cosima.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7a:de:d4:6e:c5:53:1c:b8:bd:6a:68:0e:52:3d:ab:fe:65 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=cosima.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:7a:de:d4:6e:c5:53:1c:b8:bd:6a:68:0e:52:3d:ab:fe:65
Serial Number (int): 303147498188332219584786771109382395264613
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 11:ca:32:32:55:33:f8:b7:d8:6f:cd:ed:7f:b5:f0:08:25:e7:bd:58
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8e:57:83:17:d7:8f:5e:cc:01:35:0a:f5:b5:79:80:0a:73:2e:1b:84
Fingerprint (sha256): d9:2f:c9:96:98:15:3b:de:b0:11:08:1e:75:46:be:f3:12:e4:0a:23:36:ed:3a:80:09:78:09:ca:5a:c2:91:ba

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate cosima.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cosima.net

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

cosima.net

Other certificates including the domain name cosima.net

(limited to 100 certificates)

Certificate

The complete raw certificate details for cosima.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 303147498188332219584786771109382395264613
 . . . . . . . . [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 2019-07-28 10:49:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-26 10:49:33 +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 'cosima.net'
 . . . . . . . . [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 775450285509544030995991824779271874441501328946011245698142739210965126614782175916711796966503129795197380176538660115969451719637132669528273416683504161003460743322160569253875638566416007740964389077399544421496868987264340239600116918057887906030032288703105866832477145799852794280620252802833787615903283857295468727122223946731484913161775658664253781865092368787870421475369959658767086978772569314256331100697556435106175116849907869998400640274347924968753171362894138689236301433688440533238185502620318675382247868138862950010143790929409939435132883869425277065899603014937497275190043996075510856990887725904880990136051544826307098703669056633412223965750146959242719344735135851610604085298120397427654703085568240614582401815920697842433476249654311688234996777494865047278341979842877522155818850048789886211306368138104130755393884554526782293206949747127826292886720192988800102913410267333600236990672847273638833206429134583287953098320403341473432946133150216679006614009471625287242257679418441527572990149896370392427470842182011382786163672526790305704343423551129504048845882043428624513563351741988059526072181573308202733813007662998915074996442415122831126942796300458308524519195432746876774834308281
 . . . . . . . . . . . . . . . . . . . . [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)
							11ca32325533f8b7d86fcded7fb5f00825e7bd58
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cosima.net'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c386a1e060000040300473045022037ffc5bcd892c4af31b9d48e9bf2f49e50edfa658f2ba0573b8f7b7ddb7904fd022100d25b821534bf0feddc225c4beef67fa2f92cbe39b4806da7e65a123ba1d32ff2007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c386a1c000000040300483046022100a6c46783a73e204672c6bb52c837379cb65fa491c54466ba15b00a4ad36f74bd022100ab05821a1504a385c4a3f8c91e68b26f320444dddcd5f1e061b429850c99b945
 . . . . [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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