caslin2013.techlib.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3a:dd:c1:2b:70:dc:28:dc:9f:5a:1d:fd:8c:01:4b:d1:e8 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=caslin2013.techlib.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:3a:dd:c1:2b:70:dc:28:dc:9f:5a:1d:fd:8c:01:4b:d1:e8
Serial Number (int): 281367997458142637710064540189306468946408
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 48:21:81:7e:a0:9b:bb:0a:05:8e:77:fb:e4:3b:2c:0d:9c:af:a2:26
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d1:0a:91:34:7b:63:8d:92:61:67:1c:49:da:74:a0:b6:12:59:79:f3
Fingerprint (sha256): 1a:32:da:23:fa:c2:10:45:32:63:a4:4f:50:7d:26:49:78:1d:13:fb:46:0d:42:b2:aa:a4:3b:bc:1d:16:9f:3c

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 caslin2013.techlib.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for caslin2013.techlib.cz

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

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

caslin2013.techlib.cz

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rs.techlib.cz
elag2011.techlib.cz
eod2013.techlib.cz
blog.techlib.cz
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techlib.cz

Certificate

The complete raw certificate details for caslin2013.techlib.cz 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 281367997458142637710064540189306468946408
 . . . . . . . . [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 2017-03-31 21:02:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-06-29 21:02:00 +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 'caslin2013.techlib.cz'
 . . . . . . . . [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 697878769306765587395238000716654450288338668525757169659653278725451605817198310623016108745883591540744663601611558823326160999343661721206338277899378209602169203211565956086504515739590089004864585378019610460475004464092430050679759522287389458021659569201407667737777547341573557442849764803971098594550876370731078471576453726531838556253935729128130988291425080530786138139797014757684943466232108501572286630418288852924311780892989889943216828599782153640169035152976009687134398786441561072868064517857141165095218333356303230178546096129073589081231588410313267699629906984981815403188604801534084593992831697086496095307142386515288637377510226506450796366805401169022093430350059134531217339929245818708630944069116115502275077537069810866711443134990024647259348859474314260965385191204460240929848809485587343159443280977581642416732143369081175153888376875158518945785907667413472793941967243604285955825548521653198977325971327284107065514575188071784253601061367275127450463390955558960941233229696500542038545159064813958938415469110574394495368688460332120148649875161223638210814185009059491586005858471501400815896161672154987008170044508141726239121538530362746816362352403382831692534767819677565562181894307
 . . . . . . . . . . . . . . . . . . . . [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)
							4821817ea09bbb0a058e77fbe43b2c0d9cafa226
 . . . . . . . . . . . . . . . . [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 (100 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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'caslin2013.techlib.cz'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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