ckcouriers.com
Issued by R3
About this certificate
This digital certificate with serial number 03:e1:3c:e0:bc:c9:cd:16:82:7a:78:d2:7d:c5:11:41:0a:fe 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:
- 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=ckcouriers.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:e1:3c:e0:bc:c9:cd:16:82:7a:78:d2:7d:c5:11:41:0a:feSerial Number (int): 337981310935816638764323434963217854565118
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 19:d9:74:33:a0:30:26:1c:c5:02:b8:8e:0e:fa:57:8d:56:9a:82:50
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): e7:2f:d9:c4:32:a4:d7:8a:6e:0b:01:0e:54:5c:62:b0:81:8e:75:96
Fingerprint (sha256): 96:8f:4b:d7:39:7b:bc:38:4e:7b:e0:59:71:05:12:b3:ef:e6:f5:8d:0e:a4:5e:ba:d3:2c:49:fa:b2:16:33:8f
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate ckcouriers.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ckcouriers.com
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
ckcouriers.com
www.ckcouriers.com
www.ckcouriers.com
Other certificates including the domain name ckcouriers.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for ckcouriers.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE/DCCA+SgAwIBAgISA+E84LzJzRaCenjSfcURQQr+MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDAxMTcwMTU3NDNaFw0yNDA0MTYwMTU3NDJaMBkxFzAVBgNVBAMT DmNrY291cmllcnMuY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA s/e2tNHEiYcqfldGQ6n7LHpYbvDsoz+//kEd3odPKVR8UoFZU8XJEZCH1laA/Hzz ijd+o5zqW1z39zjKYGf3TOv/cJmp9qzO+YgPSIrVrBhx+LQjyOVglHPWxgKKXe+t T1t07Nr2i/Y4Nbz7RRrTH3wlXDq7yLc74HslM+oMjDLu3jETj8LINwRETrqWpCJl 54I6sg/4kpSwpBhc69p7IWuuoAJrmLikx+BimpicUctjg0+838bQJJ9KLTNRSqYV 1QUet9CJihM5yZZ2xUwsMxOaxrIDa4Eg5bryKwghCAH9ayv5ZyDrlpA9uSlsv3Bn mleWM2yS2zeSKcT+2+GUJQIDAQABo4ICIzCCAh8wDgYDVR0PAQH/BAQDAgWgMB0G A1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1Ud DgQWBBQZ2XQzoDAmHMUCuI4O+leNVpqCUDAfBgNVHSMEGDAWgBQULrMXt1hWy65Q CUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9y My5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iub3Jn LzAtBgNVHREEJjAkgg5ja2NvdXJpZXJzLmNvbYISd3d3LmNrY291cmllcnMuY29t MBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYA SLDja9qmRzQP5WoC+p0w6xxSActW3SyB2bu/qznYhHMAAAGNFVpqRgAABAMARzBF AiEAv9WmUR9bl6qjtJpylkfzTEoAmqgeAiZK3dus8hKPJs4CIEoYABppyjIp3x7+ RWVE8PSRw/b7qwKZp03VztvcUsqWAHUAouK/1h7eLy8HoNZObTen3GVDsMa1LqLa t4r4mm31F9gAAAGNFVpsQwAABAMARjBEAiEA9p41w+f4Yk46GlppayEz2Dhspvqw oUkOw1SZqgwf4nICH1cdfnk0ZBHSsk5CE4BuXJ40q+QVN+HLVLwhrUJyhZwwDQYJ KoZIhvcNAQELBQADggEBAIkOz0M3rVBxGDcKZR14QTqP5jjpxfbBIvOulxuOqjNn QZqertdB4poPlfYAwjCeSmwQ8xdiEIMwstEnfccnZc+Rv9qbRRmGrS63wl70it8+ M4gsVIrT6RJCFbBLdTgY6GG+TrlO/M3uoRCxVN5kKY0UsZ6C/CS1LrmUaGZG4Wl1 VlcFrdE69oYvx9MqA+4EESZsxtQ+n6wLoN2hXDq9LrKS3ZvsbccAf7YTCIip+S/h WlA0JlvZzjjmqY357r+uRXx3gFufV7zTcQiZR+O7UAGeL10Rfva6/lcpZRWsQMBI xGfUxPp2Bws9qwcVxA2YG0ZZ2/Sh/WOpTmbhUlEx9x0= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs/e2tNHEiYcqfldGQ6n7 LHpYbvDsoz+//kEd3odPKVR8UoFZU8XJEZCH1laA/Hzzijd+o5zqW1z39zjKYGf3 TOv/cJmp9qzO+YgPSIrVrBhx+LQjyOVglHPWxgKKXe+tT1t07Nr2i/Y4Nbz7RRrT H3wlXDq7yLc74HslM+oMjDLu3jETj8LINwRETrqWpCJl54I6sg/4kpSwpBhc69p7 IWuuoAJrmLikx+BimpicUctjg0+838bQJJ9KLTNRSqYV1QUet9CJihM5yZZ2xUws MxOaxrIDa4Eg5bryKwghCAH9ayv5ZyDrlpA9uSlsv3BnmleWM2yS2zeSKcT+2+GU JQIDAQAB -----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 337981310935816638764323434963217854565118 . . . . . . . . [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 2024-01-17 01:57:43 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-16 01:57:42 +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 'ckcouriers.com' . . . . . . . . [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 22718808765384600345635280782369120443141623782169014261437565976860593111708938181140978286890797375667191961023230846895019086114459184724788754750671143070950680707489955116989142892904732478239133062496408772988005149759164020464561791524528661618250642237430723455195225246946243143262787570272096708263315831722989906946403487511361455455154733491332859245557137612088296358667423624220279514868958406470669749799811588537635432351269861823363583625495082296379519410503841796415506274253886726560266008702500050406043284575447510573094186784660669766673467726770549530854899849513743830001634468383513177592869 . . . . . . . . . . . . . . . . . . . . [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) 19d97433a030261cc502b88e0efa578d569a8250 . . . . . . . . . . . . . . . . [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 (38 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ckcouriers.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ckcouriers.com' . . . . . . . . . . . . . . . . [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) 00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d155a6a460000040300473045022100bfd5a6511f5b97aaa3b49a729647f34c4a009aa81e02264adddbacf2128f26ce02204a18001a69ca3229df1efe456544f0f491c3f6fbab0299a74dd5cedbdc52ca96007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d155a6c430000040300463044022100f69e35c3e7f8624e3a1a5a696b2133d8386ca6fab0a1490ec35499aa0c1fe272021f571d7e79346411d2b24e4213806e5c9e34abe41537e1cb54bc21ad4272859c . . . . [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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