www.duraf.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:57:a7:d1:8f:c9:34:84:fe:83:92:c6:22:f2:05:c1:bc:be 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.duraf.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:57:a7:d1:8f:c9:34:84:fe:83:92:c6:22:f2:05:c1:bc:be
Serial Number (int): 291164492899067588979117675864089098828990
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 00:ac:65:ab:92:26:c7:82:53:65:14:46:ba:9c:ca:95:a6:16:84:3d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 95:8a:13:b8:48:51:2a:d5:b5:7c:5a:3e:78:c6:78:f8:02:65:86:f6
Fingerprint (sha256): 5c:04:09:be:5e:0f:5a:9d:be:1d:5d:e3:0f:b4:a5:20:3a:b7:1f:92:8b:e6:1e:be:bc:5f:a9:1a:59:3c:d7: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.duraf.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.duraf.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.duraf.com

Other certificates including the domain name duraf.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.duraf.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 291164492899067588979117675864089098828990
 . . . . . . . . [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 2019-10-13 01:18:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 01:18:50 +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.duraf.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 748422934572726150373823891452545956376892394577290906029929568105515590867950630648154269656341618940587310179302223482799584609104297513615802066955519742311363292297795836491205082553492754757171168607510929737106598595219861871816262489643869068983185649832203077474779750587968433101861038451929070486463704970020600020170225360822579725836887135016146751172260899852972666906965565308499535031677183377249653172132468236719285741097103560350373201223979276580959503022036747383686726922246627573364742261659288311660055289331919624247529843356961397579685800891474597206784821010220714927983803707395696564315914269225182708464621506811370134144992482065580963239255476234406658439773315302612497944407709276659382090299369315789975402392983308434631231650342080825348196765562757863994659913954713145557304276945124786991431362585473085092878485895827010324133397196484241140545471455146053415570185055922335636944636361956474145330359388396822799257592164426722671200408496531613055043165390314444729882373266094613955323237225059478355181950092182458306328384141068846048365049688157658736406973457566174121303892598769635455441897248817340551323649036571759785100830585209162905573601227841933765606879127102953602264820937
 . . . . . . . . . . . . . . . . . . . . [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)
							00ac65ab9226c78253651446ba9cca95a616843d
 . . . . . . . . . . . . . . . . [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.duraf.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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc2e94362000004030047304502200f8aabbc45a967984c0cac3c1259c89a6b1b39a0374388acfa8af35f00962f9e022100c79912071cf3d0a950bacf5f8251be851125a046d1e5e5006d9bf3e3562d4a34007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc2e943780000040300473045022100fb137d66544db10165b9c5e67792e7d1c3e98f442f1a4c536d24c994946e27c0022025c76e1ce7d6ff4657f2274224c52a0b7d8cb7a49b87b6c983017cabaf109279
 . . . . [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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