cosima.net

Issued by R3

About this certificate

This digital certificate with serial number 03:24:24:c3:03:14:22:02:00:b0:64:55:2c:24:d2:e6:1a:21 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=cosima.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:24:24:c3:03:14:22:02:00:b0:64:55:2c:24:d2:e6:1a:21
Serial Number (int): 273635887772612512860045004551689920191009
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e7:19:1b:8b:cc:07:6c:b4:38:70:c2:a9:c2:6e:49:88:2a:a5:a1:63
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f6:a4:3d:19:16:5f:37:3a:25:3a:ac:01:35:79:94:bd:87:56:ad:6b
Fingerprint (sha256): 63:16:65:80:e1:9a:6e:8f:af:9b:1f:61:73:53:35:71:47:3b:6e:70:57:84:65:ab:b9:82:b8:c8:da:80:87:3c

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

Revocation information

OCSP Server: http://r3.o.lencr.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)
cosima.net
www.cosima.net
cosima.net
cosima.net
www.cosima.net
www.cosima.net
womenstaxis.in
www.cosima.net
cosima.net
cosima.net
wormz.com
www.cosima.net
www.cosima.net
cosima.net
www.centrografico.com
cosima.net
www.denverstemcell.net

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 273635887772612512860045004551689920191009
 . . . . . . . . [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 2024-04-03 13:07:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-02 13:07:17 +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 651307902422642022405748813577115901622260460611445083329660427682250832722804057246057676274383148324303594589419335429762190666906780692442840625086760619566045878011634974739031637263298354075172936863448814995058072946345323059225675930514746452016691221886687154168441188098169469585673771640884494225976991295835164741648695224163655249755401575442473827942787469253669397591797728256213430267735506761822739282382409132502429513716874025896363746643205545658153793286268156060360490251772500688390257755710522784993167117328995880012139639446035785117647372015162313618124900261931149355943529911716310159699986493649535003877590146938305799077939664984745526646562340823320665218378005946834635613291752663477193953004432586150569944034470443945137658252186128300463511487163537728653553870776861663390633440906011576970908821216018150362092900325436704221908714607979511115278382642395856297470354820161877493026056589923746605992130838903463108435733980570026446725916119781746717919083609421034416449761755871175839700075672156823928981689261156530430100336610738726938681588642596716739901413080663106323000201901102977519334537133348134234125509150882780903907038424678158314598549603670123014701644385522418838942308389
 . . . . . . . . . . . . . . . . . . . . [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)
							e7191b8bcc076cb43870c2a9c26e49882aa5a163
 . . . . . . . . . . . . . . . . [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 (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 (12 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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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