www.28921.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:19:e6:45:f1:d5:e7:59:c9:40:54:7c:72:96:63:23:73:a6 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): 03:19:e6:45:f1:d5:e7:59:c9:40:54:7c:72:96:63:23:73:a6Serial Number (int): 270150002580825883757970202957390413001638
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 77:8f:c7:eb:c7:ce:50:e8:bb:37:cf:12:40:af:a6:1b:b2:a3:cc:32
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): b6:57:1d:95:08:ac:00:b7:0c:07:e0:ad:22:ee:be:1c:04:3c:6d:f3
Fingerprint (sha256): ef:75:b4:33:c4:52:4d:a5:9f:93:36:9a:95:c4:42:80:19:e4:06:01:e8:0f:08:cc:f8:b2:ca:1d:eb:76:b0:57
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----- MIIGUTCCBTmgAwIBAgISAxnmRfHV51nJQFR8cpZjI3OmMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjMxMzEyMDdaFw0x OTA2MjExMzEyMDdaMBgxFjAUBgNVBAMTDXd3dy4yODkyMS5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDSs/9ZdatueEpxgB0zuYYzgd2UcT+OvF4Y 9avD1qWLbCkuqsxBuamNZmLjCGiwyFGrKAIAqEGKddLJz9mkQdsiW+8MWSfNked7 6/u4Q9iHE6lS7z5HoVeJEFQ+SvUJ7jkfZHUfDCu1TlHJVQlKoce72hbWWSHEnujV R66l8EDOnF6cKPGunmkeDjRwgLgG9YWRPlpd3ERL6auhst9yz2DIiB6+bVK+/UT8 oh3sXM9LJodn4eUWevyRFKHYpJVCBP9dhcmVOsNUjYw0+7MMUYbiMbScqVeQtL+1 3yKK5v4FgzvBxhvpAVwBfqfFhqUkunL4Il2BHFll0YVRj7DG3+Rf7i7C8IhLtoNx XPOVHmS5ZbwlJjm1E+AF4mW7yPvUMOvIKuKdwPUniBdUIHS6I3uSM9Zb5XC0oEyT XJiU2mg6VNWIr9z4q4oFFH+YRUUdRKaqqboq7SmxPyVbjilh19P7GV7ibfj5r90A NUvX9ws5YDWBE2epZOvsBa3jqcm4lynfrpjjlfNGJ8fGkONb+0HB2e4DCEhd1/ft 7N+FiBmluSj8E5ci+MGyKT0s+J2D82gywnTTZqAG9oQXIft+NRwl5ZXaaKCjXNsc Z3ulcdKJempeAhaqc9mqdyhG4W3VrzL5p93m1SSMy28Z52D7W0PlYPVLSHILdCyT Swphatu5WwIDAQABo4ICYTCCAl0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBR3j8fr x85Q6Ls3zxJAr6YbsqPMMjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy4yODkyMS5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHx AO8AdgDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8okwGd3fHb/gAAAWmq5PxQAAAE AwBHMEUCIA1+9x0WjnwB0f11sEhuSgSBrCLGByIimJyQEOxiVZKXAiEAlIIV4+8V OiLUhq3Cwz+42JIRQxRrnqFzjWfFRcSmPmMAdQApPFGWVMg5ZbqqUPxYB9S3b79Y eily3KTDDPTlRUf0eAAAAWmq5PxUAAAEAwBGMEQCIG/NhRFHUB7s+NrCybJgfJGV KgZsXQoEPS9LPjCE9R8MAiB7QxoJ1wKUDdCT2K4gdoivPN/be5/j4QkRZ7fgKFPj SjANBgkqhkiG9w0BAQsFAAOCAQEAY2j650WrmR+05dIBmL+kIAqYoLXzsjOhVSNR bmt1bqsNK+5dqvXi+8dcDEzywqxJMDpgX9Ms+uVcQwvgWqFOGGEl1lvKMi1it3jN n8dwaGCWlQmXNDodetcNzVJf3QEIIOr4TJ/dMafqnM07LkK0Y8qUVTrMevn1iniA V3gfsbOie0F8eIlnl/H1buoVy3EP2awPvOLeD0EO+eJcxwybA88uDElGyiFz0aga CEqOHwPsIfJ1s7xmjEAVVrQXC+K/ZganDz+gfM7ToTAEhCEtZgU/8BcF+J6eHvWW B5alMYISV9Ih9LMK+qXuwrXKtRqLA/ejGNN+iMmzno1ex7bnMA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0rP/WXWrbnhKcYAdM7mG M4HdlHE/jrxeGPWrw9ali2wpLqrMQbmpjWZi4whosMhRqygCAKhBinXSyc/ZpEHb IlvvDFknzZHne+v7uEPYhxOpUu8+R6FXiRBUPkr1Ce45H2R1HwwrtU5RyVUJSqHH u9oW1lkhxJ7o1UeupfBAzpxenCjxrp5pHg40cIC4BvWFkT5aXdxES+mrobLfcs9g