h8.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:f2:3c:21:2e:0e:5a:74:4a:75:e4:7b:85:c8:ab:0f:7b:19 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=h8.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f2:3c:21:2e:0e:5a:74:4a:75:e4:7b:85:c8:ab:0f:7b:19
Serial Number (int): 430877402481579551627403612208604367518489
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: bb:b6:52:2b:a1:77:a6:5e:bb:08:4a:fc:a2:18:3a:38:69:e6:b4:35
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3a:96:92:c9:b7:ad:60:ec:96:4a:b2:65:05:87:bf:e3:3b:ec:5d:62
Fingerprint (sha256): 5f:01:6d:66:cc:d7:bf:55:f9:0c:5d:72:b0:d1:72:f0:e1:14:9a:3e:25:82:fb:5a:31:24:f0:be:ce:9f:91:01

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 h8.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for h8.org

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

h8.org

Other certificates including the domain name h8.org

(limited to 100 certificates)
h8.org
h8.org
h8.org
h8.org
www.h8.org
www.h8.org
h8.org
h8.org
www.settimomilanese.org
www.h8.org
h8.org
www.h8.org
h8.org
www.h8.org
www.h8.org

Certificate

The complete raw certificate details for h8.org 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 430877402481579551627403612208604367518489
 . . . . . . . . [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 2020-03-29 17:02:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-27 17:02:28 +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 'h8.org'
 . . . . . . . . [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 852315640411214749629346081434467994232036591054114471465734862155355086166719137078969778088970611604988687171202630494957287260503214392087914730458624237472269796952817332474785710690840967929957876806457995966309776240520897538719379273597455947293540658815689199706739223588513721217197420355838196909520827880837996532266309248905365714560985243098594105756480965554387964721444829513016938403573158459480211536553531819715502374905841870136203349422364600188546215955167227216421992919128132355402983868902858504795434201371437793287747916666012681386188426198134328351435603153586441731223301196499204512506331858051948947004262965009744141102388493568029066850073194107783425489688661039873504663984599876148085168786732930607533931655615268956683829095379214016668303237214311258701922493848965947091729851343984905112956666892538129732214838252488906528983963214469751828453782840300530665360884129317064790760307099158136820722209481208846089266980714841455489017527023438889492783113325744986292549371254431740668821637170478934762809510101448932355014327197806274947558086502469507006642933997183557702294403980998764127530855770906479565276932589479735383785630987788054444828552226561040200778427693941330715265915891
 . . . . . . . . . . . . . . . . . . . . [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)
							bbb6522ba177a65ebb084afca2183a3869e6b435
 . . . . . . . . . . . . . . . . [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 (10 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'h8.org'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000171277590a200000403004630440220555d9be99f447914af1a26ce7e56004a58d8c8cd7325fc035323ddb5ec855fbc02203a057bb481f4fdca68425e798c2dcfc4e18a62f75cb97f461621a24212991b7800750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000171277590c10000040300463044022070780aca9a34b75aea3dc5da8ef484164159b626a8f29703c9bf6a6bfa1eb18902200c4543f6824f61add9814abc3240fa8eb18f71dd8cc6b2767867e915d988d40d
 . . . . [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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