ct01.fr

Issued by R3

About this certificate

This digital certificate with serial number 04:7a:b4:24:0f:b9:39:fd:0b:da:2c:9f:a8:52:61:b7:59:87 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=ct01.fr

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:7a:b4:24:0f:b9:39:fd:0b:da:2c:9f:a8:52:61:b7:59:87
Serial Number (int): 390203040772234971919621387463003123177863
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: ff:d0:4a:ab:88:62:aa:74:eb:7f:72:a7:d8:f4:0f:90:55:76:d0:9b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 11:b1:4d:7d:3e:08:48:e0:81:52:a8:9b:7a:71:0e:71:16:e0:46:01
Fingerprint (sha256): 8e:1d:ad:94:69:53:8e:57:c0:2a:4e:ba:42:69:8f:cc:df:d1:dd:67:10:d0:14:18:c9:57:8f:60:71:74:9c:60

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

Revocation information

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

Check the revocation status for certificate ct01.fr

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ct01.fr

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

ct01.fr
www.ct01.fr

Other certificates including the domain name ct01.fr

(limited to 100 certificates)
ct01.fr
ct01.fr
ct01.fr
controle-technique-as.fr
ct01.fr

Certificate

The complete raw certificate details for ct01.fr in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzJ18dVV4AljPlA+7hw/o
+QTHvPwXp7ZC6haKYUDXHP+G6zqxbnA/3x6rQw6J8NFEEIMdXZsX8jTWiIqi5slo
l/z7duHDNNtlZoqKiKb3XmcFtYml6voiJH+qcxG3TTemM60fYS69hObHJ/2rd/Rx
1JlxgrfRYTShgTHz3WPB9N2ClLk5v7D0jmGSZ2EEj54MOpU/GOpcRoGqCd++t7sZ
MmDnqAznSokDvctGkBpsSre2gsKvjI+MWNK2CApBNrQeed2nDQ3jo1VuUDNHy0Ip
T/jH7mzePWmap09LY/b/hTp3IKZb6OoBbnPeu6lxeGwd7iEViDXRrDoAD59PDwRD
FQIDAQAB
-----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 390203040772234971919621387463003123177863
 . . . . . . . . [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 2023-09-09 03:16:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-08 03:16:31 +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 'ct01.fr'
 . . . . . . . . [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 25830273535623805063003006905800035021843631934804106414763153672132667651460915010552847359733163640079166131029337322035997781335095075290441719206560988564477363389712257896755989726920896345144895678786621142313984419614821856469037535911057412766236801544146448951855221481192675458603456567530077789715103223898418934663315705156503538926090996971698230786039179447184765647762022202743586294155469487260167637935497947666427477285078000697981394396402703139102685920456959820653532316123571253698320260929837270544966752425109877601763259257472637622640304333124588860635982143957105169720500617490026413179669
 . . . . . . . . . . . . . . . . . . . . [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)
							ffd04aab8862aa74eb7f72a7d8f40f905576d09b
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ct01.fr'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ct01.fr'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a7827dc450000040300473045022100e7ce7e41975aaf25ba2f002bdc93576f0047852581503239c65c63074ea175a70220199892fd8ca02f4953aaf209e9345be2eb8db6f4409497d569dd2e41ffb929220077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a7827dc5600000403004830460221009b0369bfd8bff49d5691d9791e49c7e36ba0cb405e3e67067e0c3208dd16148b0221009c63a9c3178a20edcd50e2a178240443b62c24d1dd9fec0746808bb8eeab3fa3
 . . . . [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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