yIgevm1Svv1E/KId7FzPSyaHZ+HlFnr8kRSh2KSVQgT/XYXJlTrDVI2MNPuzDFGG 4jG0nKlXkLS/td8iiub+BYM7wcYb6QFcAX6nxYalJLpy+CJdgRxZZdGFUY+wxt/k X+4uwvCIS7aDcVzzlR5kuWW8JSY5tRPgBeJlu8j71DDryCrincD1J4gXVCB0uiN7 kjPWW+VwtKBMk1yYlNpoOlTViK/c+KuKBRR/mEVFHUSmqqm6Ku0psT8lW44pYdfT +xle4m34+a/dADVL1/cLOWA1gRNnqWTr7AWt46nJuJcp366Y45XzRifHxpDjW/tB wdnuAwhIXdf37ezfhYgZpbko/BOXIvjBsik9LPidg/NoMsJ002agBvaEFyH7fjUc JeWV2migo1zbHGd7pXHSiXpqXgIWqnPZqncoRuFt1a8y+afd5tUkjMtvGedg+1tD 5WD1S0hyC3Qsk0sKYWrbuVsCAwEAAQ== -----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 270150002580825883757970202957390413001638 . . . . . . . . [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 2019-03-23 13:12:07 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-21 13:12:07 +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.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 859593713522645913620754691789044815320253464047687074113973345713396805135465893497087629706349087219675983766997150557529062411558450326215432823361941462702416002377130598033404589303312682963563975799382692577448916242232788319240999075482212472554852304625853842648897813499615746595840773748294601644782524456121161317125395662253590583509317272726407972535281895397425027298217990679998243688307192437843316319493370631931141213713459896848144339167853401688139206343990010799892357034630115573493945406111276068662682293856178730361740806549252004505189285219534453300586181777629243655384407537944073206757307823439131488558583098371272321848966922420211951237656007032324495678133634956282841237420861955264870343749209631254418234158162075851731984085972197934825477770525312280828980775265977120703806589031709464290035875518546109948188661772129480260848098401708316260857521712708566156207208354666671607192843042793969946631455961451402038253757227053998183779031964855628414613955388934400913250589097420020712243371956514572681693636410762583959259425134029047697775472365579526040552864592530713240595520992430351403204572430996488218362601203556624004884538759258582367677947508250674105911923341402241271684905307 . . . . . . . . . . . . . . . . . . . . [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) 778fc7ebc7ce50e8bb37cf1240afa61bb2a3cc32 . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169aae4fc50000004030047304502200d7ef71d168e7c01d1fd75b0486e4a0481ac22c6072222989c9010ec62559297022100948215e3ef153a22d486adc2c33fb8d8921143146b9ea1738d67c545c4a63e63007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000169aae4fc54000004030046304402206fcd851147501eecf8dac2c9b2607c91952a066c5d0a043d2f4b3e3084f51f0c02207b431a09d702940dd093d8ae207688af3cdfdb7b9fe3e1091167b7e02853e34a . . . . [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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