www.optiassist.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:62:a5:53:ed:31:c7:4a:70:71:6f:46:5f:ee:1b:ab:07:3d 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.optiassist.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:62:a5:53:ed:31:c7:4a:70:71:6f:46:5f:ee:1b:ab:07:3d
Serial Number (int): 294904288144351412406112194764262515345213
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ba:46:7c:e0:d6:0e:6c:ef:30:00:12:d3:de:d8:6d:80:b5:ef:f8:74
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 49:e2:e4:69:e6:7a:f5:eb:23:11:a8:a9:48:a4:ab:9a:0b:a6:22:ff
Fingerprint (sha256): e1:88:87:4a:25:46:24:1a:ea:71:ca:8e:07:d5:4c:a0:87:a4:fd:b2:ca:31:28:61:ad:97:58:d8:34:24:b4:3a

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.optiassist.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.optiassist.com

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Certificate

The complete raw certificate details for www.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 294904288144351412406112194764262515345213
 . . . . . . . . [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 2020-02-15 20:51:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-15 20:51:53 +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.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 721049758120353725881620210823961699099278143505761883822025875711531453087810161819549868152453532247162740179871097742145849493132244746170973706119830707606046391558283752175318971782332468501859643021860308873884715300770182848207013430845938123355705537309902681241463972761349079565292707701499661051923953820790002291985758611067910129418773131904000564098890875403433324475293643021786991568710383662930871631760584357975610208061228021525380689716888959626032869468599472223976502203418194957488363868132138200469997600476870048955002659942583876179469819390058241814498048702385769479544871993818049506570264820797538666719006234907196072520400033729857329766832683378565059158487779162947823238340862904510267106173914845342256113048759608033724927316115032330292381347087817919330451772453604412345527376800437203686738621466763459051700348486990150843335851586866647076766163810650779759008517971809073995125904054237986340320538649832360276740496873886432932714694986368209710667907047207443016131631035772263749783460218631160785461240939178449076749513453145674198840797217516253741535500686635851169480410585150967093780089039658661268908499050727236705345111498789793758056470555686390764221540613813611342885775841
 . . . . . . . . . . . . . . . . . . . . [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)
							ba467ce0d60e6cef300012d3ded86d80b5eff874
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d913000001704ad627ec0000040300473045022100faafa98ae398d636e0f26c27468482f9526b2692767cbefb30df17c78cbef91d0220616228e88111fedf1bb15924ddd955662d8ea1af6ad3ba9c7896471fee11be1800760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001704ad627e90000040300473045022100e3bde3e0a7a63df952a985bf65936f074766f171523afa0fb1e7f290adbac660022053b10d5668baefbff9805147edbffc193766b3b1310a614da77d01d745806800
 . . . . [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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