www.iowaoptometry.org

Issued by R3

About this certificate

This digital certificate with serial number 04:fd:c8:e9:53:3b:c0:4a:23:1d:da:63:01:17:47:21:49:cc 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.iowaoptometry.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:fd:c8:e9:53:3b:c0:4a:23:1d:da:63:01:17:47:21:49:cc
Serial Number (int): 434807639650537409071807692450761430616524
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 24:ea:f3:ff:d9:2f:06:43:5c:c0:e5:5c:b6:c1:90:7c:2d:42:e4:ea
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 60:cf:5d:f6:a4:b7:84:b2:3d:86:b5:a6:f6:66:c7:84:39:d9:5e:c6
Fingerprint (sha256): b1:87:6f:be:e3:6f:c1:4f:fd:78:71:fa:2a:ba:7f:86:b3:f8:66:e9:1b:7b:50:8e:da:64:81:0e:0f:f4:02:f3

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.iowaoptometry.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.iowaoptometry.org

Public Key Algorithm

RSA

Key Size

2048

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.iowaoptometry.org

Other certificates including the domain name iowaoptometry.org

(limited to 100 certificates)
eyeknow.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
www.iowaoptometry.org
www.iowaoptometry.org
eyeknow.iowaoptometry.org
eyeknow.iowaoptometry.org

Certificate

The complete raw certificate details for www.iowaoptometry.org in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxVDJYQ7rNguDUXznS7RQ
pokLkHP0Jh6OQxXqfaYtaf5U7Shvjm1vBYMVw0SHof5p6FQsywcW9j/CAYQ38I4r
8xud4djBip2CRDgMKzOvPUkQTYm4VtRy8c8IdE2HhIqJ/7/enRKWJ9SZkh14K959
9kTbWLICjsf7vwEUhkllAl/+6DyM8pu+Hw6CwDqdAh9o4vlvR6UEqwZQgWaJ/EQ2
ZKPQ24kVRHW3KAa9ng4ioCki6f+ooD/SrCRxL+OgBfRViqDx8y3dVmrH8u7SZBnV
aVfyQ+4dMkd7+V8tN/cIgzzTPrNocEuNdFptEgTZRZWtbooHICIjhmKRIqntwNDQ
NwIDAQAB
-----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 434807639650537409071807692450761430616524
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-09-14 03:32:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-12-13 03:32:26 +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.iowaoptometry.org'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 24908783453896785750283833365605688594795500119420447984806303924569686500465995603927268212192324560891261540770843013057180540725988166767639716381477022138514602342996200720486085041439619204925341247144253761363559672906267466824193030372527334891232585169714536932357872691473303700773193925826250910234282721303958872593258857344892034933689737147323232599771506852085940454343613462963486673631580293098334786607430409220825829889811348955450742927748959602439650874387666631753344000361159850147623385567893108876195058532602660379281712628033665267764402448307884291232981334681396096514066472646514142400567
 . . . . . . . . . . . . . . . . . . . . [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)
							24eaf3ffd92f06435cc0e55cb6c1907c2d42e4ea
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.iowaoptometry.org'
 . . . . . . . . . . . . . . . . [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)
							00f1007700dfa55eab68824f1f6cadeeb85f4e3e5aeacda212a46a5e8e3b12c020445c2a73000001833a450f880000040300483046022100be324f7acd20a2a51d158832dd02894e33c952b7b60f4e581c7a2df9c211de1b022100a0363e3129a974a451df631f8cd08b833c478fe45a51a0c81874369c0c544ea100760046a555eb75fa912030b5a28969f4f37d112c4174befd49b885abf2fc70fe6d47000001833a450f860000040300473045022100f97441781a729abb78bdb3959dd562ba3dfcca9cb918a19e701d1667bef7ec5d02205229b032a91ef93c1224f9b3252b59fc0a03e90f3ba6b060420ce91d6f4cede8
 . . . . [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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