www.lettura.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:ed:c9:c9:07:74:9b:ee:5c:f4:f1:5c:89:e8:79:15:2a:65 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): 04:ed:c9:c9:07:74:9b:ee:5c:f4:f1:5c:89:e8:79:15:2a:65
Serial Number (int): 429364283317340328435182226621701060635237
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 06:92:3f:52:e3:9c:81:fa:77:bf:1d:86:1d:20:6c:4d:09:6a:9b:6e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 84:b6:07:83:a4:3c:2b:68:88:b8:f2:e9:ee:8b:43:44:5e:5c:2a:23
Fingerprint (sha256): 45:70:84:4c:e2:6c:ec:45:3e:fa:8e:e8:af:f8:d1:80:47:7b:83:e9:48:96:52:82:75:fb:94:c2:c8:49:c9:b3

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 429364283317340328435182226621701060635237
 . . . . . . . . [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 2020-04-02 19:41:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-01 19:41:59 +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 649218925298588762661833039691424887200501048695707652631211407825880242734636329498854143930433484393172253320261801210517979000615231875725866230478016280310081016515436647473083664611279358925566196998748537811453418468760184191573664410810717780393856298094709842840297862541093585132345853143510572865323319765700545062697163925559386622564206638325133033937951691056397356924049574571962951133520346733653357795838506225744830873850450492754046223061214958139604355045317055955384702815299797909013686452662837301686233261599824130469483136276153136826079075266027823729543471990551644548018523201092915002415582263151360056848760409305835566360792214281028477745449992753292103197458482364804868847364339531393753571770109205589993107707013145811966398674655915433966340591820292959597148258188302893541809781502325516686702130366879061244617938990922122983666332616081022757950800496994634213318844299018196450076892776945855671785315350217169715847223339404175452195421522263866930894874734836485103183766330269252298035700644562214006627300445144132854189030956962408189949584316376777291451673304662027242187915054375109284986277779544019748288396345301576748015511782127115106671117926821273681645750532322546592266432239
 . . . . . . . . . . . . . . . . . . . . [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)
							06923f52e39c81fa77bf1d861d206c4d096a9b6e
 . . . . . . . . . . . . . . . . [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)
							00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001713ca10dfc0000040300463044022010900f3bc1dca9d140c27788210402485d58d4d9c500042a49bc149ad825d65b022009c41102ed4e25d310b220f2ca23eaff76759a3c6f4bf462d4612784e69a44b7007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001713ca10dfa000004030047304502207dde072b8b9867113af550427fc4cd10b5ae9818446c57b932ea3cdbc3ef7ee1022100869d6c07d8308c8fa819255ff656abaedbfc63d7a4b90faaac005442b7aecec5
 . . . . [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)
		005d5aed33970baf5710571de880efb80d92ae370cb784bca987a9b22ae85d78420a792c703d9a248ae7a2c10d3b6728d561987e103653ce6a047e385bb14823beb7edba2241e68af514fce69148218f9701cc2a8cb7dd3f1c67dcaa199f391a3dd47116b85dab17d96fc4eec2199e57eba58a18462076ef5be1ebe42e599fe428e7620b24d82f1a5a1a9379bc10ef0aceabb348750831ca4be1a54dc0ce088c749550610a83491ac39cde26b9ea1bb21615f1118bfca4db841cc8ea897d169882d66b4b778aad2328ac7c8a0b4ef4c7ae23339ba029083e4a4a35e3b3c544e31eb20abe3ce485008e1ba4fb487921d2b22773e1613ec0855190b60112b170a504