www.challenge24.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b3:58:01:f3:57:87:95:56:45:c1:b7:49:ad:40:2c:ab:b5 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.challenge24.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b3:58:01:f3:57:87:95:56:45:c1:b7:49:ad:40:2c:ab:b5
Serial Number (int): 322364383665615000871239132917984719055797
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2d:a6:55:a8:a7:6f:86:21:af:70:47:32:26:ff:53:31:52:c0:6f:d1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 23:c9:6a:19:cc:96:e5:c2:13:5a:fa:10:27:5c:e6:30:bc:01:e4:c4
Fingerprint (sha256): 6c:8b:24:fd:3f:9c:f1:43:35:7d:6a:9d:43:62:41:d7:66:b3:0e:9b:29:ed:e9:84:a0:f3:c2:50:9b:a2:5e:3b

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.challenge24.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.challenge24.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.challenge24.com

Other certificates including the domain name challenge24.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.challenge24.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 322364383665615000871239132917984719055797
 . . . . . . . . [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 2020-03-16 12:28:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-14 12:28:37 +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.challenge24.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 898434189820028122580228796978915482609510770887522916875725506579509798139669170782978264123314490306604171748929871184320884146550880940446868922257194776901106395461551881695583697645566663431050492942705013802533933106053782693657655600960538415776343651367326623225414465053879120199780694129778108557816977164967443178720920773558880224572975218834528801600647570071981051191561222508345427281582334063293034250681381521767307215911054378492830363241442588706570392251887216475199027783226904370720856906254860773997120381734990259378743457410947247893191708142015982569261686497257967329353100946752306274875158416055148772279763631116597289380633432869984427129597401093391792542680196566251700167254578424002237591567414596589746910002992814030775514074362391730160672526920141808763341911458679870385399964216227271718154944708366029722992304553123382168555412064143896143421501629056024358254421896454612958534421665891680769562462210450837277057918328112711758271379398705791675482295510357132974344993482601320348106704245209017860721260785288559160798637516117480724563842386959594994186191103411415727058998251499881800756475566861571980903461584558855873276700202037069477274322439137013341376352203315989110970127961
 . . . . . . . . . . . . . . . . . . . . [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)
							2da655a8a76f8621af70473226ff533152c06fd1
 . . . . . . . . . . . . . . . . [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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.challenge24.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)
							00f1007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170e3882c170000040300483046022100b6e91b9676f65f46e2cad399d9af3f4debd6c58e52d9a5d88bcc7c495624fac0022100d2798eefc4aa1a057da541e71d03929a3dabab64c78b374171e325135f9dbcfb00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170e3882c450000040300473045022100da87e59ed078e992212a14ffd675cd5ca063a3fb4cfc0a6d7c23ac104106c1a90220797ad10ee62b0790f586f7ff58e7928c28f7a62adc442a93dd87ab18860407d0
 . . . . [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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