www.krateczka.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:40:25:97:a9:bb:c5:9e:7d:9b:bd:82:af:48:72:89:05:88 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): 04:40:25:97:a9:bb:c5:9e:7d:9b:bd:82:af:48:72:89:05:88
Serial Number (int): 370277184125254778452103670078842937607560
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 37:8d:f0:3e:ed:01:10:22:ac:b0:84:80:bd:69:b8:02:13:07:ca:b4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 00:09:af:ec:49:c8:97:b2:7b:be:53:7a:de:b3:ac:95:39:1f:b0:25
Fingerprint (sha256): 16:65:93:b9:43:95:ef:9b:d4:85:6b:a1:52:f7:9e:b5:da:a9:8e:31:26:87:a5:f5:af:cb:2a:79:12:ea:20:85

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 370277184125254778452103670078842937607560
 . . . . . . . . [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 2019-12-16 14:45:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-15 14:45:29 +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 781193247152856275547341273357579437175298798994147833686204284926191365826355249397642831474286000224283867258254660510195500605252028717324135617412237173308599395496930328261565687819110457434324265057907401633512425918044075123194206470410664744428927519419611479633862141066577616665645134308356723653926586738636236116939580399032345028592144096520577918800291843714698758557566231465788094275210972311568825460031054955739283402180203909375003520691225835859831860057186898585261091057392068063980425690747370862089493680811971505794626963817473617034734345372846413209075820684571750285909147984623860006676235478276780747954171412784596583138814892430791135767419805303403378951197419617485056778127103786135994772830613324836637025422496401716307912760622001627159504460282197971719749180714190441826622052201288522557748411088638990576185835031303921568681202471637194377972173056874914721002137887111474653251241924010193961567092189363198026379451750193529892162766780629055018848936723628867576611480166404783626937322134728992495246496490592572996347567400883034848946294465901971538570525285275637617360643107545849438205386836295543817577155908229139883884001705478932410641103484429269145503352608588611390189411753
 . . . . . . . . . . . . . . . . . . . . [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)
							378df03eed011022acb08480bd69b8021307cab4
 . . . . . . . . . . . . . . . . [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)
							00f0007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f0f62c94f000004030046304402201ad27f6368eb916b6e900fde9860b391c2ca8204594a1b6710a7867081e516670220687225a47dfe271141988e76f32f54c6de5fb4d1d9897cccbed097f5d9b0bf7500770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f0f62c9720000040300483046022100924bf81435875128ca2fb1027708f58151089bc5f1b3ef6adc67810cbb8d3752022100c7eda640046537b9368588b40a6c22756cbfb858c7f963b0269d8537612c3aa1
 . . . . [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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