prooptik.de

Issued by R3

About this certificate

This digital certificate with serial number 03:18:d2:e1:81:9b:c4:9f:c8:fc:c5:46:6b:b7:36:6f:c3:db 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=prooptik.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:18:d2:e1:81:9b:c4:9f:c8:fc:c5:46:6b:b7:36:6f:c3:db
Serial Number (int): 269783943376063322023561758554209261700059
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1e:44:d3:b1:25:29:1e:7f:1d:e5:43:80:2b:be:71:08:5c:0f:bc:0e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1f:79:a5:da:9c:ef:26:5e:cc:bb:60:92:55:f4:85:81:8d:ff:1e:cd
Fingerprint (sha256): 4d:83:9a:4b:1f:1e:ae:3c:c6:b8:88:ec:52:6d:45:de:58:79:b9:0e:25:bc:e6:c7:f9:0a:98:58:fd:4b:0a:a3

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
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www.prooptik.de
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sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
sni196360.cloudflaressl.com
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prooptik.de
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webmailer.prooptik.de
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www.prooptik.de
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www.prooptik.de
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sni196360.cloudflaressl.com
prooptik.de
sni196360.cloudflaressl.com
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webmailer.prooptik.de
sni196360.cloudflaressl.com
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prooptik.de
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sni196360.cloudflaressl.com
www.prooptik.de
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sni196360.cloudflaressl.com
www.prooptik.de
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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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArfw7//spIGgnbRUg09uT
foNyhxK2DnEqO959xQg0JUB7onPQBQNojqUN4UwsQ2VJyQaZkfY1uryVjKlgsp8Z
6Sbqla9/jA1XJ5hL3dyX2oiNhqGevKJNWBZ/wPY+v6nRXEpCBdwYwqvHmHKt65jG
lkl/YLip1Q7creFd49fVrWtKrcHalZdOi5kKqt6AV3a1GFftmyBnqFmS4KQWT37C
7dCdvLjMUPw+PIP5N8oaFmXQztbouLSnlem+D4pcAO4tXCqaVMFaglmO7kx+dMvR
3rVjpe3kRPkp77rL5jF6SH3Rf3KZqpctxE4T8hAeCYUbMfDlKVSwdmjYvu5iJzG6
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 269783943376063322023561758554209261700059
 . . . . . . . . [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 2023-06-27 02:52:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-25 02:52:24 +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 21963608165056891827773544590558063264765809501648931632839052250739464131741846292179611509511430686868512624905787075587014512731343974345885660447637194291591167803154640316304133152547767041931097532387027341888788472291723386339421439670594958044312745805083078183153865851650442490584148384883215362266199204413630351871813927835584500360520947967774745423755547472764033716767650409419958168571637370418543602729919066240549273554694508974480822529872497095059111615194361242166127872985213923403584317401480140721388566115230058051226005950010414305379658027986444620626534435168531003728443111852872477817553
 . . . . . . . . . . . . . . . . . . . . [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)
							1e44d3b125291e7f1de543802bbe71085c0fbc0e
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000188fafb2f9a000004030047304502206d65189d47383f6db8c8deb7332307708a59fa70c424c17fb23fcc322a9e7847022100a0fa5b5f0f5b5b7093d651cde4fb535442a0320e4484a2ec32b828912aa18ac9007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000188fafb2fae000004030046304402204727d2d7bf6db16a779a4ffd25dda55d86e9a8e3eab22407538c831877686e5a022076bd1d315eaa1340bb788fa7e8d9599c165c7b321c3d4122a7720dd2571c0c8c
 . . . . [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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