www.iowaoptometry.org

Issued by R3

About this certificate

This digital certificate with serial number 04:30:cb:01:ed:93:d0:cc:f0:6e:cd:37:df:f4:5e:a3:b4:d6 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): 04:30:cb:01:ed:93:d0:cc:f0:6e:cd:37:df:f4:5e:a3:b4:d6
Serial Number (int): 365052540633329465883129355061949720933590
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8e:01:95:2b:f9:db:75:c1:23:82:29:d8:70:1d:43:30:d0:01:29:74
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ec:dd:86:fe:21:7e:ef:32:52:e1:19:94:f6:8c:42:f0:79:2e:1c:06
Fingerprint (sha256): 2d:00:e9:a5:7b:7a:af:e5:fa:81:5c:df:e7:bf:c5:70:15:25:fd:af:86:15:e1:a2:35:a7:b3:02:69:4f:88:6d

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAq3z+sEUk62lCers7Igkq
vxtpdEzyVfBVoLLRguE65pez3uQvNJEDWPu5w0pqwTqCi4VXRZH2kDpHovpYuHgj
eSFueDD1aoj/U0dENKzUDVPGrtHCogLfEVRz222WFwzxYkwvgHl3EnrbCL1S465w
/CIH3Gmy8LKtxP6J6AoezIqbgvZ7GbyIMWBSsWpZy9AXy3w28xBTSEzsnf8qTe+g
pTAeZz9PfK2Ok+64rMCnaQ0oPDLqrw1IB//rTleWaaZux2G+KUan4g7hTVPAOpgj
CaoKHSxWpr0T9x5c+FSDXn80lS2HBZG8FY60yeIHpmLtS+mN9TPfSeJ66g00PNnQ
yQIDAQAB
-----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 365052540633329465883129355061949720933590
 . . . . . . . . [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 2023-09-14 02:56:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-13 02:56:51 +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 21648387420380216580821471815186260665330773360402422350518943099444617394192031852033383397483072752139223212425848797807240512349319896108124636702617977037821683160119023187008987337202695530881540421511287957579275203596445702563639975189995104439919378114722333670451557053445760351529029008059555980554165036669122427257146407292441866324483748395011958879529918199443252823857463002596528958443182014452994951015609678298393373091694863435448931842453070259729198440242989800327537634012972801920900697547462881467564040385039566340308505975269483912356827322211364193709328326255980177901924431428388285698249
 . . . . . . . . . . . . . . . . . . . . [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)
							8e01952bf9db75c1238229d8701d4330d0012974
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a91d5a85000000403004730450220399035a5381fe444f6ed75bca2941be8fc19fb04382cc749d561d4da2a6d4851022100cfd09934088a2df68ae7d514355bc83bb832e8f4f7b11babaebf94ceed17b6fa007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a91d5a88c000004030047304502206e788bb4259337d2297428a341d5a884292ea687546ac0efbc29a047efab4ffc022100dac5c1f6ed0001ac0109c9461e9df45b46b6d3354d2fadbbc46d33f9cd8e95b4
 . . . . [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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