www.krateczka.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e6:4c:52:17:07:28:02:3f:dc:3a:81:1c:2c:5c:7c:55:cb 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:e6:4c:52:17:07:28:02:3f:dc:3a:81:1c:2c:5c:7c:55:cb
Serial Number (int): 339703249750181040140058437998840706258379
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 9a:54:ef:b4:d1:e8:94:79:cb:df:cc:f1:aa:bb:bd:1f:13:97:30:a1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 24:34:d2:13:d8:18:fb:b1:03:bd:3d:1a:11:b6:bb:38:38:65:cd:93
Fingerprint (sha256): 97:05:49:45:4a:bd:fc:cd:a6:33:6d:13:26:8d:ea:a9:53:63:89:02:21:10:9e:8b:47:16:a6:eb:db:7b:c0:17

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 339703249750181040140058437998840706258379
 . . . . . . . . [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 2020-02-15 06:09:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-15 06:09:15 +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 955567888560572971047558187051504867651391478643436691794189418044989587993855036243185793657179922605512987332387217402417667272560159158128764722724756923753261007341081273874078456721534985046611967121491106886667306597271739738195307557004486367233583638374386619670188111336097990005204867391212188435358197690322695384506834570021875193027963718990995679205676719100984905425196082846231736443352459865114593597673992339718552862715468630284775527610334855139369191744653561843566362910531288925357820049987297048624329619431265994569398248554443048770383285300854086167674106501243620686190575506039351513964795414783503895364398928620143177075659931827805536757581458218328905338578528168294691283150992504918683686208785103062910567303421804123000469130920967505791850610387122054735274780116378724190152867118594052800238596326669183358875081608900097556122452437160907358187177792284262288871514266441092559920535200215219239361243892225958848646209954019348657864161114237708903523648560795621738639726435303793332250196706394354188448167289191231932415624520192180892912761369171766728553564456069479090462592408740574871953267723152995980975948308804388267401287043249846647826240921457321359258643113599648473192263361
 . . . . . . . . . . . . . . . . . . . . [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)
							9a54efb4d1e89479cbdfccf1aabbbd1f139730a1
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017047ae146e00000403004830460221009fd91fa34bc14b21f03e2b303978cf64e9891653c26ec1964daa1b224d2b9c79022100868eef28847e1a51b007602c371c424695fcc6d4921dc93067b7f29eb8787c390076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000017047ae15280000040300473045022100c73f2d47ad5153e95def762b17279aeb46bb8add8339ed6859dd7ed708a4ffe00220730456b800bbede532ff0c70238add1edd8d3a7dfda999e578323033c586cf6f
 . . . . [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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