blog.mu-sigma.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:62:c0:cf:7d:40:c0:a4:85:e6:93:7b:92:16:b0:dd:18:ce 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=blog.mu-sigma.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:62:c0:cf:7d:40:c0:a4:85:e6:93:7b:92:16:b0:dd:18:ceSerial Number (int): 382053104806364799438242902565518816647374
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: a6:48:3a:1c:da:c7:c7:89:8d:8d:d1:a6:c0:98:68:94:c7:38:03:33
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 57:5b:fc:2d:ff:26:94:b5:ec:f7:6b:1a:76:8f:03:3e:9f:68:66:43
Fingerprint (sha256): 02:ce:81:42:7a:7f:f7:36:2d:ec:f0:95:7f:04:d9:3b:3b:5b:aa:3a:b9:7a:07:8f:08:8f:23:f5:66:c2:c6:28
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate blog.mu-sigma.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for blog.mu-sigma.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
blog.mu-sigma.com
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Certificate
The complete raw certificate details for blog.mu-sigma.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWjCCBUKgAwIBAgISBGLAz31AwKSF5pN7khaw3RjOMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA4MTYwMzM1NDNaFw0x OTExMTQwMzM1NDNaMBwxGjAYBgNVBAMTEWJsb2cubXUtc2lnbWEuY29tMIICIjAN BgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA98N68ovbnC5yXMwVNMIaabQkU8G8 7v7AwGW/RASadzvlvB6gtAV3jD7GWmK7TnOVI2nEmZsER16OwflF6qhjke2pidKh BmotnZTfXZGDYktGsXCtvwUW0D2vsZICzLdYotPxyuquLH7EMgESTWC/xCwBT6Pz FDOeKiZh2qYrgpkMSC4d8DFS0vN7cNXQHy+XrlWe706jGUYy4wEFW5JsWzBOkw7o ZRLSigGsbtqx20/Cv7Q3nUcll2xFcqtm5kyjQrqu23kymKXgx7hona99Lhh/PosO ChgqkXgDJT89+5uLdOJxdtvb2ILa1gStbE62qgz3gOPpKPFWtNwWvnhWirhJH29G ETHnjP59rifpkae0I88NwCJqwFaA4B8BQ9OzbqNWlXIY/nSGY8hYt4oNEngbzFmG dqQZbSiqVp13+Z+uOsOhs12JGL/JjBU7DzIQ5SkBoGgkPq/NudwLkLbDtkB7uevO qs6kv/oUwCmL+CbTRGZBWCDn9ungg1tF1Lc+sdsKbfVGa7TZhnRY68jmj7u6nrsJ CgQ9LE5jFOZiMPWzMYabcboQJUVtgxMUU6F6XpSvOHApyymG+tN5gqDvJmWQcuQu 0hCD++NsuAWbaFWNRJPR4KBN8zbO6YaWK78Zsap50U0PVf7/6zD0TNa+vSGDlKhv 24Y3hvYKDiY3hIsCAwEAAaOCAmYwggJiMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU pkg6HNrHx4mNjdGmwJholMc4AzMwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl 7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzAcBgNVHREEFTATghFibG9nLm11LXNpZ21h LmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkC BAIEgfUEgfIA8AB2AG9Tdqwx8DEZ2JkApFEV/3cVHBHZAsEAKQaNsgiaN9kTAAAB bJi1v7kAAAQDAEcwRQIgcr4/3M1lYKGmOZamo1tuTxvuYPX8unFBEe25LZxVwU0C IQCuwVl1EUowcMoILweE1yP0BB+ErNc/JYkkqEs3rNkXBAB2ACk8UZZUyDlluqpQ /FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABbJi1v4UAAAQDAEcwRQIhAPz25UbOyheN QSwEdZTyIev1T91hvfiekgMNw7Nv4+sMAiA6ubhCc+Aw5tl0+fmnffcId+b/2a4e NxiGWateNFkLrjANBgkqhkiG9w0BAQsFAAOCAQEAMPCdKQRGkCaa8RVcAdM++87m NDz2IsN0KlA7bz9NzIX4w98xCOUdx5QofeIMs8BekkhII+jkuChFbiJbf4qn2CFm MKIilJVmZgfATwX3fbHffoHnoZvDok6u2RKTUiF7wBUZBSWy1BZvCPRCW1+GcZpN a4IEEsFWYY8yX/M5m4r0iBKZwoHqbXT76yhTgFPH3woQ8O+6UfU3lvTrddMQT+bl S8+UXvOGH0qDUCEYlHz0MrkZ+iAWwx+PWKsT+aNUBcNtbyg6BqbAUOiOTH0PKsjM Dvo6bssN/c333BN9fmLEHJTrDicrTEKRavPUg4Ff/NR7QjLVv9RadoG6K6iFYQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA98N68ovbnC5yXMwVNMIa