siekmann-ingenieure.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b7:4b:9e:64:8c:6a:1d:06:42:5a:c6:ed:c9:90:01:58:87 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=siekmann-ingenieure.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b7:4b:9e:64:8c:6a:1d:06:42:5a:c6:ed:c9:90:01:58:87
Serial Number (int): 323709045463765739563514451257946250762375
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2e:90:be:f3:97:17:e9:70:33:86:90:0f:bd:9b:e4:17:f6:6d:e2:e2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d2:f0:71:8c:57:4b:6a:6b:a1:85:db:bd:26:59:8b:c5:fb:c8:8d:2c
Fingerprint (sha256): ec:68:3f:61:49:2c:3c:4a:60:47:d0:7a:39:65:9a:98:5e:1b:ba:98:23:a7:58:2d:c7:ad:5f:bc:99:56:f8:0c

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 siekmann-ingenieure.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for siekmann-ingenieure.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

siekmann-ingenieure.de
www.siekmann-ingenieure.de

Other certificates including the domain name siekmann-ingenieure.de

(limited to 100 certificates)
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
mail.siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de
siekmann-ingenieure.de

Certificate

The complete raw certificate details for siekmann-ingenieure.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAk5BzNWWSlJQkWk+2Uhun
8e4qBtdpNyHscf8w4F3qOkHmst18btAq0jwP344G/JkXJqSaiYtpG1cE+WtxWLOa
WdGizOa2/ssL2LC8AwElF1OMpNs+GYzYeUt3dHbVJ+EJI1N/iDdcqLbV5MeTJu//
8ZZfGKOYo2JrrlvxnBVcMCYyDqtZpDApmukxpN8bTFjy/xeqYavcSf4shfH4v9ex
4l+vJGhoNGnvJL7uPdWyHzw6jhPSajieVzG72D3p2i6jZji5DRRTTo5R+E7O14Tc
ZAZSR930o6540p6Vj3gErjcE/hM9eN/LihZFUK94i/C6f1dPPp7BOeVEB7I77qxi
aQIDAQAB
-----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 323709045463765739563514451257946250762375
 . . . . . . . . [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 2018-12-29 23:12:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-29 23:12:24 +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 'siekmann-ingenieure.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 18628261796353810452283307739794630171954212754008870569968658046643008732140180686295953430804084021982964542688564706293745403388225025094743529548262955260264695064914778094789822240933838664043638798597854111176558279717534693387702420001088630507685921669796630595514272150092645474408063149253733960594923934549095815083674935134762662958252076308493348480679153863095221622955194992059326541143860989433694227372799988220915222607020782686335896295911988003443876328989698647572561844034420817666033956665424545401123097723745753317586708653932449298101220000208111182323487109431270555257340953792254990639721
 . . . . . . . . . . . . . . . . . . . . [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)
							2e90bef39717e9703386900fbd9be417f66de2e2
 . . . . . . . . . . . . . . . . [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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'siekmann-ingenieure.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.siekmann-ingenieure.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000167fc745f2d0000040300473045022100d2ff95d1c63ff85f616bb2a555974167ec3a47503671e3de8b22dc323692cb0202207c91ab5363a06fde86c699822221e23fe182cdc03498ee052f06506015cccd9700760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000167fc745f470000040300473045022028895c96d3be17214fd387c301ca5db9a7a56074509453d4c57151e7c0329286022100e6ccde32aa0abb4abeb00e4991e04129aea15602a51e32440799a7d989fd7665
 . . . . [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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