www.opticafe.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8a:25:8f:58:d3:ec:b3:de:6b:fe:3f:b5:db:56:70:bc:5b 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=www.opticafe.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:8a:25:8f:58:d3:ec:b3:de:6b:fe:3f:b5:db:56:70:bc:5b
Serial Number (int): 308345750166307503587719517424535636851803
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a5:0d:c8:db:df:eb:72:1e:0c:69:14:96:c0:b5:5b:dd:5b:1d:34:ac
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 62:a7:15:7b:fb:2a:30:72:f8:85:50:ae:34:ab:c3:f1:83:62:31:1b
Fingerprint (sha256): 57:05:fa:5f:a4:a5:ad:c8:5c:c6:26:f0:5d:e5:8d:f2:f7:62:ce:41:d7:4e:da:4c:a3:56:c1:8b:d1:1e:2c:4e

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 www.opticafe.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.opticafe.com

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

www.opticafe.com

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www.opticafe.com

Certificate

The complete raw certificate details for www.opticafe.com 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 308345750166307503587719517424535636851803
 . . . . . . . . [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 2019-10-12 11:19:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 11:19:40 +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 'www.opticafe.com'
 . . . . . . . . [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 865873717271989351704948431896261195810687328464932238986144745590311915440914048767549149613621731165326713883635030487995478578227647178275130626446227299584166401000670732849447724455203446444575633707119208288378818218847213996230603182347483482929990529227287813041873525801869424188866343679768042357512986925275719612637371486632228925198742066383485201736187466727268305533254059943153959311824483134005145492824513972464282157035679489498710598235445005560945145204005166390513171720426101293749525905264797539421502598232739464563727864628058897294283407515150941655317480792893791245109356182201027932220071866817751081887340089012348727229909402851889923518744652465923192221364547201708816022794139369803747108718075167591669941863048992169967224476909008093386132280874924300066945980708861659126371053272497333786028636020962175224399438059698046116908980228698831900166428323865379118391486393330967516684451769209592120802029993603942966469865016095833990166474148500968864596890587321085081506715366758357119846932350535546327621363874428278571495316871760188266552519113737828695806939087707339289393427207873702342731084735889691727131092629211325242330141114841931872154089920703350594206524084303728990151007311
 . . . . . . . . . . . . . . . . . . . . [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)
							a50dc8dbdfeb721e0c691496c0b55bdd5b1d34ac
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.opticafe.com'
 . . . . . . . . . . . . . . . . [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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dbfe8fd560000040300473045022100fca6e0e26f19b4a3197473110290158b60568b9e6a1bb9842226adb57f2fbe15022066cd073ed8446c36a05f208c5a8f31bc199a5aea0f5073e9f3cf99826ea4de4b007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dbfe8fd460000040300473045022100cf1d728f5acc2b4ccc7ad3a679940e1b8c43b40dcccaf12945334d094815c9eb022039e86bd92c0a2672f1a553debf11c80876e1f6d47191c0496a47f42b92c86249
 . . . . [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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