webmail.twai.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:20:e8:83:5a:c8:99:eb:a5:35:01:4b:60:f6:7a:85:d2:e2 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): 03:20:e8:83:5a:c8:99:eb:a5:35:01:4b:60:f6:7a:85:d2:e2
Serial Number (int): 272534956463971472231374427969978181735138
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 74:b2:98:5c:64:1b:3c:4b:3e:a2:29:3d:60:a2:da:42:a6:89:3f:fc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8f:38:73:48:1a:92:9e:7e:5e:b4:13:9d:ce:cd:95:d3:af:f3:d9:6f
Fingerprint (sha256): b8:3c:ad:ae:2d:1d:9b:a6:04:e7:72:7a:1f:bf:53:c1:fe:94:39:bc:1b:63:59:10:2f:6f:55:6e:6e:87:b1:a1

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

8 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 272534956463971472231374427969978181735138
 . . . . . . . . [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 2018-01-27 01:03:21 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-27 01:03:21 +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 670916096731618955632862324184380861189601779908919833146416950351506562790718471877156843976969132105346383446894554479383682064182982973365483622493750677801468531416814917132561317529177405284630781275591362415008118541898095778440927755510270143943241343170327635341051328296902710432322821432801260770680221492026197536616441015626758903651971222207806882810490472168143640140643879489755809085567189966804358251354816394101245409903115144493364169505600949254980726927987448153620825070166439007328805454083748428239836055449798173757352156338868851927037046357316412932643520968881140338824670609523296716863634340683420797212731433560297557768390845886438889219554820162520881494487517662746529196272597101670957121485657787513785228620167404029592920992792372967059402576157178235698020936691638189714962347842145879447657327951608045636787509852028097578766173100955821126253223906582918040375587177662005894110151146977401511513712826014128002513752809329471261359796307093063931362407092647940103385693625368511725744851573783568477666836356508365770890069881137061255793940805226893395350719547443461828896712628019051339224200145666651382415001846448758544924374006639518707231842713616555668271437949456199671667209483
 . . . . . . . . . . . . . . . . . . . . [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)
							74b2985c641b3c4b3ea2293d60a2da42a6893ffc
 . . . . . . . . . . . . . . . . [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 (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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