store.d-stroytime.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:92:9b:16:3d:cf:9f:35:80:0d:e7:9f:1a:80:8b:1b:fc:30 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=store.d-stroytime.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:92:9b:16:3d:cf:9f:35:80:0d:e7:9f:1a:80:8b:1b:fc:30
Serial Number (int): 311224229189291793589586363709974529178672
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 00:66:4b:31:d8:37:54:67:18:a9:ee:98:1f:fa:29:96:a1:c0:8d:33
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 61:56:2c:22:1c:5f:5e:08:8f:43:8c:4d:64:2c:e2:5d:c7:eb:53:11
Fingerprint (sha256): 62:89:bf:07:25:41:cb:a7:a7:56:4f:ee:a3:eb:01:d2:cd:e7:0c:9d:6f:63:4d:15:31:1b:7d:0a:5f:4c:d3:71

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 store.d-stroytime.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for store.d-stroytime.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

store.d-stroytime.com

Other certificates including the domain name d-stroytime.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for store.d-stroytime.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAs1GIFsQQ8/dmHJ51tiY5
undsbZGRjFsyDLcork4IrTd5uCeaTA9YtDghaQ/ue+hpO95r3HwwPPVzmr7X0Wmx
WWY2KIaeuZB/sAQbseKDT8kn+YohvStKIb/ejO5HnMMUw3aGvOLgn/GlLUk4scTX
9O6rbP4Wpc9OjOlqvHkT6BuwckNba0PePAIYur6ybLGW39jNCLDZnLL6x7DOTphK
QVV1WZeCVUfl7rxzHY26fV88/q1BSM+fITpua123SLphFk18+SwPzsQfEAEAkZEy
8IyNaW4Rgcf9jnQhvNvk3rn7zxYgE8dX+E5wcres5foxxp+mH/xnF72RvBreTI7a
5pKsGMRbMn7lMZHcOryOaGfTc/6bjWW2RwrHjgYfpI/IEialpGFXDIDlsPP3qLtO
k8wY57msMzlaJdPEs1Vn34zSMBcOkzrgq7QfcwzDti3fUqQ6H99ew7Gtne0/eM5y
L5zapkPVlLxq4KqT1tSyW+GuQRXrpeiopd0MfjiVOL3nYNLnY84b/CHlG8mzUEu9
lIJfJMB995UxBABrxyuVc94jfJ5dXzhKoGBg0GUuWMdzel++MvnCqtEe6+738NbY
iOtfen4aVkHa2eepd79eYp69fgidWfWK7BBhWdwL8xW+i8rUeGWW5/cR5w5NAY0Q
Fgqk7+DS7EpFEK/VLWQAo2MCAwEAAQ==
-----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 311224229189291793589586363709974529178672
 . . . . . . . . [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 2019-08-01 07:17:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-30 07:17:51 +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 'store.d-stroytime.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 731555584650629195912065130728885929053548568936587090733919326079261607552835198461250687347649717500350828385398443472837231675441790636333643277747989220378808104727497246316008872876412600819058768332052812428164864897591692377832212476974037064229246516653845683072960985510938501815490843143692117501545590464282037044334444552568873694509915152555056121263373114487455390291902895112270008128657960611338849784164848658411693975661718075092005349543546684153395013495372702247768969017795223563933113317065729238939528480287851376865061791826968024729518076533457639756940248146684703844498666089516852148583707181325796453723080044416359524858021784060779352249446342698440354765122297250755139376576349274850563020284550203081731448359415813273576663769257425795257822502596395880498127907710655982489403063996233915001163744524272009640715998070974911081700771720631215344885770397543493446179839475620850715162518031988642273276857364787510016185478205111700982839198199122976608087822437103738010648080690740871629322344056311552779819593509640519350868506218662479870804971718423617263370777561117056844428635121473465336263147141192797087970574163895062899885246847445701881104456781385786058298194625472740670258062179
 . . . . . . . . . . . . . . . . . . . . [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)
							00664b31d837546718a9ee981ffa2996a1c08d33
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'store.d-stroytime.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c4c41bae600000403004630440220728db0942af2fcffa18113d94c5cdccb3b94e7b2872adaa226563f35c3e90e4702200847e40c6fae3ebb9e7ebc97b2587df4c0fd97a617463571cb1b9c2c3829d06900750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016c4c41bb05000004030046304402207faef9797311b1128a4bb3ba84ee04a47b96577de840fa2834f43625559e0f8502200443cf5a6079411d1d243509d410e27f2b59df043b1a02e37606c67edc095ab4
 . . . . [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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