webmail.twai.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:0a:0a:74:9b:da:a9:3a:8d:3a:e8:c4:6d:03:62:a5:43:b0 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): 03:0a:0a:74:9b:da:a9:3a:8d:3a:e8:c4:6d:03:62:a5:43:b0
Serial Number (int): 264753579211981165518655636354084483974064
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e9:64:fd:de:c2:10:2f:ec:c3:6e:fc:69:7a:38:f5:8a:ad:ce:c3:ef
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 43:24:58:b7:d7:f7:8d:4c:b5:37:60:a7:ac:8d:86:84:9d:d4:f4:24
Fingerprint (sha256): 70:8b:9d:8d:a4:69:4d:60:63:89:f5:2b:aa:84:af:4f:40:47:9a:2e:0c:1e:05:5a:12:41:51:c3:70:95:a1:5b

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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxHtREkGOXVdpFRV7FCzC
0/nLsjmwVQq9MhAZfAMZsHdXeYoExEVVvCivgy8LDsf+b0fZWtjIrZA2YyPTmJRQ
EmB9qRjSj+4zAQNzSl0VJDm6Zk+JbDTnBwGwBa1X4clXFYfKaBjpUyGLbncQ7xel
5yw/yD18521UVrdedD128QtgWmFAf2ifSpyy0YkPamJ60kfDOTAi6+ZXjnUQ8P9f
b+aLgtFSu2IWUYS7vaiqgtlciTvIpPGTKNuE3oT4SwBi71UwHOqo2tKj94TzVRCe
E1EvEJhJT7qJKKDwYaksioTEx9NMxgsYWZSPPbTM5mHr8Ee/zE6KfzkjVffHgfrG
gvj8cXPTDkVoJ5ylJHmCaeiWAegmh807rev0DAan46yPQK+fekiEeZyVNqj4fG3x
h8NAhG/cUVb5MFFUOfU38CU1pRw5oLdR9KDsozBZTzlN59SoOWxrL5jj2ZLRoM1m
yVdR1SfvJheP9YIkF8TPSlcHZBkTjkOJe/hFGfxRkDScxZTEZuXWQc/1o1lUwExZ
gXOOJZ59HWaCqr1PYUo433br0gvQm/M9XlLaliMYSJlgHTYgj0+AR+77kX3fJ3is
CtjGgJc4rB9yzGiMSqUJRuXJxajGpj641T3I7xhx51wfD2qEQ1WR+wrNLgyxClHV
6SDyZ7pK2I34ZSgDgCaMCycCAwEAAQ==
-----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 264753579211981165518655636354084483974064
 . . . . . . . . [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 2019-11-19 00:49:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-17 00:49:41 +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 801575425541695207699876643526512024988337304302580076961530627433146065164779671687870962805704946029175388384444208859163080438522713811719012159977223234302191800917863208534347931687366378472253079678150051579897261192817495196892556964556690333251171773550632636561858215401364170515379650658800102066179178059639341682367285453555130378802543370188814656365312156523439562856144233188613847542958922112719575456220280467984603632475984322326297184290556094447562935956280094612268868765355877699660864508281577994162645132502507454770932712463940402342161930377219302634294439449382310264953004188793482567762542834896890439180458162574797568613145965254453367060789252786613896024578521520669054885984081666214248983467048721400969423884741675023768602429936564343855751267580590894392933754468983929260065246925667573394190114159673421862714117302966245962846029933449844112781689640221761370994127416760017940499620941692051521460151597816245885292078358100588656197167464120267204778363991097374089277143145794917417819101819547712771829264877989526626569919498961274221230745168174812680261589899532894680831890105051461941286286064186256553848412891101912929743939623584042765635636849400523589992706729276120381348645671
 . . . . . . . . . . . . . . . . . . . . [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)
							e964fddec2102fecc36efc697a38f58aadcec3ef
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e8159dffa0000040300483046022100c9cf0bfb8b6065a89bc5fcf1ff56d6db31f7c5fb74bb7a0fadcd856c4c4e9396022100b7f20ae46c3bb2e993b6fabee887da3a15e6b9859e56be63604e5dd650865e3900760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e8159e02f0000040300473045022100e19de61b6417b931557ae4e886d12383e3d63fda996e216a0e1bd2e036a1750e022025c717d8aaa7c941b2bab8859a1851ce1f221a61740b8d1747f2461c5b570803
 . . . . [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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