31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:57:f1:90:d2:31:64:e5:71:19:71:b5:98:64:ae:ef:12:26 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=31981.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:57:f1:90:d2:31:64:e5:71:19:71:b5:98:64:ae:ef:12:26
Serial Number (int): 378374805550113849257498857366421280592422
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c4:db:18:aa:63:cc:81:47:4d:35:f1:94:31:b3:45:55:f7:d2:6e:70
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 44:ac:15:3e:ae:0b:fc:d7:f0:04:29:cb:ea:f7:ad:3b:42:22:86:fe
Fingerprint (sha256): 9c:b9:54:a5:5f:67:a7:21:ce:c6:a1:fc:b2:11:98:eb:1a:25:8b:33:1e:36:d6:81:ba:85:62:72:9e:41:65:cf

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 31981.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 31981.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

31981.com

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31981.com
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31981.com

Certificate

The complete raw certificate details for 31981.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 378374805550113849257498857366421280592422
 . . . . . . . . [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 2019-12-24 12:18:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-23 12:18:22 +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 '31981.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 1013081134107780617503047184318903867774560336783206092989743652826509669985354134773170142956728949080634005067888104906533845224422235944047033553044780866705679974344220340188694035194421335539146020132038169020734549578660464265112843940858978880623158927079776931833664924825643831625834399537137158173097104240212856315979846072395300679419209309736415776173437169489365906443934212510059230872397549572911735672798911642840054985191339612021650086422234045590060081990314651378186888602532640415815787353752018291802610549633631593988390164680625866942797712051794301674959150138365139092010003932235493027951870411274450040046285584827289387494964368962728443862853416019463418305303518438216090257985739690484829422850718241964688211295376202141457622211431083014603582418124666377677065766872411044714239586476777257915190883016109218477186940383083963766823777419183557660782740706393643139453377053618069902307998491192622272801115994154095167819722930925562477931011033030670532429709147129243900283659579370898246484421862669756642425463140210630718104072776090195447021730944004461519869637685483724676007438368272469972798325958484619725164696670316777573172559520528139085373013325959628027770349930134533546660335603
 . . . . . . . . . . . . . . . . . . . . [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)
							c4db18aa63cc81474d35f19431b34555f7d26e70
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '31981.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f380ef8460000040300483046022100cba10389b9366711ff220ab872ba1a805c39f73f4b9edc54b860bc11ec3a0dca022100da5c61cee085264d55cebc56f4826f6720fb1e945ec30f7a8f6895fb584bbec400760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f380ef8470000040300473045022100faefb178260ef7775ba10f716a00562439f79a9f321cf0056a546552b634f6c902204e394c5ada9c105a5a0acf4ec3e6b89f7ccac96269b68810ff9b610d635f1601
 . . . . [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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