studyo.fi

Issued by R3

About this certificate

This digital certificate with serial number 03:00:6e:a8:a7:a0:2e:b3:61:19:81:f6:42:a8:7a:63:b9:66 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=studyo.fi

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:00:6e:a8:a7:a0:2e:b3:61:19:81:f6:42:a8:7a:63:b9:66
Serial Number (int): 261483948580542677515757540299518605769062
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 63:b5:b6:89:1d:d4:d3:7b:c0:26:91:bc:15:69:64:d0:1d:8a:99:0f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cd:e9:51:23:7a:95:a9:50:e5:bd:ef:61:4a:24:69:3a:7e:4a:d0:81
Fingerprint (sha256): 87:a9:49:1d:c2:ac:d0:8e:ad:53:08:6f:f7:ef:3a:f7:2d:05:e7:0f:52:5a:8e:71:23:39:0c:ec:b7:18:7c:62

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate studyo.fi

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for studyo.fi

Public Key Algorithm

RSA

Key Size

2048

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

studyo.fi

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Certificate

The complete raw certificate details for studyo.fi in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0hMriwyPjJsH2gjdKmQH
jCYoEPH0WDcAJU9XafVgx4I8v9/nUXmykkikqf53QmC4HSUqnFFs4Z5m+g30T5px
a4WUsWg0m0US8Uy8W9KBWX9muf5Ftj8hV4NnrU8vbQlQQs+ZCZXUx0QDgrk9yje/
YBtDINGIejHeDwelJyzux+Pe66lD1OR5SILz3l7lyRVZo0KwQ+v8pQlk/K0EBlAv
pVp8kgPe9JdcrPZfoZaQqD6ZkcS6rsZMs8V2HZipLKd+4wTNstIyx+vgCSRMrhcX
j+dBWHqU2633fEIj6y6cbKwVHTdwmHYvDBcb/yZi1/6JMj9udYK02MBtZJcvjmeB
hQIDAQAB
-----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 261483948580542677515757540299518605769062
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-06 09:11:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-05 09:11:18 +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 'studyo.fi'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26519497166805998169920817047045718844913369124481292684759095365271912236939527670150463822960287988305014894573882167150461256189928010920527362371330107892533786289248452632753976158284206386685644303343882931189132131507158730812293113590683672672005748250799794894881965705330937668456513848029349406620657735839940422166517185996313798827396672407877861662366131063660641581114754924249326141263810058136149795009597138910728002393119294992071028298707744502598039718720540992433312950909569546200160468320719532025024549083608813957627782077164724648467527911680026082033356320006651174197781353276052404142469
 . . . . . . . . . . . . . . . . . . . . [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)
							63b5b6891dd4d37bc02691bc156964d01d8a990f
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 'studyo.fi'
 . . . . . . . . . . . . . . . . [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)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000187560c9c0800000403004730450221008fbcedab2456e8ed638ec11a79e068339bce85ce6c7903c4b0e2f96fdccf0f6e022008e7a4e9e43f22a3032d79778d29ceb1f563da7c7517d772c51de86544b86e2a0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000187560c9c100000040300473045022100b2e8c4f69febd140b35292a32382c561690711dcbaf92a376f32eca764054b3d02200e2daa12a55a4b8f082dcd846a1f66abff02c51761604210f8be6e092da77c2b
 . . . . [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)
		0011d7ac8489dcb19b04696c89c0223540b6701d3884716711817d4098092ef733d7fe58688492be74f0b9701f25a9c54b38ff312cab4951524dbe6e7af148b8de9ecdf273bdb80da137f705f1df458e038df71122a065eacc253f907a31fdba5272c64a6558e9810fc655b3500315deb837359e085a57bd2d108972b0fbf084524adb27c0c416b146fc56c27784862c7adbea2bb5e8fc6191739a813e3ead30a5be2c04acd78eed60cc93b9ad38ee4e3c03b34b688ec3f214d4c2cd5d16afcf3038c9c5b8b6e1b8f2e9a3e55c3344689a4f0ecb6cd7726dec27f7eef115500e9e509599b4bb643dd96f39682ed8d81269a87fd1878d3dcc1e8ae83943acef4936