*.proton.ai

Issued by R3

About this certificate

This digital certificate with serial number 04:53:9d:81:8f:7c:96:ec:c1:8a:e5:07:89:c3:97:39:ed:ea was issued on by Let's Encrypt.

With 10 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=*.proton.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:53:9d:81:8f:7c:96:ec:c1:8a:e5:07:89:c3:97:39:ed:ea
Serial Number (int): 376901941693367436284668833055154340752874
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: bf:0f:56:98:b5:2e:ec:68:b8:f3:d8:61:46:60:9b:e9:58:a8:4d:ea
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ec:08:46:71:3a:2b:61:cd:ac:83:b7:39:9a:b9:cd:d5:dd:ce:12:b6
Fingerprint (sha256): eb:b5:f8:6b:f0:3d:41:90:1e:79:da:8c:63:88:35:7d:a2:2e:11:e4:26:a0:16:a5:8b:6c:2e:14:50:1f:f7:05

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

Revocation information

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

Check the revocation status for certificate *.proton.ai

10

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.proton.ai

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

*.benco.proton.ai
*.beta.proton.ai
*.internal.proton.ai
*.osr.proton.ai
*.proton.ai
*.sandbox.proton.ai
*.staging.proton.ai
*.workspace.dev.proton.ai
*.workspace.proton.ai
proton.ai

Other certificates including the domain name proton.ai

(limited to 100 certificates)

Certificate

The complete raw certificate details for *.proton.ai in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsg2tLvzHNCYlTMbBcFWp
U7NW5HOPLd8RsfHiIr+rUsrTxw1HI+dABwgJli2X2594cLOwrvbBhIP5jyp8zD4h
PwYs49shTJd6u3UYuqsxGMxPyrSiBB2RJJhkTFs9283KIA2uGOY9iT8dm84kXvch
2g2atXqNkSZFvA1vEt/bNk45fFQ9oF48fONzjwilS6yyOqUS8P9rCflsUuSug3+6
OpdZhwIDvhqcCo50f+Q/QFN0kec3k8CuVa5mGrb6d1n5XmrSieH2vH/4ddI9uJ7U
ACUQNOXAG59lN7M22yZq8uicM06NUhjdk9lotVQTjt1UqutCAkTfO+J0tXvsRUDI
QwIDAQAB
-----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 376901941693367436284668833055154340752874
 . . . . . . . . [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 2023-05-11 23:36:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-08-09 23:36:28 +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:12|false] UTF8String '*.proton.ai'
 . . . . . . . . [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 22477162416588498929692321289508933449748796160204455991759572394841879213984386396050773741511649415327228361927740419808189559694550443593068414593653682456833668160884264364618021913758409237156361191433774676561533557415160426078431381910589692823068361910002295493763427426228630414708277051660236954411845479741169619561685758744906397980493362163018562937248549058114762753959317291053794041375133954968241173574807459481970463320351833107191009723734804850993701870563487861597793179891817705876919327790198665481502248896162063632305783652690577191933152816789664558377945207757621126563852408327631651522627
 . . . . . . . . . . . . . . . . . . . . [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)
							bf0f5698b52eec68b8f3d86146609be958a84dea
 . . . . . . . . . . . . . . . . [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 (195 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.benco.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.beta.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.internal.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.osr.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.sandbox.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.staging.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.workspace.dev.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.workspace.proton.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'proton.ai'
 . . . . . . . . . . . . . . . . [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)
							00f0007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001880d6344420000040300483046022100ebf9b672346b4ebce0ff8a8f5697b3c6c1a80adf9ec28bb3ce3292b5b9323ef2022100bb72f2537c56c08d5d87df7996f6eaa7d317b2ef2100b9fc68ea65ab173c8b5c007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a000001880d63447400000403004630440220330213613559b47362e009e5be1f55d2bc78d699bf6d3c03ad2b68028bb5d34702201f3e4b07ee09f2c37085125930182152e4a4bfc8566407834925d878c89284f4
 . . . . [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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