www.durabest.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:b8:93:2a:a9:d7:5a:ac:32:99:a4:f5:17:49:7f:a0:9e:4a 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.durabest.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b8:93:2a:a9:d7:5a:ac:32:99:a4:f5:17:49:7f:a0:9e:4a
Serial Number (int): 411256717277131444742610375117539511410250
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 08:59:cd:63:b1:30:c2:03:32:6b:d6:99:ea:b3:4e:c4:dc:7a:cf:cf
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c8:b3:ed:20:7f:d2:e6:9f:31:ea:8d:f3:71:ca:66:de:ed:0a:89:79
Fingerprint (sha256): ee:82:1a:b8:8c:7b:8c:4f:a8:2c:be:09:51:52:48:7b:bd:02:ae:b9:f2:8f:3f:8c:bf:21:01:2c:84:f9:84:d1

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.durabest.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.durabest.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.durabest.com

Other certificates including the domain name durabest.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.durabest.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 411256717277131444742610375117539511410250
 . . . . . . . . [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 2019-12-17 15:28:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-16 15:28:11 +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.durabest.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 728869029508006885469181748029371364620800116313257290399283097433994496456783378319076572392172262360871975143771350507553585726437241956657990214160276407464218970671171163487704794642023402789374622602989582555135532066465159520252105615464185870653925777581800469642157140285500028621387341451358527079400061710202831513585638206835076045284815594101578745066637943936291287609973410584003589501808166059935610363874594026818392322938737852275424531107750045474790939944001617589094076051778205446864849361752379228413403862859378814755720164363139342855750108555011764488638600442069096003169518040649117030407933500579083637043039540810820208378393208871619930358571537002115152847096951062931158354355689777707816579916346803392105441913128493520555206273140480546796078007727778821608038539463173161800772109585084125315445457425505297391141135610686212939773335296826578577697421572667197800326473016028271521137472064040712543942849133552413382099924967121141358048543439374862155782687603441175449419637652835767921845551177348712779539550753419912510563694136227631679507252977552270072690476281194524949324454438315770504113140045424714342586270512358209520546684093023168917444009628431504745938219203106228313003587213
 . . . . . . . . . . . . . . . . . . . . [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)
							0859cd63b130c203326bd699eab34ec4dc7acfcf
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.durabest.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)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f14b03aa800000403004630440220365e1a08bf18ecf513cc836f82b4f6c54e35c305b71673d1e4494d7d5fd1046c0220530e1b0d21b5c9c652b97b7424f75e908ad56149bbc206ab88ed30eb9a17103300760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f14b03acd0000040300473045022021abe9a45160894fbb01e9f12e38a3fce4d9c5b66838feb5872b547a1d202605022100dd1845828b7ca0216cb2402c21744d7c88c061e42b865c437c93028f25224579
 . . . . [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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