www.byalenovo.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:95:ce:e8:9b:21:ea:d9:53:f9:55:f7:61:cf:33:4b:7a:a4 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.byalenovo.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:95:ce:e8:9b:21:ea:d9:53:f9:55:f7:61:cf:33:4b:7a:a4Serial Number (int): 312313959192964143900479060197410238855844
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 10:29:69:3a:19:0b:25:67:ee:e0:f7:97:c4:40:59:5e:30:cf:97:c7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 8c:d6:3c:6b:9a:9a:38:7a:8c:37:38:7a:9d:b3:65:48:a5:3e:a6:4f
Fingerprint (sha256): 59:9d:0b:76:9a:e2:67:ce:cd:28:43:06:6c:aa:14:c9:2c:65:45:84:f6:26:9a:2a:1e:e3:1d:f1:6f:32:43:12
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.byalenovo.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.byalenovo.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.byalenovo.com
Other certificates including the domain name byalenovo.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.byalenovo.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGWjCCBUKgAwIBAgISA5XO6Jsh6tlT+VX3Yc8zS3qkMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMTEwODM2NTFaFw0y MDA0MTAwODM2NTFaMBwxGjAYBgNVBAMTEXd3dy5ieWFsZW5vdm8uY29tMIICIjAN BgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvzwOCitC/7IfbNe6Hr/BKzBturp1 ZWowBL2GPDX39349W14tyHvFPkXKmpzJHOiuAEWkRlG1DXMy88fcxSgDoibhuWXO N5/0PAN59Po0qVZq2mZetLMnkV8IDCdrmnybLs3wbgELO91lUvyMknv85cgG35BV 1H/47WbpiUSumwbFxzSVbb0KRPFYj+7vd2q+thmVxnuhxg0FUoI5XrMyBmqAmVYO ee7RZHGTzVeIE+X6iAspZyxlZ4RE3Sqop/gVvINOJCvmvbilC51gZH0oJA4Um5ER XtB7gtcJEcGlvUkP40TNzA79zYMQlfz6tLtl4FpcdQ176QfQ+2wVL7jQmARzbXEq pHIJpKFF13itfv6rPOQv1iuIZSM8No9aNHj/0THs7e6jS2knbEtpAdbaaTcqZKdi nPtiNcfeYn9kkWAU1SH8qZ2mKNha8xM708989W7I4ulaotBZjHhFlHrFZEyRmQuL 0Jq89WqSCu11GGQs/qtOPQSlVnK9BGAbSfxZt1dxlTSwws/udE1qB4O6jvCNYYqq WGVhUGMwAXEi7+5ZAe+Leq/WVPYSnNLe9sF5/71QTHoe9tcppdxuDXx9t5wGFiCM zJDn89bW3pfhF7RoDuGFMfNLnfuaf3dt24gNF4ZIh7BZ6gDFNUtNySG9RhvBPC5L GJk3V4eYi90Be4UCAwEAAaOCAmYwggJiMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU EClpOhkLJWfu4PeXxEBZXjDPl8cwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl 7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5p bnQteDMubGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzAcBgNVHREEFTATghF3d3cuYnlhbGVub3Zv LmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsG AQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkC BAIEgfUEgfIA8AB2APCVpFnyANGCQBAtL5OIjq1L/h1H45nh0DSmsKiqjrJzAAAB b5P2ojoAAAQDAEcwRQIhAJ1NFMRzls5hWjWuLPqNRci0tA8gm7rcxXrdHiHL/coM AiBCYHIRIHx0L2i3KZD5LPSgOG05L+pDCsps+JoVj4YcoQB2ALIeBcyLos2KIE6H ZvkruYolIGdr2vpw57JJUy3vi5BeAAABb5P2pGIAAAQDAEcwRQIgVr3TXptvwy9o XziLqQ3nA7JjlIKI5oVJ0RIUWyYJzRkCIQCcdGUgNWVizNPLBMHo+H3EHwzyDC3q TsCIbJs4xD5OgDANBgkqhkiG9w0BAQsFAAOCAQEAIScKCNHerBxhdQ6S8XpgxmrV IfnRGfgzpSWAOLIUSH4jQHJ59BH2yj86XIYw8UAnuaIvmbwJGFfA0qbnorYQ48lF Ds5KudO+Z5TEf4Fk90/UP6IbFWRZtvSEUfcZYQE5JWePeCYHTv9F0bJcCSCS6E7M bkokUDDcNqc4awAKYjfdPesuFgzEzNu16N6l1kBkDsUqt8oRQJ5c7C3v8QjyS1Uq kONp3DBsQtkD6zMb1zLwU7TyJ4qh8crvzYPxHR1V8AiSndv6tBjkTfTuf6At0aLW z0tDJhcJOyt9aYZf/BqnluKVgvLMLAXjA0xqo3uHhMT+KFvqvDNafhg+6iCsDw== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvzwOCitC/7IfbNe6Hr/B