www.krateczka.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:c2:fe:9d:ec:8d:e5:85:8c:68:36:69:72:e4:ef:8c:79:af 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.krateczka.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:c2:fe:9d:ec:8d:e5:85:8c:68:36:69:72:e4:ef:8c:79:af
Serial Number (int): 327690080877369831345163896825949448862127
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cc:0d:17:7d:4e:15:fd:6e:b7:07:65:3b:84:2f:8a:c5:28:33:34:a3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 57:b3:15:18:e4:dc:73:c4:f3:d2:f7:95:a3:f0:5e:30:6e:44:53:86
Fingerprint (sha256): 8e:52:0a:04:73:3d:75:2d:c3:7b:80:7d:13:03:d9:ec:95:2b:7f:e9:fc:3e:2b:32:df:c5:df:fd:3e:be:0a:b9

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.krateczka.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.krateczka.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.krateczka.com

Other certificates including the domain name krateczka.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.krateczka.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 327690080877369831345163896825949448862127
 . . . . . . . . [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 2019-07-27 19:00:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-25 19:00:13 +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.krateczka.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 835871052442388108937790415127703433618746521666003839393181720169750749982361660933073894641187142873883667351667596255474527267645070229753225528577994417574724929663508394330109342631125364090940978567274757979544206244190682154824107635303233997128117128421294774995178190877687687683885565233790375388936555078434743168284087487054475830505391789079680000465604025950793598533583523126052940280621724341594535416169807251260992925860709413985218214025346385357682432754529461712869882452841956723515133934810829010515075394081017332297816514320355295426763533730153256032493798767024362671074851728574926591431506268702155164362993336904556160630891103324788977451091430057915335022849181558970356932616351493512941515925933247794640163503387540395129523685284333722462153743995824396963156951558240463811708534699489846043175973351168272431750341798832436381338174461356609871244437400173498540755587757556500143868817690105011664061221125818200283209875942919715421016750129187919705538633146967356259886177308235875958666838044548729252135339290128905028728358113380276778948668441071902718305541077348575099273813934228941877885674539811265221414596361080454241453610136064479005527764505696164591698095008376806186735571871
 . . . . . . . . . . . . . . . . . . . . [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)
							cc0d177d4e15fd6eb707653b842f8ac5283334a3
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.krateczka.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c3504f5e800000403004730450220658c95d1df2c10fd3bcab8100ecf7de9a3bef6772b7510730c5beba4ac14f0c202210091bf36bcdd8435b65c2db3a00e21fbfcf65869c4d28db5e02f2ba044e26f98df007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c3504f5d700000403004730450220056f45a1eb44a550f4d8e6f91785c22da42bf9c44a24a5a22f00c0396b165ef7022100c806fdd175009a520049f460eae759005c5625e409a51c12dbeb3d7b22a5db04
 . . . . [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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