www.contrattiazienda.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8d:71:e3:85:4f:eb:f7:63:fa:01:2a:20:f6:25:4d:3a:71 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.contrattiazienda.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:8d:71:e3:85:4f:eb:f7:63:fa:01:2a:20:f6:25:4d:3a:71
Serial Number (int): 309468055649936176366127886473693468899953
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 19:16:90:d5:d8:de:6f:b2:7c:00:ba:2c:0c:75:bc:87:0e:e3:9d:45
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): db:b6:4e:1f:6b:1b:40:a8:6b:e6:36:14:4e:ed:29:d8:7d:5d:df:e3
Fingerprint (sha256): f8:45:17:3a:29:b3:f9:27:8f:bf:7c:a8:b3:ef:a6:10:e6:2e:13:31:2f:43:18:c8:eb:5c:8a:fb:7a:17:54:aa

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.contrattiazienda.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.contrattiazienda.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.contrattiazienda.com

Other certificates including the domain name contrattiazienda.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.contrattiazienda.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 309468055649936176366127886473693468899953
 . . . . . . . . [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 2019-11-09 07:12:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-07 07:12:56 +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.contrattiazienda.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 877877418349088390341015990651246760868508477256288829133496767265199744776984022545739480481119279323458546765322861406536030943830959598516071338509357751575282962519883015126119314030239154250068980193803516242858665990185445019475430194360542166218647556096146827392277849190825726736121503372241990280939968881920954710475338954106286028495769527149834998519508880518062951114220279077205679562568967491679799156168311826204912086247347521653052511077033372195669442295072315983346201149537601787911101670822149522661378461861500108550568068952434857047725145529065591506580943807751645912743173821820069697583694091866201039105121779520690632273869521833753270676455542892331887151763358158609396255315964392734334541555056894415253997018781630368343073086782511179351461100914235120129178065805765425032375347765966481744143784155290627555234220121890030228043917487406450306546169838062338588731057014376477883489542075055425648314523093773849659038151017600268001255308349644849956105447413398193244235246870146850958195344519075395208723010398877585974955525358213032747534677512152735874258069185307715941535928612196031431608944819742080912913180317950493116814063867233632943021836321258168286617309569991685977207101011
 . . . . . . . . . . . . . . . . . . . . [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)
							191690d5d8de6fb27c00ba2c0c75bc870ee39d45
 . . . . . . . . . . . . . . . . [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.contrattiazienda.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e4f3927b60000040300473045022034bba59007a78bf9d6f6f7a7cef89e77f880cecdf4217a1cc9f2e852c55c52810221008ed170aa1e5c2b209bb042c58796199b3b767934da04529042b2a17a1b7595ed0077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e4f3927ea00000403004830460221008b99bb368749b8feaf702402c2bd57c947329bf972d79d3d9d566e77029d4e7f022100d39175de096b4721dc2a5043feeb42fa2a15e97f25e4a068a1236afbe0e1f711
 . . . . [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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