groupware.zer0.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:02:1e:f1:d2:58:1b:b4:4b:2c:00:29:f4:bb:40:a5:05:bf 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=groupware.zer0.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:02:1e:f1:d2:58:1b:b4:4b:2c:00:29:f4:bb:40:a5:05:bf
Serial Number (int): 262058554978825740361451950235172666148287
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6b:27:dc:d4:b2:e9:f5:f2:50:f4:df:83:c2:79:8d:b2:db:77:dc:8e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fa:2a:29:80:41:e0:ba:bb:62:48:ca:30:3c:e6:74:46:96:0a:cd:1e
Fingerprint (sha256): 0e:ef:41:ad:8e:c6:68:38:5a:6a:86:d9:67:94:bb:6f:37:0c:eb:bf:f7:c3:fd:30:8a:61:35:24:f3:e0:dd:c7

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 groupware.zer0.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for groupware.zer0.de

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

groupware.zer0.de

Other certificates including the domain name zer0.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for groupware.zer0.de 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 262058554978825740361451950235172666148287
 . . . . . . . . [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 2017-03-11 03:20:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-06-09 03:20:00 +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 'groupware.zer0.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 756442204873449928294583139892044509196143954620564535448097272778493957621983075735176506787461182054604492626335676256947567200765939030028173052965030184464454019502267995894508343578754636507435490522903949020900557937978799070592565868120837928251480751088199906271189001914308584399677684509588128343089212130369620245766762777485932041863124312513727906198984134142890283068715999211863422548047596379110299897163810947049119806633963754247572744634261669127961027040909840124409961545012596235395428487711405138873798679455052171737996968056601610602852130935516052964798108342468403897981015896555980178821730722707148751324809222884826962810901763178233048806660309834958656522232720563012656841226190013339396214153188036428066903086435529855950120678218357483838754700504346492971025162970908717633231968477863629379805214004359618303941864075026049729735662594326868851061190466057219416912241446358516644200887092414912960035414340626007284735565130366441997843070020141354774967501498020150224203099089699061343394146025613574719739328528111189927140692339446379133395120190399542736115720571762083614914476015270778569456819693434437841333134307066103254835303266706714650953719990780821025237216715836094529318006459
 . . . . . . . . . . . . . . . . . . . . [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)
							6b27dcd4b2e9f5f250f4df83c2798db2db77dc8e
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'groupware.zer0.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 (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)
		0014ed916a7ce2138ec936a0b607f977e43b0385882cc023e0de62dbd970671146214e6209de24d928eb5249c057a9a9d3ec496634f74903f17978b3f7294919cd0a4bbc1f9837efc40055a725df489bc9242fa35c4e1d9a089dcf9bf9509630b26df35b9adce277bb78441d790ad757ae7818598bd1c0c5ac5aeb1bd57eb27d82cb81ca0fa704338f0f4e2d2e1f7bc02093f8def9e26c57bfe2fab481f7f107c55b42d742c378160e8e74258f827bd91cd3703192a91e2898325f218371c1160803b331a36011f8292ce70a8300f8d09da9c166396783a4dcc7c291619db322717ab7fe8253a9c9921334e856510003ed7b0e1e21c211f0335b2aa9bd1f670fde