email.zu.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:6d:6c:71:4a:a0:e2:82:36:7e:5a:8d:3d:1d:31:40:b1:7a 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=email.zu.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6d:6c:71:4a:a0:e2:82:36:7e:5a:8d:3d:1d:31:40:b1:7a
Serial Number (int): 298571780656397735509595849867523304501626
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 80:b7:f0:a3:3b:a1:3d:fa:a5:31:e8:b3:58:91:11:72:d2:98:b2:c5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): bb:3b:b1:40:09:9c:41:bb:ee:7e:03:50:97:a5:62:52:9b:0c:8e:0d
Fingerprint (sha256): 2f:1c:5c:08:09:3f:3d:2b:da:1e:dd:cf:94:97:8a:94:8f:66:3d:26:cd:e6:04:ff:2f:dd:a9:84:f1:65:a3:77

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 email.zu.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for email.zu.de

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

email.zu.de

Other certificates including the domain name zu.de

(limited to 100 certificates)
repro.zu.de
opus4.bsz-bw.de
opus4.bsz-bw.de
ezproxy.zu.de
connect.zu.de
ts.zu.de
radsec.zu.de
ezproxy.zu.de
learning.zu.de
helpdesk.zu.de
repos.bsz-bw.de
email.zu.de
email.zu.de
www.zu.de
dms.zu.de
zucoyo.zu.de
cms.zu.de
cms.zu.de
cms.zu.de
repos.bsz-bw.de
app.zu.de
email.zu.de
email.zu.de
email.zu.de
navweb.zu.de
repos.bsz-bw.de
email.zu.de
cards.jonathanmuth.com
svp.zu.de
*.pbx.zu.de
radsec.zu.de
helpdesk.zu.de
guestportal.zu.de
mediathek.zu.de
guestlogin.zu.de
guestportal.zu.de
coyo.zu.de
zu.de
planspiel.zu.de
cms.zu.de
zu.de
repos.bsz-bw.de
opus4.bsz-bw.de
ezproxy.zu.de
zu.de
repro.zu.de
cms.zu.de
repos.bsz-bw.de
m.zu.de
repos.bsz-bw.de
cms.zu.de
systemone.zu.de
opus4.bsz-bw.de
guestportal.zu.de
learning.zu.de
email.zu.de
email.zu.de
zu.de
opus4.bsz-bw.de
finreporting.zu.de
helpdesk.zu.de
learning.zu.de
WEBMAIL.ZU.DE
cms.zu.de
guestportal.zu.de
opus4.bsz-bw.de
systemone.zu.de
adfs.zu.de
cms.zu.de
idp.zu.de
radsec.zu.de
zu.de
zuqpilot.zu.de
www.zu.de
reporting.zu.de
dms.zu.de
connect.zu.de
cntest.zu.de
repos.bsz-bw.de
m.zu.de
opus4.bsz-bw.de
zuqpilot.zu.de
learning.zu.de
repos.bsz-bw.de
dms.zu.de
opus4.bsz-bw.de
systemone.zu.de
m.zu.de
rdweb.zu.de
mediathek.zu.de
radsec.zu.de
www.zu.de
idp.zu.de
zu.de
systemone.zu.de
www.zu.de
opus4.bsz-bw.de
adfs.zu.de
*.pbx.zu.de
ts.zu.de

Certificate

The complete raw certificate details for email.zu.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEAQdi9XQGDhadWG3unt04wvYXtPpJ
yBSYQPYchseiqE24xkg53wqGDgu0lslNh8ONp+8R+SIJRqKlU7lHiKQpxg==
-----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 298571780656397735509595849867523304501626
 . . . . . . . . [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 2020-02-29 11:03:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-29 11:03:15 +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 'email.zu.de'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				0004010762f574060e169d586dee9edd38c2f617b4fa49c8149840f61c86c7a2a84db8c64839df0a860e0bb496c94d87c38da7ef11f9220946a2a553b94788a429c6
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							80b7f0a33ba13dfaa531e8b358911172d298b2c5
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'email.zu.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)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000017090d4479e00000403004730450220770370c2aa6f69bbcfe63ebf80e4ed8246968aada07e3885c7c445186d304796022100f547db1cd7d39963e31129fc3dd8bc8efa11cd23d224b4779537b72b6853e8d300760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000017090d447cf0000040300473045022100e8bd82f10b62d796d5dbee14257103d0654508d70881e1c9bb683e3595e54155022043c12208036db1c3519d691bae977347e812ce72aa424adf73f4df9fc57a1879
 . . . . [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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