webmail.twai.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:4e:c5:cd:0a:1a:8f:3e:65:1a:91:cb:54:3e:a4:f3:59:79 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): 04:4e:c5:cd:0a:1a:8f:3e:65:1a:91:cb:54:3e:a4:f3:59:79
Serial Number (int): 375254090887828174852406697300106836924793
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 21:b8:d5:fb:15:8d:d6:0e:5c:17:2e:f1:e4:36:37:c3:4f:4f:38:09
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 15:15:94:6a:e1:d8:86:31:4a:96:90:b7:eb:d4:35:5c:c7:39:54:31
Fingerprint (sha256): 97:5e:b1:af:3c:9b:47:33:b1:1b:84:f4:4f:f5:36:8e:6a:c7:3a:43:b2:17:69:65:02:6a:22:88:7a:2e:f7:de

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 375254090887828174852406697300106836924793
 . . . . . . . . [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 2019-09-20 00:00:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-19 00:00:50 +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 796774937035296537322243474016174971811319355861810003323194194214053935756463115067418734199329175186843234458274807446755173104985723562251948418081644286594736221185054198541677674041533549356936197858512875027912036768367045372619578075660458381746944550914703741802658391008611551403145563416867082885095097206167540441834529609170550561292096536550928036049427863650993566436649654263316928495001424107310352065588339936935551483413727028936746370455428836213467191888604889289776221850138700219344998078111781685765526426755981925227785270019435378234724232135286838532535056825366788464028657474250223794571973271290045176395151453400226145157857820520723595604552492412554657835332947133230380789966294083560912194506737146773764958089155143982318498130426585968203301734644172826437921915498088642133240713759398778650328529672026445116550916226415334056747098687899508326966064672984564719975870809967716408810794360193163491032956344379661305400156141092781993154866151551488501591061667996267504227354562839298507495739946739504536787551857080131008215418558857370983579013380911516735274233603003143200820144263432653572569656982194801217102054150900978998623636993282981399940798197172438341739004522474402927429422333
 . . . . . . . . . . . . . . . . . . . . [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)
							21b8d5fb158dd60e5c172ef1e43637c34f4f3809
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d4c2f973c000004030047304502201e94e228631a898043d4b6d4cfdccea5514ce7bdb32d504a0512f77681a58d18022100a6a51d5ad2cf37e7da3a99dc191a6c3237c15b24ced7ff4847e169284aa4fcca007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d4c2f968f000004030047304502201baab329aa86089da5aa9e488a5ea93e266c1e090e1df7b26e103373db0f0cbc022100a35acf5ca33268e4c719a05b24c6659ad73315ded79d4b10279d20ca3b10e945
 . . . . [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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