mail.1a1.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e6:6b:f5:73:ba:eb:80:ad:b8:61:70:26:b1:83:38:72:22 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=mail.1a1.it

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e6:6b:f5:73:ba:eb:80:ad:b8:61:70:26:b1:83:38:72:22
Serial Number (int): 339745304042662340755396371454347192070690
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 28:3f:b9:36:20:fa:57:7d:38:f7:cb:3a:aa:4c:47:98:d1:5d:9c:70
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 16:bc:e6:be:b3:1d:2a:43:2c:cc:9d:72:b0:3b:47:1d:02:70:62:85
Fingerprint (sha256): c9:e4:cf:ff:e9:ae:5c:d4:a9:1f:af:67:a1:5d:5c:92:e1:c9:4a:d5:c6:a6:89:75:5d:f7:33:b8:4d:c2:ea:d1

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 mail.1a1.it

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.1a1.it

Public Key Algorithm

RSA

Key Size

3072

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

mail.1a1.it

Other certificates including the domain name 1a1.it

(limited to 100 certificates)
1a1.it
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mail.1a1.it
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mail.1a1.it
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myip.1a1.it
mail.1a1.it
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mail.1a1.it
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myip.1a1.it
1a1.it
1a1.it
1a1.it
mail.1a1.it
mail.1a1.it
mail.1a1.it
mail.1a1.it
myip.1a1.it
imap.1a1.it
imap.1a1.it
1a1.it
mail.1a1.it
myip.1a1.it
1a1.it
smtp.1a1.it
imap.1a1.it
1a1.it

Certificate

The complete raw certificate details for mail.1a1.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 339745304042662340755396371454347192070690
 . . . . . . . . [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 2019-03-17 22:31:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-15 22:31:14 +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 'mail.1a1.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 (3184 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 4240485318214727138229200980029439732512964902442271626394950456444423816934357412545262094446391634458153530421620531598850669189314857664658947398011993971520550410745692332860980875660377733879682468869432682150807319866874937872859832590588389033946325695266388628226984087444530497559145963231215768742644753887486395769970423713349391415843311883910581281410518665323551095019929819349525675986559703114771804973375717734884479862050953396866145644030444272990557925099423366941617769445611752608620475339510851976431710081273795708680955508635142617399348793841542538398311079824201650749589890015885669664923318235156412474409188027149891719461849908859209208788105750935348698815673690403716018410083142924991699307640779172580789401454444388428689403685828416595668975134609256642210338075573186819852027901963771111218561167028862387717998590309733841888521934726874542117803843458144214567649852468610850141075457
 . . . . . . . . . . . . . . . . . . . . [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)
							283fb93620fa577d38f7cb3aaa4c4798d15d9c70
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.1a1.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)
							00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc56000001698dfeb91a0000040300473045022100895ce42a002951801bed45727cc1dca8cc5576ce4cdf14bafa799bc555c4ce6e02206ac559f1b15448a2118da7adaaff6357c1b90c0d2ce12286e26b9437b048f21b00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d000001698dfeb93a000004030046304402207b0cd8c8a8c640afc93a6cece68f80cbd0de86946b43e8afead3d2dca4785f5e02203b688ce3a7dc26e3185f64c3f1400de3fda09978ab926e941cf087abf1086f7d
 . . . . [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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