aisci-erfurt.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:64:a5:8a:73:5d:e7:2e:19:2c:43:c1:b9:db:e7:70:e5:db was issued on by Let's Encrypt.

With 9 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=aisci-erfurt.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:64:a5:8a:73:5d:e7:2e:19:2c:43:c1:b9:db:e7:70:e5:db
Serial Number (int): 295585135983562445511951840956974971807195
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ed:39:82:c3:a9:e0:fa:a7:21:72:f0:8f:df:08:47:37:20:66:44:d2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3f:12:b1:98:2d:39:3a:b9:25:2d:c4:8d:ac:40:ec:ce:bf:83:f6:1e
Fingerprint (sha256): a8:65:b3:15:8d:6b:a3:f5:51:a4:3b:ff:4b:c2:ff:54:94:8a:1b:b1:d8:0e:7b:6c:7b:1c:83:de:a1:30:43:de

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 aisci-erfurt.de

9

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for aisci-erfurt.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

aisci-erfurt.api.itool4.net
aisci-erfurt.b01.itool4.net
aisci-erfurt.cron.itool4.net
aisci-erfurt.de
aisci-erfurt.f01.itool4.net
api.aisci-erfurt.de
backend.aisci-erfurt.de
cron.aisci-erfurt.de
www.aisci-erfurt.de

Other certificates including the domain name aisci-erfurt.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for aisci-erfurt.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3aR9XOtOjP5SOeuBI8Hm
Zys5Tcww5Omreu7vsxvOkOTj41HjgGF5Qf2MiChEdmpZBk6dhLTlMvgWCFutU2Gd
8ISHzq8ZLfVBfU/jqeJq7H80XCwwG7QJmynUP7jo094g14TAY42xl98OKTMPt96t
sw3/PxSWKJR6LF+q746lPKIEG3w3OFzyob/dtthGr5MlOTAQ1fNtlshT3K/Zinhh
7qm315K9RYtjcPm047JDxNytFx2X8890WSjQUQWdcjPQIiCBS16yogT3lr8ngqdS
fp7U17mf/2/tAxjN4kcRoPVKHehdeftLd7rYXF0xN1N1uJJlTIfbMfseodcScHfj
vQIDAQAB
-----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 295585135983562445511951840956974971807195
 . . . . . . . . [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 2020-03-04 08:47:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-02 08:47:11 +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 'aisci-erfurt.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 27979778291236213180231874103231093287869854297397378490770989201506570690758504574334086335578597513105758637218406663750412791006276397879697122038186758546695074786291102320069439542620556182962121925975089250898540737505597585199883129143755399779031895727855949348029001758994494511231102602218922452331737395523788477556133388363235869411604206748980371251664494066597863987713133181361564762556224106116638720946131357507071646915786042210748325001271844151057282666055175677121386473682959701986823522078466254333922970509230770530806713763682073999494784423807784728673459074492730816738306315275625523831741
 . . . . . . . . . . . . . . . . . . . . [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)
							ed3982c3a9e0faa72172f08fdf084737206644d2
 . . . . . . . . . . . . . . . . [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 (226 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aisci-erfurt.api.itool4.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aisci-erfurt.b01.itool4.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aisci-erfurt.cron.itool4.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aisci-erfurt.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'aisci-erfurt.f01.itool4.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'api.aisci-erfurt.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'backend.aisci-erfurt.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cron.aisci-erfurt.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.aisci-erfurt.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)
							00f1007700e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170a4f121ac0000040300483046022100d9fe8df437fd11d5f86c71c81e96ace6fc340bd19dda0987bdbe8deed8ad8524022100fbaf228a544f8634162d10ef44d5ea59f78343db8082dbc80219eb7b452b871d00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170a4f121e10000040300473045022018d3fa918aae0a81cb833b94fb8d3e65ee85fd1c24e032abd6972c517e16327c0221009a243b2f00aefe809fde201e10b59c40d4f96c078b7bd7e67d539dbdd3bed11e
 . . . . [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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