mail.1a1.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:f0:a2:85:98:0f:fd:76:0a:f5:22:14:3b:37:31:50:ab:50 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=mail.1a1.it

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f0:a2:85:98:0f:fd:76:0a:f5:22:14:3b:37:31:50:ab:50
Serial Number (int): 430332940383058683926435472205607913696080
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: eb:2f:56:bf:4a:e6:cf:2b:ae:7e:ef:74:c5:fe:a3:96:e7:ac:f1:b1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 34:4f:89:a5:3f:33:f5:53:f5:2b:5f:35:26:86:01:1c:f6:35:9c:60
Fingerprint (sha256): b2:73:ea:78:ab:3a:75:25:97:81:d3:3a:f9:31:7a:4b:7b:3e:2b:a6:62:05:2a:78:ae:14:10:9b:92:f5:ec:e0

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 mail.1a1.it

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.1a1.it

Public Key Algorithm

RSA

Key Size

3072

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

mail.1a1.it

Other certificates including the domain name 1a1.it

(limited to 100 certificates)
1a1.it
1a1.it
mail.1a1.it
mail.1a1.it
mail.1a1.it
1a1.it
1a1.it
imap.1a1.it
srv1815.1a1.it
mail.1a1.it
mail.1a1.it
mail.1a1.it
smtp.1a1.it
imap.1a1.it
myip.1a1.it
myip.1a1.it
mail.1a1.it
mail.1a1.it
imap.1a1.it
mail.1a1.it
myip.1a1.it
myip.1a1.it
1a1.it
1a1.it
1a1.it
mail.1a1.it
mail.1a1.it
mail.1a1.it
mail.1a1.it
myip.1a1.it
imap.1a1.it
imap.1a1.it
1a1.it
mail.1a1.it
myip.1a1.it
1a1.it
smtp.1a1.it
imap.1a1.it
1a1.it

Certificate

The complete raw certificate details for mail.1a1.it 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 430332940383058683926435472205607913696080
 . . . . . . . . [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 2018-02-11 11:11:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-12 11:11:11 +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 'mail.1a1.it'
 . . . . . . . . [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 (3184 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 4928362355895346406485475543072941271762546315686398763009618661530354003559851259983293199746122582967179568636260503833927324820392253305126519013528921446953083327409681439033908295817249956285344256188693832926105622214798746201550478338653651192345489216469762853097518321207465399662102437660116171891573876022053003740330002479784059977376052631627459672833894814675960092689205691929840416927272203834013356187692720856002309253180666512338828659527876789403182153814591799572019308219283502118974925797263373447733926786871620843917796318858966206889432329806861692066957834120848706495729321266729991588629945882194956087995341391244133563935092727581980836542992866044157328822034249693957002620104222343961132202527372160668141999479154367019819030356847255977478828525873108121105500810643593909202385610680669105150728704744126819305304988564631929035972090434817667499053483085522287766945429266905000158026619
 . . . . . . . . . . . . . . . . . . . . [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)
							eb2f56bf4ae6cf2bae7eef74c5fea396e7acf1b1
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.1a1.it'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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