www.optiassist.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d6:75:b2:60:48:1e:41:8f:bc:fb:b5:40:eb:3d:3a:36:23 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:d6:75:b2:60:48:1e:41:8f:bc:fb:b5:40:eb:3d:3a:36:23
Serial Number (int): 334313730173534338938326329071695226877475
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 91:37:74:87:9e:b5:0c:39:97:eb:f3:bb:e4:b2:a7:db:b8:cc:44:c8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 02:85:ba:40:1f:8e:16:99:8d:5c:21:d9:27:52:39:1f:53:3e:af:9b
Fingerprint (sha256): 7f:14:0a:d5:fc:f7:95:2f:e9:8f:73:80:31:60:19:17:4c:fe:05:77:b9:0c:01:f9:c5:55:6f:3f:4a:01:ad:7b

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

Other certificates including the domain name optiassist.com

(limited to 100 certificates)

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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEArO72GDYI9MuJugRQd0yM
yUiYpcBbOTIHRrT27qvCsYaHfH/JTd+eD6ZILEGL59Tow3uTz4UJrVymo8jQOC1/
/draH22MY4l9sId90sGMrX3MUYGplcp4BiovmKktq0osd9kmdKr1mg2HxQVybm9p
3GaugD0UFPNK5HoWoWZ8slDZbgVDOCL2QXmiF78MI2+m7SppBBa9hSidWOD0opzZ
NSa/0K9EFQi+jc0c0/dfS4TwiPULeH+rvx9XZW6tZH4k7oxoRsRLUpte8y32VaJo
ST4tGrxhGHpPJoIcZiyv3knVTkx2u7g+eltkUYBkeJKQ0QJzuIbujzHHMRbfdVsq
ZW3vjVt5euOxFljwwvAzzy+moy1oJwziuMKpk+XBnuo9FhJ+bpxg4uNRQPoUmEdE
LAbNGzR12ygLKE8OBC29H2I5D0MZoODKa6f5xn9Y6sGasgDV/EXefMUNbBn+tgw9
h3+gxCozSsAcyqh91+EaKSGsyjGNP/TexzfxBBZNZ0X+ktzYFQB0xezF1PHYT+Eh
nm3heVtTdMqKRXciwGZvTSpVYvejUKXX7BdPPkBduipz3hf+Yw4E+oK1n1W6njqX
YeL+yhb3FhC5n6A3o635nyce+j/BUBQ4hx+LF/0EoeaQiy2sDb0fcdNXEYCK7aea
mykZ2mtKANy6TLJk5zF4BKcCAwEAAQ==
-----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 334313730173534338938326329071695226877475
 . . . . . . . . [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 2019-12-16 12:28:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-15 12:28:53 +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 705506893286610821153861765546788845576828896612794138603381358598667726294916093906252770461742469156706996607471830955233456433037644695832482087848397161064396304614947101381652141044524326330326680473488521532046995280306622119888876666376011494735381150010174647201511844860350926865070491751804600942094393341552029194106461978875541845619350116245811961884947818999828636843279774647435701925199379931479034881305823194067762408101940112643381078853166111732707616105813715126895115410494294419309728029456119549795405047822573198121718952770101432531650094575088425376729458595192910973163830665668397006258686303757971791229637663847328900773058439494297950894967215843974484654616749923931218780958138205740920039881890928111310333519799705327233469596740060010414848534616698933812951089550799195191154948101472066598721757438155392865672293319588659285391839246783222163422721393682640620903798756130259238156385764698710147378779146857194655672973103090252752071387100450579658620763046453982745716258275439241352933927605238467967160638696261788772553461751561983277573907665779920200914017680836359117268129120822371817988775485273038204900067087183551128040821141772766012842066930903762446866606091938325449550595239
 . . . . . . . . . . . . . . . . . . . . [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)
							913774879eb50c3997ebf3bbe4b2a7dbb8cc44c8
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f0ee5b9c50000040300473045022017b246f6de1da825009f3e70b7a2de2a1fc46b1094613c83e5726679ed1b530f022100b4326258379623ea20c005e007a49285249ff2047616c8e47ad0779d080ff013007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f0ee5b9bc00000403004830460221009b6dc4b5bf7998c5de15d00373e9366f448dab3e5df5a5a83641a39eea622b8c0221008fc17e98c0400ac2dbcc70cbc64cbfff71ab576d7f8f29430789628d9e74f4f3
 . . . . [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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