www.31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f1:07:65:dd:55:84:5e:fe:28:a8:86:8a:86:94:24:ad:87 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.31981.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f1:07:65:dd:55:84:5e:fe:28:a8:86:8a:86:94:24:ad:87
Serial Number (int): 343354741730367999144531980797807335615879
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 39:1e:a1:f2:d0:78:b1:df:5c:74:52:e7:53:92:d6:93:42:9b:ee:be
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f6:d1:04:be:72:60:a4:ee:0c:19:38:93:28:c4:76:33:64:86:e7:9e
Fingerprint (sha256): ca:c1:6d:b3:82:43:1e:63:a2:62:fd:1e:86:89:a0:c0:82:03:34:73:33:fa:07:42:c8:79:4c:d3:c4:65:7c:9f

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.31981.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.31981.com

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31981.com
31981.com
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www.31981.com
31981.com

Certificate

The complete raw certificate details for www.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 343354741730367999144531980797807335615879
 . . . . . . . . [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 2019-03-23 01:57:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-21 01:57:38 +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.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 654147261186746168707062558688378867537094484555725262709458572704455073278867867226784127191858293505903767427656209378635535524362029202022348884125172746227569412765724817135347666725246546666218061933472267156595237523732876730653135359867429717985682187265920576851448393078496956673065501331223112128910498127819964501573387259520582379397122009133459400096545036265765037028484167860902076174092042127017953529262207714563220637058450938309725041481073539669531297809326811185156161533070319754109514553302019496658421284031283514164513268479060543567457129735610552165560898870094180089988815155382037678838552981884136692273402465838663398324867530552507263780366229305484685649516805605268496286257978144575334536941816874670211800937489896105167884684133983155272192715702512542949361273313744647984517944793542270556571270487100499420320410165927495135875469675099882524589408717141186881773812532846767066626713224327837759500526695181681664788615937510939894598090044515485915443921171763315553793824113209997999775312778708976158830433641652455241378979489457552321154926456465574801189229062321572026617848757240870892440215718039528932041992006935861696404962541755122791042242335166135585892552559410076636903971071
 . . . . . . . . . . . . . . . . . . . . [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)
							391ea1f2d078b1df5c7452e75392d693429beebe
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000169a87b7d390000040300483046022100fe7e5ee701668362bf23cab698d2a9d70e33c33c9395107795142a65181822b0022100f86afc0cc0a0d18515debf28c9188148e64ac202b3e98e17e69b3f9a5ae72b4b00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000169a87b7bc60000040300463044022016808ded2809551303e2029ba098225728b65bc10637ef51fdae8d0941bdfd0002201c79388207bdc2bd0615e7d6261bfb3e17ce6e5863220bb86bd5ac33d4f155ac
 . . . . [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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