KzBturp1ZWowBL2GPDX39349W14tyHvFPkXKmpzJHOiuAEWkRlG1DXMy88fcxSgD oibhuWXON5/0PAN59Po0qVZq2mZetLMnkV8IDCdrmnybLs3wbgELO91lUvyMknv8 5cgG35BV1H/47WbpiUSumwbFxzSVbb0KRPFYj+7vd2q+thmVxnuhxg0FUoI5XrMy BmqAmVYOee7RZHGTzVeIE+X6iAspZyxlZ4RE3Sqop/gVvINOJCvmvbilC51gZH0o JA4Um5ERXtB7gtcJEcGlvUkP40TNzA79zYMQlfz6tLtl4FpcdQ176QfQ+2wVL7jQ mARzbXEqpHIJpKFF13itfv6rPOQv1iuIZSM8No9aNHj/0THs7e6jS2knbEtpAdba aTcqZKdinPtiNcfeYn9kkWAU1SH8qZ2mKNha8xM708989W7I4ulaotBZjHhFlHrF ZEyRmQuL0Jq89WqSCu11GGQs/qtOPQSlVnK9BGAbSfxZt1dxlTSwws/udE1qB4O6 jvCNYYqqWGVhUGMwAXEi7+5ZAe+Leq/WVPYSnNLe9sF5/71QTHoe9tcppdxuDXx9 t5wGFiCMzJDn89bW3pfhF7RoDuGFMfNLnfuaf3dt24gNF4ZIh7BZ6gDFNUtNySG9 RhvBPC5LGJk3V4eYi90Be4UCAwEAAQ== -----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 312313959192964143900479060197410238855844 . . . . . . . . [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 2020-01-11 08:36:51 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-10 08:36:51 +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.byalenovo.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 780169057549032639128843399962401308958901093048755190527610064864001055060254101866032171129489112418687368335333342570005590946721459083797855685501918377879879294622907753789082768710902747862540144994825253996121536468874696765387461377448595614719467197031615711550897466496287536997623904172829281827863912600115667457825708548305879448433347269240693555189949989273910947120380591172430143194284954164740295323327210145071276497910185308024257099043095912980217651769920439555612508355609157582851111742364943824489598459658196844980400299940931152053584562313167903195221418401457163701760415375498208020136795652372857056284471863987960839709896312492023390236402997862391765560804066932518699884135512568661040048222410518093841310095519504771979713101389233318116291783096930933175168583581921028864591855292577054416776765864772409764393871847555831360682526483680709465038299153872652136712954730600439785760679404026943665632226805794380363710120265601907216671661483648096832061017511177243921375095095368766939400363227883020246885854103557054450907871485461541694182687453604989954588167203770723347648041556444370100798599837784060156146409111350845934012697231725724834065110557267607817680924035966962806506486661 . . . . . . . . . . . . . . . . . . . . [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) 1029693a190b2567eee0f797c440595e30cf97c7 . . . . . . . . . . . . . . . . [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 (21 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.byalenovo.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f93f6a23a00000403004730450221009d4d14c47396ce615a35ae2cfa8d45c8b4b40f209bbadcc57add1e21cbfdca0c022042607211207c742f68b72990f92cf4a0386d392fea430aca6cf89a158f861ca1007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f93f6a4620000040300473045022056bdd35e9b6fc32f685f388ba90de703b263948288e68549d112145b2609cd190221009c746520356562ccd3cb04c1e8f87dc41f0cf20c2dea4ec0886c9b38c43e4e80 . . . . [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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