optica.africa

Issued by R3

About this certificate

This digital certificate with serial number 03:4a:51:bb:71:fb:32:95:58:28:72:4b:91:b1:7f:c3:c3:a4 was issued on by Let's Encrypt.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=optica.africa

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:4a:51:bb:71:fb:32:95:58:28:72:4b:91:b1:7f:c3:c3:a4
Serial Number (int): 286626393686415519235104815599459579970468
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3e:40:c5:b2:b2:bd:3b:5b:a8:43:95:ea:fd:b0:6e:93:ad:28:92:32
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 92:c4:5d:55:49:74:d6:4e:22:c3:c1:00:97:e0:cf:c0:3f:ef:a3:e1
Fingerprint (sha256): 07:1e:bb:92:8b:84:b4:0e:a6:a8:7d:9f:ce:98:23:67:13:dd:2f:c3:e4:89:62:a1:4d:1d:f2:3a:61:b5:ed:4e

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

Revocation information

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

Check the revocation status for certificate optica.africa

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for optica.africa

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

optica.africa

Other certificates including the domain name optica.africa

(limited to 100 certificates)
www.optica.africa
care.icraft.us
cummins.iqnox.support
www.optica.africa
care.icraft.us
help.geekedoutmedia.com
support.enrichment.kids
support.mirrorfly.com
support.techbliss.in
optica.africa
care.icraft.us
soporte.holistor.com.ar
help.mayfront.com
hpe.inflowtechnologies.in
helpdesk.myprojectit.com
support.link4life.net
support.frogsystems.co.uk
ticket.optica.africa
desk.efoodmenus.com
care.icraft.us
care.icraft.us
help.privocorp.com
support.celadonconsulting.com
optica.africa
support.celadonconsulting.com
support.activedatadigital.com
www.optica.africa
support.adrenalineit.com
help.geekedoutmedia.com
care.icraft.us
desk.zandeins.com
support.adrenalineit.com
care.icraft.us
care.icraft.us
support.mirrorfly.com
support.enrichment.kids
care.icraft.us
helpdesk.myprojectit.com
care.icraft.us
support.frogsystems.co.uk
help.chicbeautybox.com
www.optica.africa
www.optica.africa
www.optica.africa
support.lenoxtravelmanagement.com
care.icraft.us
www.optica.africa
help.hospitality.rmggroup.com
care.icraft.us
help.geekedoutmedia.com
optica.africa
optica.africa
care.icraft.us
support.enrichment.kids
support.longlivelodging.com
optica.africa
optica.africa
support.enrichment.kids
care.icraft.us
support.droneupdelivery.com
care.icraft.us
support.jkdiamondsinstitute.com
support.droneupdelivery.com
soporte.holistor.com.ar
support.pillpacplus.com
helpdeskz.qx.net
care.icraft.us
care.icraft.us
optica.africa
care.icraft.us
www.optica.africa
care.icraft.us
optica.africa
desk.efoodmenus.com
support.exceedtelecom.com
onhelp.canplaycasino.com
support.optica.africa
support.exceedtelecom.com
care.icraft.us
support.wirestreamwifi.com
optica.africa
help.geekedoutmedia.com
support.lenoxtravelmanagement.com
help.privocorp.com
help.hospitality.rmggroup.com
support.frogsystems.co.uk
optica.africa
care.icraft.us
onhelp.canplaycasino.com
support.lenoxtravelmanagement.com
its.ronati.com
care.icraft.us
support.wirestreamwifi.com
ayuda.labuenacrianza.com
care.icraft.us
support.beyondaccountant.com
optica.africa
www.optica.africa
help.geekedoutmedia.com
actus.paperless-innovations.com

Certificate

The complete raw certificate details for optica.africa in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArg5wlWBCxKcdXKLaboDg
iLw8NhVMf8fXIYaXaIXbsFhWogzaHt6Qc96utGZ6Wcuju44oWlksbWlg+e+lSmig
Gr51MH2vVnoc61mkLPm6l2k8DlCxoJPMML96Qq520Pbf3Tt8+qFDw2785x0m+9fn
GoOqpzpD7WKUv5oV1m1sdMXNNMtTPH3oc5CAT0DCdJwY0HFfErnZD5y3uyZ39s5t
3khsfWPpkBZKHtz4zcmr0jl9Ayjr/XZffOKQbiM23zgweyGVDbbGCGJnEZFYdf1W
Muy9oar5BKdODu5vQJ8qwo27e24EpkMSvkSYMw80XsW+KyC/zUR7YQcdmABMYdhw
IQIDAQAB
-----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 286626393686415519235104815599459579970468
 . . . . . . . . [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 2024-05-31 13:28:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-29 13:27:59 +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 'optica.africa'
 . . . . . . . . [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 21972585584651066298375364685495964411637116914076146300145632278101323780564781432636400482237250624076861244553650045441577761158329290078891062719001293226144276135348444628831363475905212865769517257070116231270285555639007685631617197527411756549082442756480674954562988491706713256184105524549333861458157050306276029447016276288569226425068448497866542497810581288895384484720991127978151615604845371641251541801567866027140381411234875856213128401907051978541948473031197254006972195592908378253669062843626697576800280039924738781223447669748514369080605306515465893138131383157544606246348946025514867912737
 . . . . . . . . . . . . . . . . . . . . [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)
							3e40c5b2b2bd3b5ba84395eafdb06e93ad289232
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'optica.africa'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018fcf0ce933000004030046304402200b2c3650b6f43d1a6cabd337edfaec1f9b32c2bf07207c5d3c88a443095b39d8022049d6c5e4a214f531f841a3bfc986152d74761419010a1f05ca8deddb027082b30076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018fcf0ce93c000004030047304502207b570d4c6251679e2511b90f58acfebf788d3b12cfd404390641c6230fba80d5022100e345d3bc13ba259e16b0ad3a98132982f86d9addbdcb03bff2e9cfe299f8490e
 . . . . [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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