www.31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:67:ff:0e:91:96:25:e0:a1:5b:e4:28:6a:04:0e:30:75:8c 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): 03:67:ff:0e:91:96:25:e0:a1:5b:e4:28:6a:04:0e:30:75:8c
Serial Number (int): 296724970372063914125151496815977004299660
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 97:1f:d8:e5:96:df:08:35:7d:b3:0c:98:35:c0:63:64:48:e7:a7:a5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 34:5b:25:7b:0a:30:bb:64:ce:a1:4e:bb:9e:73:bd:59:08:e4:d1:7e
Fingerprint (sha256): 26:c8:0e:e5:fb:c8:e9:62:ff:80:d6:66:7e:74:2f:8c:20:ec:ea:0d:ec:0f:84:01:87:6c:d9:c7:60:a7:ce:cc

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

Other certificates including the domain name 31981.com

(limited to 100 certificates)

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 296724970372063914125151496815977004299660
 . . . . . . . . [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 2019-05-31 09:59:47 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-29 09:59:47 +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 862024829271414814517172229082597806638011055954618692709336336890862586088246310901153545630376656756290608821667063528338916115276250557898914348428480586680383493622988665596843718168283417703371563590916484067473242997369845261076505589476859586992314641053524698722457225104737240617448452371654190971757320894082251685079259169088439126614737498755591108694767700595099184565590465527970334032843144287875842158126271831803858306105337505091828070602950110009379703269112123707875962024967796964064004304862293405588245174735654653703732751508792737191234156562424646656532667891977793836262058923124552535619666792520530860604239706456484172843725186624094269452619594580358951154735448508309334433056778973668963541554457275912448163459549941088555097335029993897193198493610807714908596473443399169042621998376432464917895785375045501761944562600823594896368196610134181291949445543886475979347671575694071388687143721028513922790532979390242714000290374188378398922493125012020727220134217651145488976425923932576796688239347629504495818649305925220344487217890618474126513749218421289338597741770219660193063604606074379623212157470572017439896122373379236011826078265790068769266755336248041835363532029071539271199367567
 . . . . . . . . . . . . . . . . . . . . [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)
							971fd8e596df08357db30c9835c0636448e7a7a5
 . . . . . . . . . . . . . . . . [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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b0d8bb26d0000040300473045022100e450cf14ab556bf63568a58315ec2541a2448c6bc6d0568f5d907eee3b9805a102200f4d1bf950fb2655105703c2884da7462f561c484ca60382887d90a7e58f6d8f007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016b0d8bb27f000004030047304502200b835e6014b84ba4907423686da1e1aed4641d896332971f29c4ddde9c8b4403022100d40dfbf3c85400d5d88ddc7dad729aabec5a31ee0d819fc619815d0efc25f450
 . . . . [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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