www.durafon.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:03:a9:c5:7f:a6:f2:a7:95:6d:1f:7f:fa:5d:79:a0:df:c8 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.durafon.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:03:a9:c5:7f:a6:f2:a7:95:6d:1f:7f:fa:5d:79:a0:df:c8
Serial Number (int): 262583369898905330083589622122018383126472
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7c:14:ab:51:f1:db:1e:fc:c1:81:e7:44:af:b3:6f:24:53:a1:cb:3e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0d:69:b4:9d:03:3e:54:e6:92:ab:25:6c:fd:ca:88:bb:d2:ef:05:81
Fingerprint (sha256): e3:29:28:ec:e3:b7:07:9d:93:77:7e:e8:90:74:ff:f2:69:d6:10:eb:cd:47:bc:19:0c:fe:47:8d:a8:de:9c:48

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.durafon.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.durafon.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.durafon.com

Other certificates including the domain name durafon.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.durafon.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 262583369898905330083589622122018383126472
 . . . . . . . . [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 2019-10-12 23:54:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 23:54:24 +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.durafon.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 754701896469345418962453405123007310639215559320621859531909989455162984258230122457279220483862970349826312376036562128933507597378442357544351410176679183630597426259011691111652734286749487048352727997741939016595820214864287320394482246398926749279468873696232405394392469055057963560126292775693059291937792785629633797139383736166289441826289322338471321979522665913709085456295957063388450277464378244567890310704565695713587896043848821116292697085679504638508084506268102385556747553468683711547006165980247693238115738034385755043624273068585370425001286542970067275745263719826005505019513051100258317854461757440011045296563437495107567403997590059035948098913912541183513289551862664386363590903655751019546750973075917918025270206908940407878629229881272399139910175718994827700581230988473878139239163610446949376501087748811707067274907032678732408843734924316945855670898047811367378313088901848733957579064985828060265268064016747469825206665767115414568166607665200515995415957301240958048965702416302832561987718363160218461991178002948608458142212797740095877361911856475078635104121656794092140321548529766228245383511980795782653222827722340729493691284502438044226193914551189181434264473104524665079054224277
 . . . . . . . . . . . . . . . . . . . . [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)
							7c14ab51f1db1efcc181e744afb36f2453a1cb3e
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.durafon.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)
							00f0007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc29bf802000004030047304502204f67177689111442731ba7868bad29b52c4bc3ff34e14fe2fd6a1032aa295aec0221009fd0112b24447cf3d102e576c9c7433b62d750e032424100ef72d32b6010536e0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc29bfa6800000403004730450220366dadb7461dc6b5a6a5b69dbe7af23bf057c5acc851a63a967d8a91cc04b227022100dfd0cbeb1005321ef35542d7c235388fdb6bb1e1d9d140c60d566fe5a06730d2
 . . . . [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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