www.28912.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:a2:4c:18:6b:dd:16:a6:58:05:8f:61:3c:31:ca:05:d5:60 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:a2:4c:18:6b:dd:16:a6:58:05:8f:61:3c:31:ca:05:d5:60Serial Number (int): 316563749367011290737096254388623722796384
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 34:29:fa:27:38:e7:32:06:0b:d3:0c:4c:2e:7f:a0:64:5e:e3:2e:ba
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 6e:17:50:f7:32:8a:f0:a5:8c:68:56:ca:50:c0:7c:ba:0c:29:83:3a
Fingerprint (sha256): aa:b0:dc:31:40:af:59:c9:53:f8:f6:9e:bc:b6:58:c4:94:83:b1:c6:65:ca:4d:a3:4b:c4:b8:28:0e:90:ad:8f
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----- MIIGVDCCBTygAwIBAgISA6JMGGvdFqZYBY9hPDHKBdVgMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMDkwNjM1NTRaFw0y MDAyMDcwNjM1NTRaMBgxFjAUBgNVBAMTDXd3dy4yODkxMi5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDmF3lO8EMN0h1guortYNWNAIxfGf1f0Wr5 0DSvXyzkvJp2aBUGRaCzOv+dAdY83vcpQrxXvRpO5FTFVuVsMNfgh/D8ksBsGS/u e2a+AIBCYrPsjWDsJw7/vx8Ja6R7+dQcDHkcYB5ISk5UeYabHIhEo/CBNWMvDTFu roaW3A5JQ5eV6jborgCcHiBQRAtmlHAZjkW9jj0rMfeYtcnIzzgVsF+TfcZ8ixpa HvK/iJmxUZ6CHezVVZ6OMXXrKpqTjiHpO7faXb22S4n1B30xM+YzxVsobYeqFBlS TLOHO16W2JzQf6re23kkq8gSgGjp+ygfGUrBn9B/PdTnEmu0Zm3FkvCAy0RQmccb 5a9lyiNNyNYv0Zd5K3dbbCaLXDoeolmEBbeZjOnQTX+c8x31ml5o5BOcUIrbESYk yF1lfeoZ04aQEN3fiUkMmXx9M/R4ASPIqR8unb6ndbtJFBcjq29vxViOJ2bv87yO bKYognBwWceqWFxHdYzYlM7JLS4iJy0pli9tdOkLb6wKRn0bYgK7bRWjjsT1Wki3 deF7mB17oHuajzBtmCcjwy06SagEHEyhXkU6GEY/7BbZbWKBNLtXPTxEYlQAqC+U H9ZgyAHqkrNd/FFv0PmcJq91vkc/R2N2FarMDapF1nkETqV/Z7XPWkCuQVlLCzm+ 9S8fQJOELQIDAQABo4ICZDCCAmAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQ0Kfon OOcyBgvTDEwuf6BkXuMuujAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy4yODkxMi5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEGBgorBgEEAdZ5AgQCBIH3BIH0 APIAdwDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAW5PF0IVAAAE AwBIMEYCIQCAGvKDR/wam5Cm+40mwPjNUH0rDoxxHN8h+6dbXVuCeAIhAJNGmYQ9 GfKf5E57SNqCtHb8HIvCD//3MPNOkytq4ajtAHcAsh4FzIuizYogTodm+Su5iiUg Z2va+nDnsklTLe+LkF4AAAFuTxdCBgAABAMASDBGAiEA7jNOn0toSmJ5NxGb6G9Y EDfpACHl07+bMCa+fKJ5ZDACIQDBwJf9wSCmJOSKx/Ns4/GsBdqcbz/xwdgYhEtj PgdIFDANBgkqhkiG9w0BAQsFAAOCAQEAaaDkRYkYHdFM67URPX2aZHKaVYOO6uzU LeyoGFQ9kF8b/8i2ZzBSHen7ozfGNFhRfMPBorbjClBWYramWvdHFdSTF4JuPXSW xCSuSuSkDajfuZlZLHR6xcpCxx1zw7UUiD8+yBotmhY13Ib0jscrQE8Vv6JNbA4m ui58I45l27xu+9XlVcwL7Xod+GWCUvwoOkYQfjVh498AIUbS9mOpCoHj1c9xAtQ1 6skdR2s3Zcc6nfKB92+hXfjR0bML0A5mt+rzQomFMLxY6be0pS7wxDBTHdguF6Qf S4KfZ70JQO9uJgPZ3vTmc+Dk+Q3pZWJs2nSjY9e8xve2WVDxnoXEgA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5hd5TvBDDdIdYLqK7WDV jQCMXxn9X9Fq+dA0r18s5LyadmgVBkWgszr/nQHWPN73KUK8V70aTuRUxVblbDDX 4Ifw/JLAbBkv7ntmvgCAQmKz7I1g7CcO/78fCWuke/nUHAx5HGAeSEpOVHmGmxyI RKPwgTVjLw0xbq6GltwOSUOXleo26K4AnB4gUEQLZpRwGY5FvY49KzH3mLXJyM84 