www.bitbutterfly.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:f7:2c:c7:ce:34:04:8d:1f:ba:35:a0:34:c6:3f:95:38:d2 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.bitbutterfly.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:f7:2c:c7:ce:34:04:8d:1f:ba:35:a0:34:c6:3f:95:38:d2Serial Number (int): 345446125905939576495825095066828504643794
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 87:e2:ca:df:7f:fa:6b:b2:e6:ee:03:5f:df:ad:db:34:57:63:62:22
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ff:c1:20:e4:24:6e:bf:54:a7:23:a5:d4:84:df:27:f9:fb:d6:f2:3b
Fingerprint (sha256): ab:22:54:69:15:ac:2d:14:a4:00:b8:d1:d3:92:68:1f:26:a3:a0:2d:cc:d0:fd:36:db:1e:54:81:10:ba:91:ac
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.bitbutterfly.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.bitbutterfly.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.bitbutterfly.com
Other certificates including the domain name bitbutterfly.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.bitbutterfly.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGYDCCBUigAwIBAgISA/csx840BI0fujWgNMY/lTjSMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjMwODI1MjBaFw0y MDAzMjIwODI1MjBaMB8xHTAbBgNVBAMTFHd3dy5iaXRidXR0ZXJmbHkuY29tMIIC IjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxkQftNkpwWUFI5Z0k8OYnyuM 9HJ+hZMZhnD7eD+nmvCAxUIkOgNdAJh5hmtfVIf/t0X1QmrMhNsQZP5lRVSL6cqn EeFdG9yDsTSwLwXRP61+HlCw4UHWJZ5CGyFuHyo0x+vyxquKSCkin58OvX9jskbj YPtB+5IxXh04L4GrPitZD7Nmm1LnFuXMhGYvtWRqH5v75wyEj/I3GKorBOH0udIV GAqYfdvOeCIIaUi7h2DY7duRjhW8h+39PjyuO7lQpcHfQKwbuiWl524vyk4MV3C4 VBJcPupRtbNbCD242ufy/HJwZyXLdfa8Lyj4fNb1ifv0G+sjRcZqAs1LFU9kgdyw LaKG7TACl8Ee3OpmDqGPg6Y7YAcZk5Iz1iDttq9SOTbDkOhQfm/WApqvi0tmhnUa Z1nc2DaO6E7Vmb8lXIN62rtTccS/6lubqGWI/psHwzNupLb7oqFhZG8P3suQOklS jpVv/8p/lRj/U4uG4slJdzohAr4uA5OHysg/O9c4DsnY9qZv5ln/xYpqTQ9Rp9jW +QiqPyr5APeBHf1Y68HFz/Xs3W8UZNQpI6dIFv7O+Lonfj3FXKnyIyXTYNajh/jg xp7tyDmhUyodISv0t2qatfxEnH6lQblLE9ZD/tDR+AyF4qKqpZOI619FITGUp6Ag VMP3dEkAIz69kVMvcwUCAwEAAaOCAmkwggJlMA4GA1UdDwEB/wQEAwIFoDAdBgNV HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E FgQUh+LK33/6a7Lm7gNf363bNFdjYiIwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3 pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2Nz cC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2Vy dC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzAfBgNVHREEGDAWghR3d3cuYml0YnV0 dGVyZmx5LmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAo MCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisG AQQB1nkCBAIEgfUEgfIA8AB3AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaB cUVYAAABbzITQ2gAAAQDAEgwRgIhANWgmV3g8wiDrG6eJCH8ftL5lgRE//Mo+kzl KKVnuhKLAiEApLU3wZplGKFSPGrcPN0IjvUBa5n61viA2ObSRgiNq44AdQCyHgXM i6LNiiBOh2b5K7mKJSBna9r6cOeySVMt74uQXgAAAW8yE0ONAAAEAwBGMEQCIHBp cfsufE7fOd9Yc5c/8mNjAJQRpGUsdxnNPJW10JBJAiAOlvdAGotskgzrHozclGBe JHTP2+sdocrSkbNqMlhMDjANBgkqhkiG9w0BAQsFAAOCAQEAPS8IDYIZGRY9/CMd RcINc57SYe/CJpbll7nvXu6mxvBW6kx/t5awjsDacBEPgI04Fmc4pYR40m5rOBQb fb3e7UbBEzAZFHNDjDPVG11xWNQw5rGxpqU93eC0EaWYOeCThPO1QIfqDNB77jP1 suv9r85QuKGVJHRkNWq6WuhL9Pd4thnbjLecyEAtEopFI8W6QwUiahDHQgkRVBE0 hpHNFbVeL3Ei8Tmbnx0MUYknFEALBkmEQ+HX/cwug9v6xRfxRViDUmFa5TcMEb5+ EgWCQnJm0KLF/eN1YhxbaWqgS78pOiJsTvosMz+adPqBPtHUNa3HurCP74mGAQWv yhnHpQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxkQftNkpwWUFI5Z0k8OY nyuM9HJ+hZMZhnD7eD+nmvCAxUIkOgNdAJh5hmtfVIf/t0X1QmrMhNsQZP5lRVSL 6cqnEeFdG9yDsTSwLwXRP61+HlCw4UHWJZ5CGyFuHyo0x+vyxquKSCkin58OvX9j skbjYPtB+5IxXh04L4GrPitZD7Nmm1LnFuXMhGYvtWRqH5v75wyEj/I3GKorBOH0 udIVGAqYfdvOeCIIaUi7h2DY7duRjhW8h+39PjyuO7lQpcHfQKwbuiWl524vyk4M V3C4VBJcPupRtbNbCD242ufy/HJwZyXLdfa8Lyj4fNb1ifv0G+sjRcZqAs1LFU9k gdywLaKG7TACl8Ee3OpmDqGPg6Y7YAcZk5Iz1iDttq9SOTbDkOhQfm/WApqvi0tm hnUaZ1nc2DaO6E7Vmb8lXIN62rtTccS/6lubqGWI/psHwzNupLb7oqFhZG8P3suQ OklSjpVv/8p/lRj/U4uG4slJdzohAr4uA5OHysg/O9c4DsnY9qZv5ln/xYpqTQ9R p9jW+QiqPyr5APeBHf1Y68HFz/Xs3W8UZNQpI6dIFv7O+Lonfj3FXKnyIyXTYNaj h/jgxp7tyDmhUyodISv0t2qatfxEnH6lQblLE9ZD/tDR+AyF4qKqpZOI619FITGU p6AgVMP3dEkAIz69kVMvcwUCAwEAAQ== -----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 345446125905939576495825095066828504643794 . . . . . . . . [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 2019-12-23 08:25:20 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-22 08:25:20 +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.bitbutterfly.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 808855154662938064758474892183563546017839749787291652779073951105322808248138787905749890885246983029627782775108085162338930411260801927607530274116350388794439425015918381854021110443170337996125419215694472052026937321658134662916431327714922635901834949551643991330592395436317669258995943743910857397404473979957242090571219025546561034533409765414735799888702917808326496291388989680406163443052345344147751583586933125850563290588862703036909968187174735392544324484933303101655254851476480417871939661144032538879326342166402601475698430111115548434862507435800202777809616130923796922765876266325778311889145154756755186039327604907484591634949235303571280336954699791654975297498773818566601996363881316208326689405429171947194438959966920415280460780327401867305377301459829077717560138883469628284452762168419456805446723226011030207220952388991767376926823380348105197061091259618215703981350583268657937714198937510693796453641858601408169218925687928809725711827985971841956597204471775690508224863126493734308880713925863544745181075788723408792027229400709168895288941726952577322728491720331445456673791040190393313530334592394242559702625144807965826529458074130491217001377072452029740229963329488619161418429189 . . . . . . . . . . . . . . . . . . . . [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) 87e2cadf7ffa6bb2e6ee035fdfaddb3457636222 . . . . . . . . . . . . . . . . [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 (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.bitbutterfly.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) 00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f321343680000040300483046022100d5a0995de0f30883ac6e9e2421fc7ed2f9960444fff328fa4ce528a567ba128b022100a4b537c19a6518a1523c6adc3cdd088ef5016b99fad6f880d8e6d246088dab8e007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f3213438d00000403004630440220706971fb2e7c4edf39df5873973ff26363009411a4652c7719cd3c95b5d0904902200e96f7401a8b6c920ceb1e8cdc94605e2474cfdbeb1da1cad291b36a32584c0e . . . . [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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