www.ykrco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:67:06:c8:2a:ad:57:65:b9:07:a6:01:14:f1:c6:56:ca:67 was issued on by Let's Encrypt.
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=www.ykrco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:67:06:c8:2a:ad:57:65:b9:07:a6:01:14:f1:c6:56:ca:67Serial Number (int): 296394956281078541776841426727205248354919
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: bc:34:28:37:78:b7:b1:d4:f3:f8:79:da:f0:44:cb:78:8b:80:0e:66
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 61:a2:f1:bd:2c:1d:f5:80:30:a5:a1:9f:99:c0:ee:66:f0:df:ce:34
Fingerprint (sha256): 81:80:3e:34:a9:dc:cc:10:31:29:2c:e1:e8:90:29:40:52:c8:11:95:0e:ea:11:77:d2:48:67:ab:c2:84:b7:e9
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.ykrco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.ykrco.com
Public Key Algorithm
RSA
Key Size
4096
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
www.ykrco.com
Other certificates including the domain name ykrco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.ykrco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUTCCBTmgAwIBAgISA2cGyCqtV2W5B6YBFPHGVspnMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTgwNjM2MjFaFw0y MDAzMTcwNjM2MjFaMBgxFjAUBgNVBAMTDXd3dy55a3Jjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQCYHY6g58BgYqFIPJIihk7omL8tjREFo/cq KMpcn0X/e6TtdD7i+659At9kYCUvErkwXhwjmZSMI2PVhVlUp24PZHCMbAzdL6SY Lm7NMf5HcHuqDMvF2KuSO23Q7MNLkSoEETW5kDj6bZmhb3VuKZfsaSxzbSCwfHSb DhI5VrFHPciBgQ8zRlGmgIIzqacmr4z14czcA2ZaFfX10yzcF18/gOv/16AU4X5v wgdC7kwd8Lv1tSNMFNtUV/BNmJJgl6XKpBo58z+9Hc9fC1OcuV2XtWty1NnUAS9x yNK2B1WpL76ol/qmnU3WNlB8Wpa4hpWFSERvzcxdFWRZ1f5RLIcxS0HdnEIKIUo/ 1lXGPaDJAFQ4SOIe4p8Qi+4hFDgjn21EHpvHS5Ze7Ljj4lFLhi/5H9YQusfER8yy 2Vp4rB03GBWJboq8dsCHxf5X6i59/xCu8enNjcMGBgkcSTznDoii7U5TSwNkK8wR mW1ue7MEQrmntGYI4WWkZWFSyO19+Ysw5ePenl0WoytHy+/dloS4fLCgyi7SnDpR uWrT1Io4mQ1jw0PRqc6Bh/reCVr058reTT2kihBiN0vYSEBwrmuUluhx3E3Gzg7g VpDgGqsRAPLbEqexawVjc1vrLmjStQfqFfITB+y/JYB3ZyH7lQ1/wKSuXxARXnlE 0iiH3u7RUwIDAQABo4ICYTCCAl0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBS8NCg3 eLex1PP4edrwRMt4i4AOZjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy55a3Jjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHx AO8AdQCyHgXMi6LNiiBOh2b5K7mKJSBna9r6cOeySVMt74uQXgAAAW8X768kAAAE AwBGMEQCICMtosaOVWyWdUwjJUdaHQYDN06EI5k2EhcazvkR779bAiAy/WdVAJFD Pu1+3edlYWYXNx9IddDXoXdIjdjtwGN8SgB2AG9Tdqwx8DEZ2JkApFEV/3cVHBHZ AsEAKQaNsgiaN9kTAAABbxfvr1wAAAQDAEcwRQIhAKaqXPC5UA58mWODBNm2DE2T JnotCXXDMiiYOYl3uUnQAiAeMPX7MWPAD9eb1NXIg6CBjgn8szjuZo0iI/eG5b+y 9DANBgkqhkiG9w0BAQsFAAOCAQEAY9GiqSrfqroRxrLliFSihDs94w7grXLJmJyW 4JL4R47GSbOenKjvVbXMEiwDIQgFQQnK5/AOFTO6lMHk8A6bdplMruAABtOdDpIA JABlQ3buenXmIiWTQiRL0VwxfBQYy4xn0Ep2pjTp2KgAypRHcqaqZnLi1gvwW6Z2 faanZmztFhgEAg/mrHP8HwldOyRfJ9f8+KFG1q+5Yqhh6gPdygmForuPX7Dur8Bp 7VxvZDXUznaZAyEz8ABYFJPq2DhFdDmCtpdYmNXJEE5JcqCqkSnZ68mubM4M3+ii g2wMZkYjexQwllNxRdwJW+LsdelrOy/7ZzXMYV1sT6x1NfkTEg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAmB2OoOfAYGKhSDySIoZO 6Ji/LY0RBaP3KijKXJ9F/3uk7XQ+4vuufQLfZGAlLxK5MF4cI5mUjCNj1YVZVKdu