prooptik.de

Issued by R3

About this certificate

This digital certificate with serial number 03:c9:b4:1e:78:1a:66:8d:93:47:d2:9d:f4:5f:a9:75:5a:34 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=prooptik.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:c9:b4:1e:78:1a:66:8d:93:47:d2:9d:f4:5f:a9:75:5a:34
Serial Number (int): 329973032790517235286587970664031828924980
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cf:89:35:ef:53:33:f8:c8:2c:7d:6e:32:de:96:55:eb:5a:1f:18:7f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a9:09:04:0b:bf:8a:eb:60:06:44:90:97:ff:1a:08:90:2b:09:e7:6f
Fingerprint (sha256): eb:3d:1a:21:18:15:13:5e:62:d4:a4:8d:6e:45:10:93:cd:ce:94:e7:ad:1f:75:21:59:9f:a1:f2:e7:35:a6:a0

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate prooptik.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for prooptik.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

prooptik.de
www.prooptik.de

Other certificates including the domain name prooptik.de

(limited to 100 certificates)
*.prooptik.de
sni196360.cloudflaressl.com
www.prooptik.de
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sni196360.cloudflaressl.com
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sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
www.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
prooptik.de
*.prooptik.de
sni196360.cloudflaressl.com
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webmailer.prooptik.de
sni196360.cloudflaressl.com
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www.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
www.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
webmailer.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
www.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
www.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
*.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
*.prooptik.de
prooptik.de
sni196360.cloudflaressl.com
www.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
shop.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
webmailer.prooptik.de
sni196360.cloudflaressl.com
prooptik.de
sni196360.cloudflaressl.com
*.prooptik.de
www.prooptik.de
webmailer.prooptik.de
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA/A9mbyWiBk66ix0rdPNh
/HfyxWGZQ8R+/nD+ZhbPnMBjyeNncQ2YAtYKm6OwVvVpv7bCBkGpHzVE/r4qvnv5
EMjnE91Az5FAgr+FBSfnkHmUiWyipUyBcEms7Gu3qT+vVdv6urx0uxmRE6v2IHOD
ho8Tu65Lru0upSQv1bbJRljLwgKc69FDmEjPeIUmOLiNXa4k0qqQyxZ9347xlRtI
ZeUtfZ2kkghBaKTOtVDy93uNdUraiJ1m80GKgqWqEK+Z4IIyOCY3hzt3AuwBADHt
IhHxM+vzZjTkfweCtmBqO0e+oyshTWGp+Wj4e+njCcWTQo0xNkBMb8fYfIr5NQrb
0QIDAQAB
-----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 329973032790517235286587970664031828924980
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-22 01:52:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-22 01:52:24 +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 'prooptik.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 31819646940295747407445469049434487415811853759799048642958718884280571329464442546942808956314130003503349550367870669427686494802800150819848809483965264660136110166145091436722677536473288336038610987295824689691115214776719593390481716699233326326766667269058333285815080225714341088195981265847383209185559146607402635525394244924730112924135249104454563251240445581512669910657457640626826731263479328606853441472389190647915420631802999899763805164760519923577109344878685270279697428112088995596046951793139099847969520034950006550004110386385765330722058539641595596086195569405737177628798443948615171496913
 . . . . . . . . . . . . . . . . . . . . [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)
							cf8935ef5333f8c82c7d6e32de9655eb5a1f187f
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'prooptik.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.prooptik.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018dceba80d500000403004730450220621b7e3685b4b9d902bd38dc596c11cb0e5593ae1092da0661da6c1b7b1f92b902210095ee4c52265f0793e34fba8959453266bb6bee8d5c4cdfaf01cc774de352a43f00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018dceba80c10000040300473045022100929c41e426d89a7ac0b064efc816d61e21e1482246190d39ef5a081b3eb129b902201928c117bf3fc7bf284b9d253a9f826e9abae9c3b526e305c4918d29cba72177
 . . . . [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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