email.zu.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:cc:80:bd:3d:2c:5d:9e:d9:7d:c8:ae:9c:1f:c2:58:9b:3a 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:cc:80:bd:3d:2c:5d:9e:d9:7d:c8:ae:9c:1f:c2:58:9b:3a
Serial Number (int): 330925584415460917917199839367940535786298
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): 2e:ba:97:9e:f1:41:18:2e:af:3e:c2:ed:1e:64:09:eb:f2:2b:69:62
Fingerprint (sha256): 1c:65:d8:65:34:ec:c4:be:b0:2d:b8:a4:07:b3:ca:11:a5:60:fe:80:9a:98:f2:34:d3:77:a6:63:5a:ea:4e:97

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 330925584415460917917199839367940535786298
 . . . . . . . . [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 2019-11-01 08:43:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-30 08:43:14 +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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e2658f6540000040300473045022100ca2de1921556f28dde58aaa4592062a6de1050f79746354c7852a6eac2ddaa1b022079f7d00f0822818a61e412ec99ce673d82c7085b1da3890adec438166ea51f3700760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e2658f67f0000040300473045022007721283a4b40b8b2c6b691ccc04436d7d7da17ece4b7854ab519f3bf15cb1610221009d4d650dc5ec4dc00d8a96972666be7b2f3cf6741f832a28bbfb8637c5ed44c6
 . . . . [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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