cosima.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:55:ab:58:49:64:ea:87:e6:ce:f1:1b:5f:51:d1:52:0c:fc 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): 03:55:ab:58:49:64:ea:87:e6:ce:f1:1b:5f:51:d1:52:0c:fc
Serial Number (int): 290488615381574582118600313182802205084924
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fb:e0:17:91:92:a5:12:24:37:4c:71:df:d5:99:68:c0:e2:97:35:87
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d8:85:f9:1a:81:63:ad:ae:7a:e2:4e:9c:11:16:36:2d:11:b5:fe:e5
Fingerprint (sha256): 54:79:0d:3e:e1:5b:f7:2d:ff:0c:bf:a3:c7:bc:f1:76:e6:22:04:36:ae:66:35:a7:8c:ff:5f:e1:34:95:d3:cb

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 290488615381574582118600313182802205084924
 . . . . . . . . [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 2019-09-30 00:43:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-29 00:43:37 +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 858413637763597056286852866631746033190779445829979558090420413778802351807664482865582603732173528860194458320610491216612766675984903295768699563980066665647223049410318276022006896124147202733124527171814079732570135482576015260690848169457817842573539184321655768121753020474010014570972891877662594963845951164678936530829155902682114483099222768704182119287118716818859985621064167214046503579088855408420802747014699816966345567671748802040180210453800009584921938780233864202191263638275460847952552825255885629453098137467980897410632278957908193732504462024715358214948967927900755052368486736564888805020321354838909803960755358611577369463435927528366861316670070729963438566948063359044387196836538896696441407420094381651402998099471924823370985912993998921843089183282831402973763738036304493618270848999508333564754253132042514616760770774262095538277070823529864935775045897006102723962123975847487083755312573081547025349026604084173544795324892067872439674405412853489598916651208656128617515243280452141152773400133942028717004020343034303464293011223076012942676721001348748477439826279114323284926403154517527671670660722042278143115292333364279395618048728931252468481195800798435568266560149342204651187177953
 . . . . . . . . . . . . . . . . . . . . [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)
							fbe0179192a51224374c71dfd59968c0e2973587
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d7fd65a74000004030047304502201d19f343217eb4056ede90afa664bd24dc99b2aaf9d42e53e7afc59f8132796e022100f025fdbfa380b27a84e57ab029bca90072eb8240f6bac0d4caa70e270942e1cb00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d7fd65a9c000004030047304502200de0b93bb3da80086cdceea1e680e72a1c644adbdf15d0bba421fdbd74e3d098022100d43b0ce262ffbc356511dcc84e1f77902b4ded6d88345ab1cfcb169c1c79cd9a
 . . . . [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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