www.blog.cf-ekm.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:99:26:a3:3d:19:3a:17:5b:bd:98:21:91:f5:53:c3:58:34 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.blog.cf-ekm.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:99:26:a3:3d:19:3a:17:5b:bd:98:21:91:f5:53:c3:58:34
Serial Number (int): 400563704113398007731170448311981158127668
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e0:a1:38:ea:ef:e7:b8:34:4f:16:b1:47:8f:88:31:6b:0f:ee:cb:dd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 28:d5:a6:1b:6f:cc:f8:45:8c:33:87:6c:07:d7:9c:62:f6:f0:a8:f8
Fingerprint (sha256): 8b:01:7e:f6:b8:92:b3:95:3c:a2:29:ef:88:10:92:da:2d:dc:49:51:eb:50:7c:42:88:d3:b1:1d:24:3c:35:a6

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.blog.cf-ekm.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.blog.cf-ekm.de

Public Key Algorithm

RSA

Key Size

2048

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.blog.cf-ekm.de

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Certificate

The complete raw certificate details for www.blog.cf-ekm.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4bHesLx9+xzO79ZLSCDr
hBrA7l6JIXG63KoaynuDO76kvb4EmAD0qOLaAmcDJt3uDncm/B3YYaUH+Hs0Y6k3
kBRJrnuZYQaGj8mH4qFnkMN8H/el499rLsUQ54Q1yIqtO4qKShiRWNWT1ocOjgUM
BM6afRVR6fgVpvrQ13lCvEpEPOs3N7JSpP9KX8fmrnr2aBrecfGB1iwdmMiBfJH/
1/YjdYTgcOtTm60tQL6e424JsYLTFOYraWv/obgnvqq5SAatyiXhscveU8rhzu/U
K+0/2LxFjmiN78LQrtGxymsvYQweSDkPq3RS/fgU4cCJg92bQPa8iwUUAQDOK9I+
DQIDAQAB
-----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 400563704113398007731170448311981158127668
 . . . . . . . . [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 2019-06-24 02:56:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-22 02:56:35 +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.blog.cf-ekm.de'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 28491329526332930554298403083011764809484469868885465264564451909688798552459195608723116547849196875094704315715553806920661569917127047263254566694535061151820061095124040221658202149399372657033469742699906906183149576279182314343241697933650997707854693785389431757354701523726047486120562040573318124831563894083080051267191418170301027829775907863987490526901619071206597972658676461151464451266843851521040932176326287076724190240314276396105331457208540230116363214910583289530828324135777739362740599643127459434257590895958053365784782976602082356619046000360823381228107073710557903763062690157529949945357
 . . . . . . . . . . . . . . . . . . . . [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)
							e0a138eaefe7b8344f16b1478f88316b0feecbdd
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.blog.cf-ekm.de'
 . . . . . . . . . . . . . . . . [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)
							00f1007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b87a0e08b000004030047304502207470e8acebde9b3ca456573e7e861a0b385487fe616816365c137c743197f72a022100da82582a0b93b1d11b49b726c6d59b15749f1304c3abcf4b26ab2d58d7761364007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016b87a0e27000000403004830460221009e878c9d45133eaea4585328270926e7ec79ae40f9929057fcf0c3e4da5373e3022100886cf558ad362d5e7238d0feb64c707369a3f3df0bd6acfb16a3e2b1b257d395
 . . . . [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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