FbBfk33GfIsaWh7yv4iZsVGegh3s1VWejjF16yqak44h6Tu32l29tkuJ9Qd9MTPm M8VbKG2HqhQZUkyzhzteltic0H+q3tt5JKvIEoBo6fsoHxlKwZ/Qfz3U5xJrtGZt xZLwgMtEUJnHG+WvZcojTcjWL9GXeSt3W2wmi1w6HqJZhAW3mYzp0E1/nPMd9Zpe aOQTnFCK2xEmJMhdZX3qGdOGkBDd34lJDJl8fTP0eAEjyKkfLp2+p3W7SRQXI6tv b8VYjidm7/O8jmymKIJwcFnHqlhcR3WM2JTOyS0uIictKZYvbXTpC2+sCkZ9G2IC u20Vo47E9VpIt3Xhe5gde6B7mo8wbZgnI8MtOkmoBBxMoV5FOhhGP+wW2W1igTS7 Vz08RGJUAKgvlB/WYMgB6pKzXfxRb9D5nCavdb5HP0djdhWqzA2qRdZ5BE6lf2e1 z1pArkFZSws5vvUvH0CThC0CAwEAAQ== -----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 316563749367011290737096254388623722796384 . . . . . . . . [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 2019-11-09 06:35:54 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-07 06:35:54 +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 938692217663331795230426314260506236214900241614721191051794939923959147024312811749474637915527225704192431369097630216137086728977557449359937591453786217746382504893691443552841562833257846438258793977231986677206665588656860535420217137152479084449800856532083084845941548985785299575098507401415974128463962574319039107705873113388043197517052551523612853610699742562549684049461406300523889030968601809408042666587281122468149020324942997955978788399970128729306290186856389430530877102989755000490294222550902390372725511455809573593352934694119269127113544147504647908273927410163736146194238102385804807533083636143429091196832379431470855523206688532597020552153650113202625754558893388223982146438294450442168195285345306125857694142709734531033678617299342820658106140855498393349013499824048966637280778380577074972588072451842732848421303396000414335227781321040141241658848125510340512606868050382271856188799682099040463923644618279322417345277997553823781790853839303818100566031719898926940551378182847415266698402822396633132610647259185384193779325451378068929875010965084238183350902563110215626970876387388946336944200230640269403222419124914867302092443742573829541392184995303109921557925481033797557760001069 . . . . . . . . . . . . . . . . . . . . [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) 3429fa2738e732060bd30c4c2e7fa0645ee32eba . . . . . . . . . . . . . . . . [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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e4f1742150000040300483046022100801af28347fc1a9b90a6fb8d26c0f8cd507d2b0e8c711cdf21fba75b5d5b8278022100934699843d19f29fe44e7b48da82b476fc1c8bc20ffff730f34e932b6ae1a8ed007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e4f1742060000040300483046022100ee334e9f4b684a627937119be86f581037e90021e5d3bf9b3026be7ca2796430022100c1c097fdc120a624e48ac7f36ce3f1ac05da9c6f3ff1c1d818844b633e074814 . . . . [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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