www.challenge24.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:47:91:68:48:aa:03:4d:5a:7a:12:96:7c:c7:04:96:53:29 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): 03:47:91:68:48:aa:03:4d:5a:7a:12:96:7c:c7:04:96:53:29
Serial Number (int): 285690185378732772329343322737763650261801
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 11:db:6c:2a:df:9c:1f:f5:0a:64:61:ac:d6:22:35:81:e2:d0:2b:71
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8d:7b:30:fa:16:7a:f8:e2:aa:d7:43:c6:13:f0:d2:da:33:3b:cd:b0
Fingerprint (sha256): 05:77:98:c7:2c:3b:1c:1a:13:c1:f5:1c:18:45:7f:8a:a8:48:93:1c:9b:34:a2:07:75:a3:d6:59:b4:cf:18:5a

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 285690185378732772329343322737763650261801
 . . . . . . . . [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 2020-01-15 17:16:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-14 17:16:09 +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 834064397502553282214553954567731490873820536057719031229983766549948464524107804922018723024525186877108556404948765912393506458667614125935434090010970631756098374559487886213448957544677020983498497008607481583481056918178299182059022997497548433125063836331643950394455062931095617186417167196556217208008791724783195531061844092724983816419479406653999705751387945089307779621762580132428309294864473257767317091392007964813612554190599633380526030533547316783032955045439071033865574410154343561484311975073016844688069635081332618839916907697606223293703441492284874799006129896430128481652578560409699410353154836214901980595620229221847912568034566536430097134797351529057235863030389539775812132233951906803144904666731928940233856431510030437209642722299562596509470962124607720657462135493751984166265156556074710203141564111361932223811465964630755562255746362621384841024135089482829183347611575027788275744321847970929022738622355178508764639609119954403756607873556986969625111269760771080924356535610628818275202786615918351894802916283505407801604045833439422416202193250677058964615962969316944069771015299153995394038000532382874580110339740044248972877101880048607909255171036344536634972584050888896623646144419
 . . . . . . . . . . . . . . . . . . . . [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)
							11db6c2adf9c1ff50a6461acd6223581e2d02b71
 . . . . . . . . . . . . . . . . [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)
							00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016faa6b808b0000040300483046022100ef6d5a03db004b5d823029344ee1347856128beaac30d75734615e30d61adb20022100b5c190ee4e1e4e86a3e8d2b37785075cf5ae1b64b9d95ad7bc9c9dc0de99067500760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016faa6b80820000040300473045022100e1193c46e7655361ec97c7cc96800d0d5a41dbd1e007167d57ddb78cf215f69202205959a129204b65ff962569a98a93a79ee3b6af5cb03a447bd8c8a6393855a416
 . . . . [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)
		003dbe6024b0d7315d2590fd7b4b4899350b14918c20e9ec4297a4d133fd018b399a3dc474c70bbd0cdc3480db5d33937e030f6366b22e9d78ecee4bf2d81ae24b4e4aa8f8bb0cfeca7043c2559a98f3fc3f862ad2c19c01abbb4162591966b540f9b3178bdaa4ef4021bb3d5ddac73b116f57b43cd6f01130f328839e0844e06a1aa8660506cc39448d83badce52a69e527fdc5e6d3458ce7da80f77fa4198b23d70208cc454a2b3fe5f288efb6b96ebccaf78db4a9091c36962eb2c7f8d6fca181f3d5c50993bb84c2b10f4de69a2283a56acc8e3abfdb5c058a876a332f79a6aab1cc056c58ae09befe0179ac1c1dca76a4ed990621cd6f0938cc0a37ee372b