chat.grade-rc.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:23:9e:36:75:25:c9:17:9c:ad:0c:b7:1e:68:b4:bc:4f:f2 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=chat.grade-rc.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:23:9e:36:75:25:c9:17:9c:ad:0c:b7:1e:68:b4:bc:4f:f2
Serial Number (int): 273457041420913564422123087805010828611570
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 20:ea:4d:02:f7:0e:1f:78:e7:2e:50:10:c6:22:f0:57:a3:31:43:f5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c2:83:39:c3:71:94:20:a8:18:ac:18:7f:a8:5c:7b:df:a2:c5:ef:70
Fingerprint (sha256): 37:6c:72:5d:5f:fa:7f:b8:62:7b:21:a3:42:67:b1:d6:bc:42:28:a1:43:6c:32:bd:81:25:50:40:ec:a2:e5:7b

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 chat.grade-rc.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for chat.grade-rc.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

chat.grade-rc.de

Other certificates including the domain name grade-rc.de

(limited to 100 certificates)
portal.grade-rc.de
portal.grade-rc.de
mail.grade-rc.de
mail.grade-rc.de
grade-rc.de
grade-rc.de
portal.grade-rc.de
grade-rc.de
grade-rc.de
grade-rc.de
mail.grade-rc.de
portal.grade-rc.de
mail.grade-rc.de
gitlab.grade-rc.de
grade-rc.de
chat.grade-rc.de
files.grade-rc.de
files.grade-rc.de
mail.grade-rc.de
grade-rc.de
imbie-rp.grade-rc.de
grade-rc.de
grade-rc.de
files.grade-rc.de
grade-rc.de
portal.grade-rc.de
files.grade-rc.de
grade-rc.de
files.grade-rc.de
grade-rc.de
portal.grade-rc.de
mail.grade-rc.de
files.grade-rc.de
grade-rc.de
grade-rc.de
grade-rc.de
grade-rc.de
files.grade-rc.de
imbie-rp.grade-rc.de
grade-rc.de
mail.grade-rc.de
files.grade-rc.de
portal.grade-rc.de
grade-rc.de
files.grade-rc.de
grade-rc.de
imbie-rp.grade-rc.de
files.grade-rc.de
grade-rc.de
portal.grade-rc.de
files.grade-rc.de
grade-rc.de
mail.grade-rc.de
grade-rc.de
grade-rc.de
grade-rc.de
files.grade-rc.de
imbie-rp.grade-rc.de
grade-rc.de
mail.grade-rc.de
files.grade-rc.de
grade-rc.de
imbie-rp.grade-rc.de
portal.grade-rc.de
grade-rc.de
portal.grade-rc.de
grade-rc.de
grade-rc.de
grade-rc.de

Certificate

The complete raw certificate details for chat.grade-rc.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1mDrUpd7wx84vpe10ipI
6kcuEaOKupmPmbu91Mnb8cuNWTNhDSCIHUwU/VLIt+2Z2huNrU2mbSktrvFkt72A
fDnEyPbcJ5TY7xqxyr8UnX0GRIe+CNs5ua+wM20P59nu0f/sefD/490nYxu4lLWz
50Oy/CKmv88QozwgTr564tQ+z+61/OHxzqFiM1mGwQsZd/jSSykjbmHbKLAwtZH8
Yx6r9HayR8ILlCWyGnBLVKnIxVpW3YcARETbPWB2YxUiqec7lwDpjjxvWUeX8V+E
uArZSaeqLyYrovlVUAa6hO++blZCthPJFn95k+LS7Ly/mn96P54HRHhib00V/YtK
bQIDAQAB
-----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 273457041420913564422123087805010828611570
 . . . . . . . . [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 2020-03-21 16:26:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-19 16:26:49 +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 'chat.grade-rc.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 27062789915812930184172097725701060678618510953109871507124797991336829187692493414356610239117694806498723307310744102480160844475298352363129933085538675616476298383175564652196229051304338262615310522149553913563499531199360377878240908146147943360834490832113540344637235209713416381808435690327716245619434232879136993972445780255874373646703060833608597895057023838512181311096590419898646944338762078121821885697233130283079611568288597541342912857310204170415352931204160001189685659465422518829723297481015120418677926651938643893121320643102880807025302045237094819920689471507436137984905560583952524855917
 . . . . . . . . . . . . . . . . . . . . [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)
							20ea4d02f70e1f78e72e5010c622f057a33143f5
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'chat.grade-rc.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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170fe220ce4000004030047304502203281108e2cea85abe69de17f3859e09903642b380f154ebca989a077ce78bbaf022100c9492b67f6350dcb7a08c66056c633b9efa101cfa55d4d61993c01010ea534cb007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170fe220cd4000004030047304502210089d9c18fd383a5f3a646d45f2b4f02093ac59b85b412b45b6591b5c97c548dc402204e4a47ad1a03480e10501eeac874e0134bcd169d56cf81ba944db8c96535bdc3
 . . . . [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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