crowdfundingninja.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ee:c0:aa:77:58:b6:f9:61:7a:b5:9a:ca:4e:01:0c:53:57 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=crowdfundingninja.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ee:c0:aa:77:58:b6:f9:61:7a:b5:9a:ca:4e:01:0c:53:57
Serial Number (int): 342580158008756197902902984828887600223063
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 24:2f:b6:c5:db:1c:df:1d:90:c8:13:f7:dd:35:9f:46:58:08:a4:be
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 5b:2f:2b:f9:7d:8e:71:5f:16:09:b9:46:8c:66:65:5b:8d:ce:61:f5
Fingerprint (sha256): d7:8e:28:e4:3b:b4:31:19:a0:c3:24:03:52:d4:e7:c2:58:50:23:40:54:b4:4d:a0:f6:b4:7e:33:c8:ad:b2:5c

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 crowdfundingninja.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for crowdfundingninja.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

crowdfundingninja.com

Other certificates including the domain name crowdfundingninja.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for crowdfundingninja.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 342580158008756197902902984828887600223063
 . . . . . . . . [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 2019-12-25 17:17:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 17:17:57 +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 'crowdfundingninja.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 856523418603837169871853368570488601770837818782734563453612148465814879764542209190886534405448316595402363163837192797565198010612339775838754536041469447449380458186880537227272791390085808009875614858799457014258314393207930201236693793467479604923151336611741832798996243072321814478310204653723082363317578762295290627562230806863776261450940609569907799534657521569203354951835914275650918327272014648398389018692073841583901894704676581857355532505231006035160473086587379286649097018328088596363707275877483434156548979377758405420351263031176490153959203856061895557374675187483949045868966332668990978982378983231415108841342031491525997743499413841182808596880535687259456362197566471224723691808414276431256630773464112869759992895843991566928263853574259844710050668592457560532118137802449299749273329868872840660981280519787387328029377442776975624682179538971503460697015643176765323479970931911476088404605006583265165612489980017928754101894333697827935878162777406460640580115696998655470028929595923021172867888137425412573935472308973657794560445634328082040447512394621481502071530921569274659232878229384331416436856703201486100355194613632953227418611252663608377187845142104824440405115127772600644337366911
 . . . . . . . . . . . . . . . . . . . . [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)
							242fb6c5db1cdf1d90c813f7dd359f465808a4be
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'crowdfundingninja.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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f3e47995200000403004630440220286e16ee9532ac09714f7bbab0d1c4d8ecbe1893a559a863528fa9d7901c41de02202d59392f56950e435e0a89984ecf0615ce8466939ae2d2a8c68e6f8b3253b4a3007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f3e47993c0000040300483046022100f2edb33490471c7b74e89d9919564a1f558137b7ba356519345d66af7765a6fa022100f2479152013037159d3f87f1417cc392c5f034891ed1f92e87fa768c5c99dc2c
 . . . . [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)
		00448d680082ee553b8665b3d84fb8d9f2ef4859691931b0c3576cb17664efe89d41640fc5629b2603084001483aba05e4915e59285a62780c0ae717f5e6bde2bbbf26242415b013f7706b8fd17a793a695c95c114e85b97e1c7c7099abcc93ad336490454da360a81822d635a2a2085ddfc65d559c9fbc6c4591e5ba33de04efc29c8f2a3039c369c16de07eb874b3642ccc86ab55deb871d215febfeeb6fd563f9f6f72c7ed2fda3fd25e155c111f5e6adf21834b715fc6d2b06d3e2c7f2eadbab1ba7ced8be72631130040d51cc1617d585b7cce2a9f8620e495edf9a1b4d462d7cbe855fcabd4929dd9b97a88c5d87e8665d0c267c7ad906eafc4aeb71c56b