www.cedarlaneapartments.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f3:bf:93:c8:5e:1d:42:f2:cd:83:44:3a:92:bb:f1:73:3d 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.cedarlaneapartments.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f3:bf:93:c8:5e:1d:42:f2:cd:83:44:3a:92:bb:f1:73:3d
Serial Number (int): 344280122835840334120525325479837418222397
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 43:44:a1:4e:e1:f5:5c:df:12:c5:40:9d:62:da:22:bb:e5:71:77:f5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 9d:aa:15:95:f5:a9:0a:e2:83:b2:ff:2b:b2:de:b4:03:23:bd:28:99
Fingerprint (sha256): 55:8c:8a:16:6f:58:3f:27:65:93:a4:18:11:83:db:fc:50:8b:9b:81:24:b0:6a:35:60:84:90:79:76:78:5f:8e

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.cedarlaneapartments.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.cedarlaneapartments.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.cedarlaneapartments.com

Other certificates including the domain name cedarlaneapartments.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.cedarlaneapartments.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 344280122835840334120525325479837418222397
 . . . . . . . . [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 2020-01-21 22:56:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-20 22:56:40 +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.cedarlaneapartments.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 831494257839981888539373030330744068763110788867805177558269093284503928194652189254584528723428187330000657887404609254993986976462504548974376310381462901719368375005089852886314074641832192271932603230312128887188482766899413829164297642067389919247753552686204693295252848613023200078619432881600728275567139110952999430012630391971508701454679069760705902618018739508145468171399174935601205521615790100304843197052512309107272419531166829172792616621707186609953028239476703333335355366089684579112832651709971685122238992814839816827728877745287124493902524807375283831099287004847791653464932479794878532087848265023100487709173203046762475099857047683493939996641748214499499068097176049491077097915895552522840868005404223172596470263764435476064387452477061502836305730692746144929933939726169829038464669127580754212250690336933396140743307264911544135089106433712092875934716554831622501263692543425907035615398578584863927522172246947957116033312595284404746152896501401627578775294970987172645117941358072341913863160973021207510347967959201494752776697980839468509247101909902547143028561128837799729870663627147426316146623467484008067857996189981401929883168176117752274962116189139228145459466200338740263913079027
 . . . . . . . . . . . . . . . . . . . . [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)
							4344a14ee1f55cdf12c5409d62da22bbe57177f5
 . . . . . . . . . . . . . . . . [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 (31 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cedarlaneapartments.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fca8969820000040300483046022100b8c2597493033cb3be140cf50f1c257c062be5eb8f402152469ad306fd07605c02210087314e5fe4d11073172918fda3c025a323eb3fc9ce0876dead9be275e7804256007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fca8969750000040300483046022100a6de154d5b646c15ab833ecf9a124a630b6f37be9020f28ea745b8f393d4a900022100cfb7ea8622b45157249e953731476429d10884e0b1476f6b25f1b95f810bca44
 . . . . [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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