www.sangiovannivaldarno.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:d4:c0:57:d7:8a:94:64:9f:d1:77:a7:4a:0d:44:d0:e7:c7 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.sangiovannivaldarno.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d4:c0:57:d7:8a:94:64:9f:d1:77:a7:4a:0d:44:d0:e7:c7
Serial Number (int): 420844673390994813859165630393188166461383
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5f:29:be:16:97:d9:a1:93:2c:53:ed:f2:5c:eb:0e:7b:ec:8d:aa:4f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 22:b1:a8:d9:9e:5b:5f:6c:65:42:4c:47:6e:50:5d:8b:a2:ea:c6:9f
Fingerprint (sha256): f9:68:1c:2a:c6:0c:71:7a:12:32:73:76:2f:3f:63:c4:e2:b7:b3:f1:dc:36:d9:2a:8a:ee:77:79:9c:0d:87:41

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.sangiovannivaldarno.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.sangiovannivaldarno.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.sangiovannivaldarno.org

Other certificates including the domain name sangiovannivaldarno.org

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.sangiovannivaldarno.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 420844673390994813859165630393188166461383
 . . . . . . . . [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 2019-09-29 05:09:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-28 05:09:10 +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.sangiovannivaldarno.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 811375880663963582574130935092008742353752628788109678607057924881227120420871263604414709559761857086587868358565766398527779731688599343251531398065237222904276721507766726567267367823347285384387170260570785943541962342999748200695576267073623424332472158226029200760804967260059728549170448358051637996777928598530372194923651629602151283561822722369465558209134352770469900146609294268624822065498757815944461670712614478904084763171392852771810426986511742922252502806191986750175754239334107401653239486035595290327649884588679406684514922433948053848582223782986037068938004969344643592750495859795249534843518881982357371298897500266010170235967703123059592082548534196600055173955681997673983800777900310057025180156072660468819344642173925478230507578320181625195959064838668479305443683383666483648136308254758051111792244165691928270553756746657595292383015284975030172682434841165977392682081837483883022632385714484253271891175868927327207736423001593363126423147560486223774748135624514966167555652935332496247918652293647762713810078509200705054390568745016715562273976793478171664114060248435805904744161866538451597011147890993638672019331819975004946106323641051540928705985654536706376077714019976449783357818899
 . . . . . . . . . . . . . . . . . . . . [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)
							5f29be1697d9a1932c53edf25ceb0e7bec8daa4f
 . . . . . . . . . . . . . . . . [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 (31 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sangiovannivaldarno.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d7ba31db80000040300473045022100a8a5879411345b52617841038fb1d2c07ce7a74bc174b5ad701b4c03ef9335b20220232a44dddbc41aa35d72adeb6f6a7ec51e5a1dd1ea2a810d2a3c50544e374f00007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d7ba31d850000040300473045022100c9bc6a1b369654f55b73c21ba0d64d8a8b48b56f0c32d823e389c6dad3e2c4f10220241e8edee23fd42377a56514b2831541f57b2b1ee9febef2db83931a7258b0b6
 . . . . [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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