studi.org
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:9e:1e:da:21:ca:16:b0:15:8b:ee:61:b7:f4:ac:83:0a:d6 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=studi.org
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:9e:1e:da:21:ca:16:b0:15:8b:ee:61:b7:f4:ac:83:0a:d6Serial Number (int): 402254767146468599173616732573983509252822
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 63:5d:a0:4c:c7:c7:fc:1e:e1:b3:71:81:1b:3b:a4:dd:0b:c3:4d:1e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 28:fa:26:b6:95:b6:e9:52:0a:89:5c:55:55:30:aa:1a:c5:3d:61:5a
Fingerprint (sha256): 9e:50:a0:86:76:c2:c8:58:ec:87:d6:00:bd:34:8c:4e:46:fc:df:b1:76:71:ea:6d:4c:bc:56:5b:83:52:c5:b3
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate studi.org
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for studi.org
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
studi.org
Other certificates including the domain name studi.org
(limited to 100 certificates)
Certificate
The complete raw certificate details for studi.org in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSjCCBTKgAwIBAgISBJ4e2iHKFrAVi+5ht/SsgwrWMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDA0MTIyMzA0MDBaFw0y MDA3MTEyMzA0MDBaMBQxEjAQBgNVBAMTCXN0dWRpLm9yZzCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBAMiFmm5GyDpu9xSKFiX9uhD05RqyZKvpez9TNHBr TYVVp5Ogx5J2mb1CEBJOSIiXeBSzOkfzqLDFWmfbvaeMQC85tLLmT/ErRbC5vsCj U8HqOxXzEC/1YHXrd1/iqEBTt2vbeohx0bPW8/ymREamKZek1TM2tzpe9u3QVoRu OfLjtKEHRQ3Fw8RzakuTO9SfeU+YnJjbknFdCYruOMB0Oc6LKIDFaJduU87Segp4 YITBVFoiG8OpBGLswhXDxEo8m4gbutBz0bVgwKoJElDuB22mgqFh5FQEWOh4iPO9 NNL99zzsQEQYh4IX7OFbEgd2G1p7g6hoYK/tsd93NIIImfs2q0ZFU1NpMWkS7mUX XGKbuJ+fmR4DV9VhD6/SwVO9sJznsM35EN3w7Fh3pfH9hWgkukhbCx+3Z5fFcpBE GuwxLGJJ+bGARb6BeX6Y2myqyhekm7xSDGQSzWeIiXmb8nSWLc3NMNL+786iDvpf kGmB94SbWyOfc+bJojrqO/UD/nyJIhicOe7bWD+T/LK8vwggysvV9ILh/4tDYkoT /tft9mrl9SopCOnRmKcM4xZVbKWLZuTp6pLXy4JpEIImg4HGS2KFa7qrXxfJD5BM NBc9QYCTd3JzK9hpph4JrmDYx5gXlylBabtBEcMh+jmxsdysXE8ILc13aFsMkfBg spJNAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFGNdoEzHx/we 4bNxgRs7pN0Lw00eMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJc3R1ZGkub3JnMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHcA8JWk WfIA0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMAAAFxcNmYwwAABAMASDBGAiEA jG1Nbt5ry1Z9EyhaKUeouQsW6Q9fPsMGvCylZcGrtSUCIQDey6kFbCOFmZ/ozR2I gwlfWot8fTny+cM9yObpucZUMwB1ALIeBcyLos2KIE6HZvkruYolIGdr2vpw57JJ Uy3vi5BeAAABcXDZmK0AAAQDAEYwRAIgN/RppvpZBTYplYVSfs8upg/QfYrEGCX8 1kZBzkWMlvwCIAQYXUEyKo+uTVJzamLp/IhettxGOXEslIZI5cYlGMZMMA0GCSqG SIb3DQEBCwUAA4IBAQBaCXU+Tum/m3UmDYFrTdbmUXBP2WHRL/7lXJtDJg3ZsEDH XFuYhRfdHT3L7ddVgCpee0wW6zdS/l53rGbgOHPTmh/3nxbo8EyefQa1hoHfkaRK nsqdapoHUxPtAtEOtz1d0ZVlWdfN6pHJvhnsGvEBCOOQgJ4lkudN8NIKHd7fMlrn tx6Pbc7dFwnJgKcT8nrOJlNkU8SuR7Mi0sKsSOFDKdnDs4wF7EBWIduSrG5Yq4oK i/+sB34VcpMmmCCFe27e06TfUxA4r12s19ZgbI7PbmuY53iTzXReB2wfpDrT1UIz mwT1oD+LJCoyUkUwspKdWmjfiPm3WyeZT7yZCzq1 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyIWabkbIOm73FIoWJf26 EPTlGrJkq+l7P1M0cGtNhVWnk6DHknaZvUIQEk5IiJd4FLM6R/OosMVaZ9u9p4xA Lzm0suZP8StFsLm+wKNTweo7FfMQL/Vgdet3X+KoQFO3a9t6iHHRs9bz/KZERqYp