCCBTqgAwIBAgISA/EhdcnCp0fBN5e3tPrcu8brMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMTIyMDI0MDdaFw0y MDA0MTEyMDI0MDdaMBgxFjAUBgNVBAMTDXd3dy4yODkxMi5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQC/L8S+rQlingLI5SChdAE+QEQC5WNkwXTu IFmDFqt8Z/Wva9a5pCTu1iD0e5txKUNlcjzgwqYL2okKV9nh1/Hiw1BJAYSJEk45 mPUEFWpspFO5stdZKCYqOl/C0rzDgNQX1G1Fm/pWe4WhegAkO7aGpDMX9UMXULSx ecUVOqliKJqpPEu6MgkXZmCjf9Gr2DtKExIpuGuIQBzlzjAE513LdilUN2i8E1m3 g+UCyVnIuHTlaVUAFyDe8Kmmuxeu8N8iOmz43G4JHo1/Ys1cesWYIsmuOQHfAOfA WKony3r9wV0Ub4RW7rK75p7eoHIgIacrFsPfLQPu0x4kipP3jgpl6NjLG5UBd2V+ SOQzKItnfXcR3Yzhf49V9l4c05dUg8sbhJlePxqdLvipSo7oXM/dx1C6bkSQ79/h fGdNmZvpFqx30wL+UqqvvQeYI83/L+ypNBiFn/kfA9tuVUjevy5/g7o5Dj4kzaSB cbYUKMr3z2OK4qn1eRuZLn5VgiY59GV+YwcfG13SSU+UIFtbt4VWkVloeFh01EW0 pMQYyCZK0ygdqvie21VD+RvJjUgOIZCQgXs3Hz1VMQf+5cFyZSNRTfAXv35RhSH6 pUeJqz4O/ye0WWbf/Mw2XHeWEkRB51w6CF+PnXGoSiBpsREf5CmeXJnXbYqGfwng N4lSTOX+/QIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSa15MQ NMm7kGQa+pW/Z0QX1ZiaNjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy4yODkxMi5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdgAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAAAW+bpIHGAAAE AwBHMEUCIAEFwZeETqZBA4/E3xziYxnAZBLkQOoO1PsOskegHGPkAiEAwkUm9tvS 6jP720Q7I9JQBX/TzTdUvPfSlW6bHqtr0QAAdgBvU3asMfAxGdiZAKRRFf93FRwR 2QLBACkGjbIImjfZEwAAAW+bpIJwAAAEAwBHMEUCIDa76m6hoDBH1/TJ9ubHOZ8N 4kstpdCIpBaDgPsINNejAiEAzf3Y4fiRMmdbD9jWuV1OG7gZt3YxiTApv/PPwuhd xx8wDQYJKoZIhvcNAQELBQADggEBAAHYhRaHRQvA1hkTs3WUyAf18zkqOVCYM5FB f30TZLQCh6+RdJUwhOBJa3G5lu8uxXJWzzujymnUx32ZaUT3c5nx4X7S/MeDQTiq xkdM/wpZ0tjO0y3mtlXL3lfEAdqSKtuKu2C1lbDDKqVHXQ3pu20VU7gDnI2fmzmA du5q/+dn/IN4ook1dYbUAg3PakxwaWiR8Caq3sI3N9yxCGXEPGBDEDGUC/tJj3nH dfMmnqik4cbqKORORdnOFQY2bYOI6wIY487WAnj0Pq0HHyg+71re7kd7Tyl518vD War16wqaqvR1GtiyLAFuz+Ro5OzhwiX+AdaXDzZG9YuCPhOUuYw= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvy/Evq0JYp4CyOUgoXQB PkBEAuVjZMF07iBZgxarfGf1r2vWuaQk7tYg9HubcSlDZXI84MKmC9qJClfZ4dfx 4sNQSQGEiRJOOZj1BBVqbKRTubLXWSgmKjpfwtK8w4DUF9RtRZv6VnuFoXoAJDu2 hqQzF/VDF1C0sXnFFTqpYiiaqTxLujIJF2Zgo3/Rq9g7ShMSKbhriEAc5c4wBOdd y3YpVDdovBNZt4PlAslZyLh05WlVABcg3vCpprsXrvDfIjps+NxuCR6Nf2LNXHrF mCLJrjkB3wDnwFiqJ8t6/cFdFG+EVu6yu+ae3qByICGnKxbD3y0D7tMeJIqT944K ZejYyxuVAXdlfkjkMyiLZ313Ed2M4X+PVfZeHNOXVIPLG4SZXj8anS74qUqO6FzP 3cdQum5EkO/f4XxnTZmb6Rasd9MC/lKqr70HmCPN/y/sqTQYhZ/5HwPbblVI3r8u f4O6OQ4+JM2kgXG2FCjK989jiuKp9XkbmS5+VYImOfRlfmMHHxtd0klPlCBbW7eF VpFZaHhYdNRFtKTEGMgmStMoHar4nttVQ/kbyY1IDiGQkIF7Nx89VTEH/uXBcmUj UU3wF79+UYUh+qVHias+Dv8ntFlm3/zMNlx3lhJEQedcOghfj51xqEogabERH+Qp nlyZ122Khn8J4DeJUkzl/v0CAwEAAQ== -----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 343389384338006625037751971094912927778539 . . . . . . . . [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 2020-01-12 20:24:07 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-11 20:24:07 +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.28912.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 779973261594752396721046114801345479144226999530281765182775371493672927526435215412668069364030961029320714891696895274881192549386489776604211205156477874106187237474675143474725650283347873046166513402583457295002806134415875127990572107365342290710410827440889743942757389751019443032811836537364069890316984013474168962964330183522232071386078796831262181333646627592890744905166211611636495147976883641862841539647651794757521709590882043469241484029096173036185686850516357022203685026327961142331978619078575642385835331517221183396262305684599347544837596192889285929009730714715097992792996394851274246461731868385274831099560533190173563614008027046754715136912630154725152475675042008723995182813337715922597121076258075887278429579111766941404373124695883391024309959430791965419317323369334341829323357411182405737269846023160478945232778870903793018897484454386299942566971452011882630125390088134474361050288565070797767872669278800468995124773679164391173688531508556408351840205086345460732889173334023138793976586228124974165665462201217938236154114140981021243476330438697850207838407370076270612367134623232878975808630450563597861870463554120342453486750754826735305353690157367131670313688034929460858686144253 . . . . . . . . . . . . . . . . . . . . [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) 9ad7931034c9bb90641afa95bf674417d5989a36 . . . . . . . . . . . . . . . . [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.28912.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f000760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f9ba481c6000004030047304502200105c197844ea641038fc4df1ce26319c06412e440ea0ed4fb0eb247a01c63e4022100c24526f6dbd2ea33fbdb443b23d250057fd3cd3754bcf7d2956e9b1eab6bd1000076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f9ba482700000040300473045022036bbea6ea1a03047d7f4c9f6e6c7399f0de24b2da5d088a4168380fb0834d7a3022100cdfdd8e1f89132675b0fd8d6b95d4e1bb819b77631893029bff3cfc2e85dc71f . . . . [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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