optiassist.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e5:e3:6d:93:db:fe:21:d7:45:ba:15:91:b4:d7:85:5b:c3 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=optiassist.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e5:e3:6d:93:db:fe:21:d7:45:ba:15:91:b4:d7:85:5b:c3
Serial Number (int): 339563823534520233703406296761438495398851
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ed:89:70:30:cc:b6:d3:8a:6a:5b:a9:28:47:a5:0e:36:b6:46:d3:44
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ff:51:aa:3a:fe:ba:57:8e:78:39:c8:0d:51:cd:94:84:6a:15:e3:0e
Fingerprint (sha256): 44:4b:a1:f5:7c:f8:3b:4a:2d:b6:94:68:51:62:c2:65:22:96:19:18:96:8d:25:f1:7e:dc:c7:04:ab:ae:b0:fa

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 optiassist.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for optiassist.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

optiassist.com

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Certificate

The complete raw certificate details for optiassist.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 339563823534520233703406296761438495398851
 . . . . . . . . [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 2019-12-18 00:09:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-17 00:09:58 +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 'optiassist.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 963946774917851421553024319001074704199677141811568666426896357197718475326807888904212420734978784079672055261269980551364497385857579895993214899172257936482347071863530686595753781405993660263301364111508154211646078225569446935668130515028026669032942741001878082015523378686253247389013475074149134804363903460687765113785009043587816185729023501498399324251880446810598362949719289906666128877892314053394071657898306486785559646148832690804494877333028254431029818832537383041639208566234071958684409796175270151839605719707343496230750559932742744447426873647645702364897918935422254933647553871417322393359828500182531861104162820883192299798082469525174263175560232342406262527515389807181650125824603089347508229064459305026649480860337642030098284527226403722806944357321660703858389182919192181471604495311272858427590782531076153552601675890150221156161844546380902577107685098310102959640123270197779419218954172269883675664176678059696616121380412840424804456313807598681818408460198805571579893276563073263606632686335019780341351921927707278393275546948522306817207841053901936353286454256095571855664205732419651010485300741003498692352943446084167499315605046374794221528229176166048253073948418404957912316113747
 . . . . . . . . . . . . . . . . . . . . [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)
							ed897030ccb6d38a6a5ba92847a50e36b646d344
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'optiassist.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)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f168df1780000040300473045022100bab5e973a7202f6f9e93160c12667aa57589075727dc46a32f2d48703b5504ae022005bba6ed881decb61f4a2b7d9e9bfb22c1799742b416c231deb18524967efd4e00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f168df17400000403004730450220267daf0079216512c3ea1b89fc75c3a3176bb911a404d5c898dae3a3bb40ba9d02210097989f8dfb191992f26d5c76d58c7bdc818ae7405419914dfa05ea2eece5d294
 . . . . [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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