cemento.ai

Issued by R3

About this certificate

This digital certificate with serial number 03:44:02:8e:10:d4:a5:38:25:a5:cd:78:b8:cb:95:b5:df:48 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=cemento.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:44:02:8e:10:d4:a5:38:25:a5:cd:78:b8:cb:95:b5:df:48
Serial Number (int): 284479454849416094248353495891416704212808
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 30:35:39:50:47:5a:d5:47:41:a3:95:91:a7:68:06:28:96:16:d8:81
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 0a:25:49:6f:c8:64:77:8a:ab:72:c0:02:2f:e8:f8:6c:0a:82:38:0d
Fingerprint (sha256): 00:17:d1:cd:ae:d9:c9:85:53:b8:79:b2:df:4f:8b:86:37:69:72:c5:b1:26:c1:ab:e0:de:a0:ab:a2:65:58:49

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

Revocation information

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

Check the revocation status for certificate cemento.ai

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cemento.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

cemento.ai
www.cemento.ai

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Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIE8DCCA9igAwIBAgISA0QCjhDUpTglpc14uMuVtd9IMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMTUwMTI5MzlaFw0yNDA2MTMwMTI5MzhaMBUxEzARBgNVBAMT
CmNlbWVudG8uYWkwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCZn/W4
WtGIflSlnt+ZpIt/DB6BQ7Y2I8E64x8OfzAKkAMVHyhZtwiJy1e28SMT9F7dT2Eg
w2Uf+WJtLr7TOqwVFwXEO+IflDhWeEMiVhEidc8AmhOveRmACJh3yP6LRWOYfEkV
jkKV+j3CqvJcvYqbF7hlYO4t52V/OIPIrZRqJzAnAivmTdNuQDS3eOZuN5i+rBg7
94C5eAlHNBRUASGn0hZpblzXSHqeM5+xhyEsgCNK4P0X5Taz54VmEX96X4JEof2X
qfKj+LAnQxocMlpk8B/sNC4ySiF1sMqJy6YryhXt49iDGla+eHEHeAfRBCzpgZa+
Jt/CuLjbwGFQayJhAgMBAAGjggIbMIICFzAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0l
BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYE
FDA1OVBHWtVHQaOVkadoBiiWFtiBMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYf
r52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8u
bGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMCUG
A1UdEQQeMByCCmNlbWVudG8uYWmCDnd3dy5jZW1lbnRvLmFpMBMGA1UdIAQMMAow
CAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUAO1N3dT4tuYBOizBb
Bv5AO2fYT8P0x70ADS1yb+H61BcAAAGOP/GR7wAABAMARjBEAiAm37boY+w/TZ35
ANNTdCb8iwpSJ1LoUkwPijNTZ72yIgIgRW2uaHc6xFEIbWp0Qt+VA3nOdnXTQplU
esBp8GYTpBYAdgCi4r/WHt4vLweg1k5tN6fcZUOwxrUuotq3iviabfUX2AAAAY4/
8ZH+AAAEAwBHMEUCIQD2wy2CnM5J3nhznULHDKkhh8EJnn+ZwgTW8/jlz8wROwIg
PWeZKyiRj0KP1QrsqTeeP7RQL2nGsK00l692xFUV6iYwDQYJKoZIhvcNAQELBQAD
ggEBAG4fXbaHumJkg7lCnuFmOd+Wy2P3+Gz9U8WBM1cn6uAb6qM8GCnVEJmk12si
XHoPKaTs/anSPxAAgBQcs0+wJ03wd7gRw223dlyR9ddYs8j5r3gruv5zPcgheRuh
XisKf9hiC7OQigJTtS12L5pqIRDXmQm1NOxn4xkziL5/Do8h7guW74kZRBhsKPMI
ccdjsv9sTgcFczzV/ub5QvwUtAvnEgMnQOCgWzjOoafZ0d3FXsZA1/EzLFjEm2TH
BRBtCANo5h5+jh7NK8k7nCp6TMA23wFhHpowPN/MxqyRwear1RTrHDx0/Nws6LTB
XQoj+9QnjGFY4lN41CgYO7Rzpxc=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmZ/1uFrRiH5UpZ7fmaSL
fwwegUO2NiPBOuMfDn8wCpADFR8oWbcIictXtvEjE/Re3U9hIMNlH/libS6+0zqs
FRcFxDviH5Q4VnhDIlYRInXPAJoTr3kZgAiYd8j+i0VjmHxJFY5Clfo9wqryXL2K
mxe4ZWDuLedlfziDyK2UaicwJwIr5k3TbkA0t3jmbjeYvqwYO/eAuXgJRzQUVAEh
p9IWaW5c10h6njOfsYchLIAjSuD9F+U2s+eFZhF/el+CRKH9l6nyo/iwJ0MaHDJa
ZPAf7DQuMkohdbDKicumK8oV7ePYgxpWvnhxB3gH0QQs6YGWvibfwri428BhUGsi
YQIDAQAB
-----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 284479454849416094248353495891416704212808
 . . . . . . . . [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 2024-03-15 01:29:39 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-13 01:29:38 +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 'cemento.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 19393339798887403901290756724742567352177813505018014687766226460776632694426731171329045483660791587473778342994563339461795677772377805863628657020552795195993470156228482793494300554207719431627573371660612110683291457495122522659519383877729076993873727509310023228712983203665977859802420996645642203068301338536588098427063505324292630285162460558925974081720586356736987283179366114867911078908155896942440121015298672502767187096572039502158702068925655622241288153311841798010251146261230768257633535887182675945682410393025648481768205077536414050908416743977250444973238941251076956391862866818631031530081
 . . . . . . . . . . . . . . . . . . . . [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)
							30353950475ad54741a39591a76806289616d881
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cemento.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cemento.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 (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)
							00ef0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e3ff191ef0000040300463044022026dfb6e863ec3f4d9df900d3537426fc8b0a522752e8524c0f8a335367bdb2220220456dae68773ac451086d6a7442df950379ce7675d34299547ac069f06613a416007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e3ff191fe0000040300473045022100f6c32d829cce49de78739d42c70ca92187c1099e7f99c204d6f3f8e5cfcc113b02203d67992b28918f428fd50aeca9379e3fb4502f69c6b0ad3497af76c45515ea26
 . . . . [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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