optiassist.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b3:54:f6:47:2a:ac:bc:38:0a:59:93:54:c5:27:2a:92:3f 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:b3:54:f6:47:2a:ac:bc:38:0a:59:93:54:c5:27:2a:92:3f
Serial Number (int): 322360335374233981049990797791668149588543
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 44:ca:82:dc:0c:04:e9:a2:e3:8b:90:20:5d:2e:d0:e5:94:89:3b:fb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 74:ff:65:ea:df:32:21:23:21:0a:bd:32:99:bb:a7:7e:37:74:d3:d3
Fingerprint (sha256): 22:b3:3e:33:75:81:45:d4:ef:0c:1d:08:3a:20:1f:11:6f:ee:fb:e0:e8:b6:50:29:e0:b4:13:1f:1e:d2:cc:01

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 322360335374233981049990797791668149588543
 . . . . . . . . [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 2019-10-13 06:27:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 06:27:57 +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 691905639251208170890085962469453035051858225322994080777214687136401184529466641594824157566011038795463938575856487030436115029579766455283779319848106516683520038920564295880265672707537884514063657345065424946390375591338466821995068865419871998710333209283724079931727878169237186096709592378445990395014693792598007042298074667419779766774042860052850973678542247866240805038289145710983445496638326076857692856527201771655462296939418007663267622040873384000747696906504150336540339347944101894097064557246178071234675397631527033781195674617137129260193642547149797817217783589805998115104426814451266839484565463602374271004611257598593940520147158708128749026271131825785824954578481602955042721106641989039496852866553799834451045688379147866886545450717536542139941023056294822906501529777596581179211846957417179462114839294762414663785530131330836736340389150573959659010489604772203213782718940908328790850740594832735622657772427686869035182107400054175726397087181078586668434295380765120014377131079733313094255391430906865470736280996872080105639975617672912947419716155117221347363571237635506551532835027082465955426768085816750620668199741432021809595065409540947224277834232150306930963067754951317791306464441
 . . . . . . . . . . . . . . . . . . . . [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)
							44ca82dc0c04e9a2e38b90205d2ed0e594893bfb
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc40447b7000004030047304502203ae462d88db7a1839d58689b6ac382e02269041791e8cf1aceec517ce081011f022100957f6687df573f7e6c79397af62736bbe1d401d7fc36e342680794e7dd79407c007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc40447aa000004030046304402203166a6d24342a7293dcb18512eb0677b3eebdd09c1678baccab79f8c69aef9d8022036056991f03cd5f0b72943f1c2b5e8cbb0259daeaf51902f08f1eeb17e28f840
 . . . . [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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