webmail.twai.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:b1:28:2c:0c:b9:23:fa:b8:11:80:be:74:06:4f:a4:3d:d9 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=webmail.twai.it

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b1:28:2c:0c:b9:23:fa:b8:11:80:be:74:06:4f:a4:3d:d9
Serial Number (int): 408732520510997527171840613903795677838809
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: af:90:0c:e5:ff:4c:d8:c4:61:a5:5b:14:40:db:a7:9d:85:64:b8:e1
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c6:6a:f1:6a:f3:5b:33:1e:f0:fc:db:fc:f3:d0:e4:5a:94:1f:74:de
Fingerprint (sha256): 7a:5c:7e:f0:6f:39:fa:42:ff:98:49:03:e3:2f:7e:9c:ee:97:20:9a:79:3c:61:34:b8:8d:31:63:8d:dc:51:dd

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 webmail.twai.it

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.twai.it

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

webmail.twai.it

Other certificates including the domain name twai.it

(limited to 100 certificates)

Certificate

The complete raw certificate details for webmail.twai.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 408732520510997527171840613903795677838809
 . . . . . . . . [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 2019-01-22 01:00:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-22 01:00:46 +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 'webmail.twai.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 950464079871770327219607079358505544140768053039731763926726843434694139867260536941026225317297813043899402060945372166605451959754168662596515576649873387329494616218442334976505259143936784904847684702118324816402134115406966632177303272461309858043047181451763230545199889033189634631226086576018818349885083781914467213520835756932554717496431254482769023933516142221766967476325126753850599447725982180939936126002523515657000267517231891044912737441096304327923367616961574816426812277788803297982511154105256941830934910957510884032548142570100139527670281638407822918301078893462982420933560091656541522877134262457144895199030577204920724950325460955283719351688406713382855484129632418615298827080382137869707940082420863518969162344174850196281373966431459023726460367702775788805471298529166405787130507986245011531135114627407756041618855402573410393221702441441087806541139404652821108235101930716110241054755821764501637910633065929661913970816891350175781303053811626506446174286004200539080340019567425083865521578078609180707250491666961841245151170615431020305742949065155328164920668045243373511933189080740450638352624284059314630313222525402835576208816683337857013911783835559192823297187931373817247189557557
 . . . . . . . . . . . . . . . . . . . . [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)
							af900ce5ff4cd8c461a55b1440dba79d8564b8e1
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.twai.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 (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)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc56000001687349dc3f00000403004630440220507dbd4f118186a664cc9c28568ff2f16f001880a4425defebd66d07c4dffd2502201e63b4b8d6893131d0f8bbe06fb66580e6b32ae370ec7fc50e50b83258bdc508007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001687349dc3e0000040300473045022100ea0d18a4803cf62085295873f7f5e30e5436508d0e019f767a115af782d0688a02207f8bbcceb4dfeb52a0a7c3c9acdcd21d78a7c1246376099383bb8086a297831c
 . . . . [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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