umiworkshops.org

Issued by R3

About this certificate

This digital certificate with serial number 04:0c:2d:43:a6:81:3e:bf:76:43:49:fd:26:e6:6e:c5:29:24 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=umiworkshops.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:0c:2d:43:a6:81:3e:bf:76:43:49:fd:26:e6:6e:c5:29:24
Serial Number (int): 352592698650911937900226244165384423156004
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 1a:fa:9f:ba:52:03:2c:1d:b0:89:ad:e8:88:6b:b2:fe:03:01:29:2f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7f:64:85:a7:7e:3b:e7:05:41:13:52:19:8d:8f:89:83:33:52:81:cc
Fingerprint (sha256): a9:f9:1a:a8:4d:56:5e:c2:47:84:44:af:7e:f2:00:5a:e2:f4:0e:5d:8a:89:03:1b:4d:16:ed:a1:f2:9c:2d:27

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

Revocation information

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

Check the revocation status for certificate umiworkshops.org

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for umiworkshops.org

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

switchstates.com
umiworkshops.org

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Certificate

The complete raw certificate details for umiworkshops.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzhzHfHAhuQ6qeRj8t0k1
UPO/NNF3Z3u46I6AYIDrMzpn/YfU2OHUZoxbxZRrZcYi47WQkewuGSWW87cuTa26
fieGgS7f1iqnZ9xEViNhwAVlDxiH7+kYnZbSPNT2np4zwjPDKOUHv9KWal81mhSe
z1ouHgKQhLUNNKVQlyEBBoU0YcrpjZlR6NQfzIeqWKeJTXtoaAv20PJ/PKGwF0er
qsMzDOfRMkgJw4sWRimSfo/Xd1wqVPhMpdTeG+TuhlY5lF5DDILVNN4ETE1P9CbG
PObuZAm9U3UGEp4yjlSYodKK0gEzGTAZbL7pCw73KVlWxkWsXu62f19EnUOYI+Vg
uQIDAQAB
-----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 352592698650911937900226244165384423156004
 . . . . . . . . [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 2024-03-04 22:48:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-02 22:48:35 +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 'umiworkshops.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26019282396423557092398018609378666480436062669574938060354162595104833584480799235223621872686279495223629523228306738018204184953292898978177667299509959473399151437218894905270111738943583771507470332340974286174139603455479021425646746495625732102635082284033123721403241298955401772001405804411744071212188748253706883482343426400979958501214948159754627627513998972366747139752419725665492705740432736094337556698247895754677114342293305777864049010387066865330967207206544578618030736355477901711152961678549437099097340877928697385737759315421777654714078888165637340744745274077851528459619838724098509594809
 . . . . . . . . . . . . . . . . . . . . [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)
							1afa9fba52032c1db089ade8886bb2fe0301292f
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'switchstates.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'umiworkshops.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 (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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e0bde85e00000040300473045022078089f72b8fc1c5f56c9e56adfc6a7cc968acbd8a0166378725f91b498adaa49022100af1aa01efc43438f9b0bab3f1756a5c4e35c5c9bd46003b53acc03283498afdc007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e0bde85f40000040300483046022100f8975e43274caff2595b8e630c1b3a479ed93be44880d10e00e31f9fdc0eba8e022100acff7f74594eacae092a655f68940c0cc20265e09075af2262376b6b4e28f69f
 . . . . [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)
		0005a6512003134358d3f8725f33d1ac6ad4aea6870fefcc728d3bed75664b73a98e0d265a2d271fe34da9d13c266e3e122bd167f935caa4a1608f8968bf8d114aa4d318b65e04d92bdc79062c9d0335c2765a6328edc6b727d83d011e1694b0c4159f5268d635920d83dfcd8a563cb4babcf35e9b405937fee2d920709eede2abe6aa15f75fcfba570b1df0dafb641b134c2dffc6c8c5a31561ea0f4d313f9b8c7e7db51457bdb7f42d882d1b3a0c063e9bdc1d255c9ee5f826743852a09f2b8ee5215f46b97dc6528b50c53619df52bfd6a808cdf49788384ed0116f20e63e9a35c2c1209fd79bc9d22384c0d53baea442da53eadb478bb1275c89f31a940271