D2RwjGwM3S+kmC5uzTH+R3B7qgzLxdirkjtt0OzDS5EqBBE1uZA4+m2ZoW91bimX 7Gksc20gsHx0mw4SOVaxRz3IgYEPM0ZRpoCCM6mnJq+M9eHM3ANmWhX19dMs3Bdf P4Dr/9egFOF+b8IHQu5MHfC79bUjTBTbVFfwTZiSYJelyqQaOfM/vR3PXwtTnLld l7VrctTZ1AEvccjStgdVqS++qJf6pp1N1jZQfFqWuIaVhUhEb83MXRVkWdX+USyH MUtB3ZxCCiFKP9ZVxj2gyQBUOEjiHuKfEIvuIRQ4I59tRB6bx0uWXuy44+JRS4Yv +R/WELrHxEfMstlaeKwdNxgViW6KvHbAh8X+V+ouff8QrvHpzY3DBgYJHEk85w6I ou1OU0sDZCvMEZltbnuzBEK5p7RmCOFlpGVhUsjtffmLMOXj3p5dFqMrR8vv3ZaE uHywoMou0pw6Ublq09SKOJkNY8ND0anOgYf63gla9OfK3k09pIoQYjdL2EhAcK5r lJbocdxNxs4O4FaQ4BqrEQDy2xKnsWsFY3Nb6y5o0rUH6hXyEwfsvyWAd2ch+5UN f8Ckrl8QEV55RNIoh97u0VMCAwEAAQ== -----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 296394956281078541776841426727205248354919 . . . . . . . . [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 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-18 06:36:21 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-17 06:36:21 +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 'www.ykrco.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 620576924206106589380182699610870335302225428911389712974263817346337334089607124217851498677090057806203135668736648862322263914910738356694055937124539472106956160104318525551102334069921553542688635116327330322694717350959325202109754844651715667115954364374684572797292298612688420230478719172457709582027505082782370063519843554467023630133747442559498998544839692730386587583887812617271155954863481847391344765009179450183619248807443142945529472904355975806487343894040693035882098552832959980006597423502377670976346077780955833556293325874642731625084337733749843697707511818071768406161046468327497223039395795019121553774132189414913789258256855243398156209220283057184746182452481108061313046819581804679007508754305032335216673340632122123001056512520680074038239178655436222702680478259759636439246487362156534788353466782942864572509932900620364419229654910103229283251245107967063907252970381819302742499701718061190965416018794102486384608646870564120148585969040213132377668386201321521125632441184806630251477121716391793658808593069850185904713711043112530992974123837277687059420239758088868608786734328766024998557659829465445303355705579886767372800851605765711488005810041728494039828729146875992698673615187 . . . . . . . . . . . . . . . . . . . . [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) bc34283778b7b1d4f3f879daf044cb788b800e66 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ykrco.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 (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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f17efaf2400000403004630440220232da2c68e556c96754c2325475a1d0603374e8423993612171acef911efbf5b022032fd67550091433eed7edde765616617371f4875d0d7a177488dd8edc0637c4a0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f17efaf5c0000040300473045022100a6aa5cf0b9500e7c99638304d9b60c4d93267a2d0975c3322898398977b949d002201e30f5fb3163c00fd79bd4d5c883a0818e09fcb338ee668d2223f786e5bfb2f4 . . . . [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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