www.capraricadilecce.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7c:95:06:19:5a:17:7e:b4:4f:08:f1:05:47:d0:ac:af:c0 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.capraricadilecce.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:7c:95:06:19:5a:17:7e:b4:4f:08:f1:05:47:d0:ac:af:c0
Serial Number (int): 303729957932828259132297205626440797433792
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 04:a3:fa:52:b0:17:94:b1:51:d7:f6:46:60:4d:a3:bf:25:06:57:9f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 02:2f:7a:67:43:5e:b1:26:17:d9:5c:77:3c:58:79:db:da:39:c2:59
Fingerprint (sha256): 6c:5b:2e:1d:c0:45:aa:d2:a1:38:fd:c0:7a:b9:e6:49:b5:24:44:fd:89:d9:3a:db:be:24:c5:14:ae:1e:5d:cb

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.capraricadilecce.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.capraricadilecce.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

www.capraricadilecce.org

Other certificates including the domain name capraricadilecce.org

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.capraricadilecce.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 303729957932828259132297205626440797433792
 . . . . . . . . [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 2019-09-28 08:47:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-27 08:47:24 +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.capraricadilecce.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 685768518919049329781306092595961174936103614080186675919340948187826176482624036320364873648757462358894359791563603873950132039704249642491368944763118039118278489221331493297388464814833176442730901228160566194113674123498581503705258489452887198819310647401123843940032124695816049202425850865161720534179989635870240137473654403862933783990830411509545811565010940049306612800346932206028950212663594356277928906850817006217282386449838167055958998237368719531605887421228893731592458598202985091183878036277470331606802960081279818039054756771083315561334779505464873638095573907680195661205555319171222747048369075899031487364619270555336833197885693343384593355355848561879351592108333384357039792109212377690135407985318919572804702511396584152152271188348341095740929505914720127368849187879530949911933423167556997044603386244214751538761221802347715485697119533936194985929805049532523683791052001345011849495210846618662622134743499994986887556244725965363293567145020967968330566612890064878940831942066371902594003735233716717503070602169522672087770132138398353654433918854585307939328191035227972311266097529727510700136508229235700711921230702411939083055499304100870355916697111720138537900473106633872315375267573
 . . . . . . . . . . . . . . . . . . . . [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)
							04a3fa52b01794b151d7f646604da3bf2506579f
 . . . . . . . . . . . . . . . . [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.capraricadilecce.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d77448fbb0000040300463044022052da8b1491a043d6b9c9917b1f3dd17dcaf7cb173d7c95ecaa55aea1e4246954022018024cf3160aa086e4729318a14d6d096df12455155526d97ec8c099f98dc535007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d77448fd2000004030047304502205fc03733c0dc6df41c1cd2d33c912e8fb4e7b1ca458639b3ee6d6e9c9c2171f4022100aa7f46ff356d8e00f0b6ce60db9450d463e12b31221f6983e31540a4caf1744f
 . . . . [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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