www.lettura.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:0e:6a:56:30:4e:98:5a:37:cb:2b:69:fb:f2:a2:b3:0f:48 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=www.lettura.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:0e:6a:56:30:4e:98:5a:37:cb:2b:69:fb:f2:a2:b3:0f:48
Serial Number (int): 266242156617039521945750182544782392495944
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d0:64:64:87:ec:12:4f:90:d4:55:19:7c:f7:0c:d8:41:36:1b:ae:e4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 19:ec:52:bc:b9:59:bb:03:65:75:84:36:4e:90:16:bb:46:e0:30:d8
Fingerprint (sha256): e9:09:7c:ed:a0:65:1f:4a:7d:29:d0:eb:6e:5f:3a:2c:e8:31:fd:98:47:7e:83:5d:b6:50:49:bc:fc:79:01:81

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 www.lettura.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.lettura.com

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

www.lettura.com

Other certificates including the domain name lettura.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.lettura.com 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 266242156617039521945750182544782392495944
 . . . . . . . . [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 2019-09-27 13:30:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-26 13:30:43 +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 'www.lettura.com'
 . . . . . . . . [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 734859359695474686768910355620253804572607845470528882885335534175102720921977653957652447373635698785561275429206305632006814574280381387463176910497807203504467162091812176645369133679197839048062999200894943231321202031927365532543151389853587520628282302183410048332456649122854926971853621019018029329188656970126362091225964206261832994567786315485894361339285168627729370236403379702101400825079726347783743670572628043657369505088779754177476714794764491189844531815441447011797083644900425830898917657403941429935706766600975559975695350839347397750925148871559027180830254921447691671749987600032512374122052300300459151345699415101416982052344642337043822177003240740815263632211646000828487018113380027252723553642602524944666629720766420613864557456535777800647837948489518237221619307767353138933016968727684738242781180633925441437209692580672054105116775842618374541605458344781675400649917975370996099260579006309693125283864886151124888257143731819256142512030002883733559119097816405057394337005321385971902476982325945969135530241005100268117717668824808707409980863904853178918284850764597587240099138287342562462303196563728719644877322836078051180193828238475159489355678496971506783677894198915989644153514023
 . . . . . . . . . . . . . . . . . . . . [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)
							d0646487ec124f90d455197cf70cd841361baee4
 . . . . . . . . . . . . . . . . [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 'www.lettura.com'
 . . . . . . . . . . . . . . . . [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)
							00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d732195e00000040300473045022079b79f3a05d64953a998f062da17c2db280808b0681dd506ad582b9432c6847c022100d1725d5e466c02dca5324c9c2864d25fa651aee3d89df792ea85899ec752c93c00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d732194020000040300463044022048da25ea3757118ea7ac36b25dad005cac7e7c9705cf042604f56ca8f4e7b63402200998f75c6f2f96e971ec698a5b6864959ec5652737d414e27548d8b8c85c563c
 . . . . [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)
		0014aad0130f6f31b5b9547d475930f9d6d4377f21bc85126658becf25807a5b13f541ff97f7a8894efaa01c0f4bae2c097f7f5b3ed118debe63b0c196665e88cf5113cbaf5ee41d96e7411bdaeca3b0eda04d14640fd04c958837e8c4672665ed16c2a590b450cca7ebfd815f88bdd9dbf5e75700469d8547558eb80afb36cc441ab9cb734b03ce8a326770f66142bd66b9ca290a3f3b76027b482a947fe65f8dfd0f6bc8387be54b8b650226ef96809bf50bd82b706dabc95e49a1152201fba67fe544af28410c1b4330846afeadfac0f897b405cb8dcd8efc32caa7fcb8e70353f03f8babcc5e1a869ca22d75c85e578f52cf45a10ad4828a609b7e214c7fd1