www.dirtiestpornever.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:0e:f5:f3:6c:ff:11:3b:3c:6a:5b:f3:30:f9:2c:af:58:9c 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.dirtiestpornever.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:0e:f5:f3:6c:ff:11:3b:3c:6a:5b:f3:30:f9:2c:af:58:9c
Serial Number (int): 266427735729986558272946210191281373534364
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: f5:f2:5b:cf:c4:86:68:19:59:6b:39:5b:3a:43:d6:7e:fa:27:96:bd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c0:f8:90:a2:16:8d:11:c9:c4:ab:15:3b:fb:6f:ef:3e:81:e5:6f:e1
Fingerprint (sha256): db:e5:cc:6e:2b:23:67:20:ed:dd:fe:46:71:09:f1:71:dc:0b:15:88:00:32:d4:d7:7e:27:32:5b:e4:17:9f:90

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.dirtiestpornever.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.dirtiestpornever.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.dirtiestpornever.com

Other certificates including the domain name dirtiestpornever.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.dirtiestpornever.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 266427735729986558272946210191281373534364
 . . . . . . . . [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 2020-01-03 01:12:05 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-02 01:12:05 +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.dirtiestpornever.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 681715173950975240188413027966032272515964071622715412966395452558227734753258830482309479200112706408375286850391949936035040125200053728510791218753945637012877673661480809705127369760411703546796350198545115314751627017328478858707857460929501905553939270307440419361458528060257252446496089106780278031640476751446911617750087701975789614116502403456624019517731734948690637619081366068332911576303435994228577979952057384805498366825912650493530382695679026584157351624211870473613687703359370929726444527363836303836368258999691228129676751373454602430646252992248832524846728671156539103391765732108210529637522633062674273639812900329663209624312170448172928225518956137789962036779083648430110828170206616316046890978476357023454615307359921716462417878060675680517989508108331038803632529571747877575386600555529645650764693336945509190384394395301172116483558495867431621723402803406726348558468945239680894458086023975589655816618008838552303495320083485427843867950354195572130281822133171099833874735249781256888859491518153231114499209523610372938330064059230411569520901940921171994195831122965035065572839160452470622912451306208525049263002946403956991142432409148344163905550919058600588328843886776303408114940343
 . . . . . . . . . . . . . . . . . . . . [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)
							f5f25bcfc4866819596b395b3a43d67efa2796bd
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dirtiestpornever.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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f692c8fd0000004030046304402207934976ec7c451e913ea7f87c98f1a6a6a31d9efb5af761438e0dd5951fe5c150220721939d362fd43eae966dd431814ede354f0803909e1c087d0c3870069752ff000770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f692c8ff40000040300483046022100e28cc07daa6e542d959d6563e5d5e059860a526e879c5402f427b9adf20b4314022100e46f59c867a43e7df234348f3781fb3e6ebcc7d3a04cf1f26adb76d6c99aeab9
 . . . . [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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