www.spfau.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:5d:05:56:d8:f7:86:e1:c9:22:53:cf:ca:40:53:e8:a9:4b 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=www.spfau.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5d:05:56:d8:f7:86:e1:c9:22:53:cf:ca:40:53:e8:a9:4b
Serial Number (int): 292990214997048350095744577769030982084939
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b1:e7:f7:d7:d7:1a:2e:40:b0:18:1e:9f:89:08:e7:55:a9:7b:a3:57
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 95:8d:74:3f:ce:a9:07:d7:c3:06:6a:63:01:db:db:99:1e:cc:a6:31
Fingerprint (sha256): 01:07:65:58:c7:85:b2:50:6e:c2:cc:96:d0:2a:8a:59:db:f2:a6:a1:66:11:8d:a4:4c:d7:e5:29:f5:92:a8:03

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.spfau.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.spfau.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

spfau.de
www.spfau.de

Other certificates including the domain name spfau.de

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.spfau.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtYteucbe+zox+2FkTxIL
5ut5sxIigkiGLdMaxn6V2n2+pDnml+2aPLmxssfIx0HGV2GJBFVtMt/PU9PssiGk
LQ65fkdazsuE2ZIPEy0MqwqqgOx7CPiJh+xTGixB2iwkpfqjfAYEGufrEDwls9pu
K+QCKJxDHHVT6arWOrXX+FCnin9GmXEWEBQ4Ro1heDvy3Rz8ygYsk0syk9QxZMHs
Vtm3eFrEKOy4ErFDvS0alBaClWr4Vfd3uE/jGk5XSWfGGVXQtCQ6qwX25Z/mCk8K
JBaagMgw+OgZyz4EmL/RlWlxbXH4AaIE2t366LOhak46S48cU2tJ77EBPRGohHIF
pwIDAQAB
-----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 292990214997048350095744577769030982084939
 . . . . . . . . [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 2019-09-17 17:13:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-16 17:13:22 +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.spfau.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 22917859118268127312660155189392060474222917960589793436300772497392462793662327284979314593358485638223229384731224636793892195785760407333463737150208604801342115360643887352597983093648214737353600299256004943528607455816504820456222683039616731074773711494697790974563309488944129767129886067596051244507684841934147187151531202981962614630457326674333374787376971070167692151582889368525900054383811766639500107286157360956688592873323555621109500757319567379318405561049744108317720479526495754799359541450231159626192977099224934340770378422430857931576427837651067545574122734669153951416599515519380112934311
 . . . . . . . . . . . . . . . . . . . . [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)
							b1e7f7d7d71a2e40b0181e9f8908e755a97ba357
 . . . . . . . . . . . . . . . . [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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'spfau.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.spfau.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d406dd76f000004030046304402203e6a978cd946453e7288dc6606975bfd61cfa8a18074fb2ef22a38adafd536c1022059a5e952f5f052a6bf563c9e7d15423ebe84d883fdbcc639457e7056bbfc938400760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d406dd59b00000403004730450220760d76c53863496aa2d6358d9838be71c53ff72cd350feb2d12f3fda33fdbcbd022100a9054a0a6d202b95a2f2d301c9faf01697224d2b5e7334cacc9070d772a3f64e
 . . . . [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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