abQkU8G87v7AwGW/RASadzvlvB6gtAV3jD7GWmK7TnOVI2nEmZsER16OwflF6qhj ke2pidKhBmotnZTfXZGDYktGsXCtvwUW0D2vsZICzLdYotPxyuquLH7EMgESTWC/ xCwBT6PzFDOeKiZh2qYrgpkMSC4d8DFS0vN7cNXQHy+XrlWe706jGUYy4wEFW5Js WzBOkw7oZRLSigGsbtqx20/Cv7Q3nUcll2xFcqtm5kyjQrqu23kymKXgx7hona99 Lhh/PosOChgqkXgDJT89+5uLdOJxdtvb2ILa1gStbE62qgz3gOPpKPFWtNwWvnhW irhJH29GETHnjP59rifpkae0I88NwCJqwFaA4B8BQ9OzbqNWlXIY/nSGY8hYt4oN EngbzFmGdqQZbSiqVp13+Z+uOsOhs12JGL/JjBU7DzIQ5SkBoGgkPq/NudwLkLbD tkB7uevOqs6kv/oUwCmL+CbTRGZBWCDn9ungg1tF1Lc+sdsKbfVGa7TZhnRY68jm j7u6nrsJCgQ9LE5jFOZiMPWzMYabcboQJUVtgxMUU6F6XpSvOHApyymG+tN5gqDv JmWQcuQu0hCD++NsuAWbaFWNRJPR4KBN8zbO6YaWK78Zsap50U0PVf7/6zD0TNa+ vSGDlKhv24Y3hvYKDiY3hIsCAwEAAQ== -----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 382053104806364799438242902565518816647374 . . . . . . . . [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 2019-08-16 03:35:43 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-14 03:35:43 +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 'blog.mu-sigma.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 1010787279712113444926591627368750018257213181887534368619677399037927245936965460039281496167931795393088409519493092422710588846521732212249909215763074302549354599213607121284178098793593233532633812165880913778557545696919326132597243023819129833351168339211424623674525235440220432689304758245757933563178182854207086008768979356556887752688182399840788601512535939043784067400709877815087110377134590656504412306760080254838193167288254674460474446781261295538492383221673632727192201620942490796074008692831172517208457993470391631310374691246073674628223488121987171541036271845443388151386461677027845154643987746497163770162498110524530906803332783104523525278570468937150877920664690597245480322578269896146467021966863457722362163695943929275786947110420680531751243194579275245636673506403755592428639279873820339704109896099697142037153618312170702638741822605947120220050952582521009657887859471478452848789810558871544449991222837743261062389186879310687799055112425123535259592526237499533362056028998652477351405504535669152330303570070522357686436652588194628674561937608210387634327451307747104618659225678776131203756560280487875887225341971368484517265660886934687139062051361214245575463096871370468819153159307 . . . . . . . . . . . . . . . . . . . . [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) a6483a1cdac7c7898d8dd1a6c0986894c7380333 . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'blog.mu-sigma.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) 00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016c98b5bfb90000040300473045022072be3fdccd6560a1a63996a6a35b6e4f1bee60f5fcba714111edb92d9c55c14d022100aec15975114a3070ca082f0784d723f4041f84acd73f258924a84b37acd91704007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c98b5bf850000040300473045022100fcf6e546ceca178d412c047594f221ebf54fdd61bdf89e92030dc3b36fe3eb0c02203ab9b84273e030e6d974f9f9a77df70877e6ffd9ae1e37188659ab5e34590bae . . . . [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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