webmail.twai.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:95:5b:0b:e2:f2:d0:0a:8b:ba:26:9b:f4:9c:c1:c4:6b:00 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): 03:95:5b:0b:e2:f2:d0:0a:8b:ba:26:9b:f4:9c:c1:c4:6b:00
Serial Number (int): 312159951932444613608326014325919106493184
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 69:ee:97:a5:1f:c3:8f:23:6f:3d:dd:15:a4:94:cc:35:d2:ea:50:17
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a2:ce:0b:8d:1e:41:64:4e:1c:1f:1f:54:be:d0:b6:a5:f5:bc:49:25
Fingerprint (sha256): 34:df:7d:32:85:05:77:91:da:e8:7e:2d:d2:71:86:0d:1b:b0:3e:8b:4f:f1:d3:b9:cf:94:b8:d3:7b:36:68:f3

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 312159951932444613608326014325919106493184
 . . . . . . . . [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 2017-09-29 00:01:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-12-28 00:01:44 +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 690166459629551195978926373551730872380526114088073867381983035457184541872202867368419958920618087275059547004082824362867031540523330781192381632770437684394320905079515266103463187228505560763932912835310981727091671519085845300976922438141572858895516819735846339094871845389172854901571827101839912644450994962949991585995094130581149400880390559093537173230021876510964746900178520443435660680356499854276420477052744300744421456290842883298983315141055530688499582667082712648248071826238970170497884967454867051182053779132684958366252809939666179296900484896690727614909197587443035050472296570740363742225250109672108800905957089256458717558372767104771595565600681424716109127047618163679402348125406149289037764877092455920037922467008442525285377343413074202700166058771639422214881121634966131040317576581174026585697600072927168830886114754701602223077800804378923722621175612772544016095422819680213245249778373254211072660937817962468547949617107654658471686356770717434280271847070175894421039350537967217353131848942255786855005170590745436698421603014754730462636472039164725035496986049703173209812522630761538137488368430313480341832940045292518554026235014269063070213670227888221753717303800025608987118647037
 . . . . . . . . . . . . . . . . . . . . [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)
							69ee97a51fc38f236f3ddd15a494cc35d2ea5017
 . . . . . . . . . . . . . . . . [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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