l6TVMza3Ol727dBWhG458uO0oQdFDcXDxHNqS5M71J95T5icmNuScV0Jiu44wHQ5 zosogMVol25TztJ6CnhghMFUWiIbw6kEYuzCFcPESjybiBu60HPRtWDAqgkSUO4H baaCoWHkVARY6HiI87000v33POxARBiHghfs4VsSB3YbWnuDqGhgr+2x33c0ggiZ +zarRkVTU2kxaRLuZRdcYpu4n5+ZHgNX1WEPr9LBU72wnOewzfkQ3fDsWHel8f2F aCS6SFsLH7dnl8VykEQa7DEsYkn5sYBFvoF5fpjabKrKF6SbvFIMZBLNZ4iJeZvy dJYtzc0w0v7vzqIO+l+QaYH3hJtbI59z5smiOuo79QP+fIkiGJw57ttYP5P8sry/ CCDKy9X0guH/i0NiShP+1+32auX1KikI6dGYpwzjFlVspYtm5OnqktfLgmkQgiaD gcZLYoVruqtfF8kPkEw0Fz1BgJN3cnMr2GmmHgmuYNjHmBeXKUFpu0ERwyH6ObGx 3KxcTwgtzXdoWwyR8GCykk0CAwEAAQ== -----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 402254767146468599173616732573983509252822 . . . . . . . . [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 2020-04-12 23:04:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-11 23:04:00 +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 'studi.org' . . . . . . . . [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 818057929567659177153035314426165627678432661452159006242544112348040096269352854836601114049761145337383739438097216985193830146606346364121920532693993988688784053966174605704628580953380753732374129343363347447526013740002642055999299295917825389752771091552013826557118535256932563413945893675967385924517893265513276557861950346144352832046947238675922739033256568729143831995398258890598975148651882042946730226564136972370835349853548219791461802043563609385425175898946311002870722507419141561342247566063653890402800607673226600037203276128203518884061972128373686025763831866556668359291878649247975238629819827410365094189561514123499847614709192886482796272550472492694950455572362991571625677903003074456219333049280376704085076062879277187505366023221409423384358139365565862456834377986760714376425027012981550371802071801781424545670599541754261454231093230866728999517495817470472909820000023426516711836209905738871072158831387096396301479014877078316263324059063338105453471219207470945689426749050326016912651361422278133823933185335426209290583413856273545093260483231450574759091993502274882811503793228182830948841475048197918410584847852347934641518582705364371942213171576677812741367301262207103468894851661 . . . . . . . . . . . . . . . . . . . . [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) 635da04cc7c7fc1ee1b371811b3ba4dd0bc34d1e . . . . . . . . . . . . . . . . [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 (13 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'studi.org' . . . . . . . . . . . . . . . . [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) 00f0007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000017170d998c300000403004830460221008c6d4d6ede6bcb567d13285a2947a8b90b16e90f5f3ec306bc2ca565c1abb525022100decba9056c2385999fe8cd1d8883095f5a8b7c7d39f2f9c33dc8e6e9b9c65433007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017170d998ad0000040300463044022037f469a6fa590536299585527ecf2ea60fd07d8ac41825fcd64641ce458c96fc022004185d41322a8fae4d52736a62e9fc885eb6dc4639712c948648e5c62518c64c . . . . [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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