www.31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:e5:d8:ae:f8:72:73:7d:58:1e:9e:f9:a1:bc:75:be:63:8a 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): 04:e5:d8:ae:f8:72:73:7d:58:1e:9e:f9:a1:bc:75:be:63:8a
Serial Number (int): 426661827497784156148393384059217985299338
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: ac:f3:b2:50:e2:9b:6e:60:52:c1:bc:00:7f:b0:e4:9c:de:70:2e:ae
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7d:37:f9:fb:ad:4a:8b:7a:63:4c:d3:3d:cd:4a:a8:f9:d6:dd:49:fe
Fingerprint (sha256): 17:44:6a:92:c4:76:c9:e5:b7:91:99:46:df:8d:57:c8:3c:15:9f:33:24:4c:46:a6:4f:1a:d7:96:64:86:89:ac

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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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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAl+KpFQ2KMnrvjkoFu8jG
PEUFJ/8sk2iNgw0qi8orpLEc7N4c8twOF82byFMzbvMYv2nb207jXesOguVK8lmK
ePUPl1eY2F5vPju6KeWkU8zlLlKRkw8PTUMhhslmWJrxoYaVqoXMJVFVWkj3eLzM
76nIsMO01vAKoiGZPXRj0GwH46MGG3Pjtt3rBjnzqPBu69ZH75iBR4uWye4Yl9W6
7cWKoZ7yzTCtOmkX4VN9URF6+g9Uq1wvJJ4v23gbDBGGKvYWSzCJIxCjB+SV7d0n
i9oCm+LtCWG1ZsybOKm9HUF60pcOI3MdKa1eF4bwolgsSVyPqXYF0pjsCvACvu+n
Dbzc1zy0xrt27bYPv6LAyvy/zWe2uPkS00mqcGei6Aln88DJRtOych02jWs3izUS
oPoEgu8X21kCY9EImY6KJiBDUKKTWapxBgNnPGxgfMfBHPystqrhmAZxYcPHwyE+
HdFXQ/kPjtfhHdPYC9bTH4P1UjqILYcdj4am5GiTs5PqIi+Ap3uwt1vmJYYVGvuq
uvrBYIe4OPJrr7WEyQsFHaa6lLduZDy4OFkGAb+PPLhoh7wO/RQUVnXu2hqA4wfK
k1fEbGbp5TRIaoFmUjGIo0tYPbNP16IrHqaJ9/Jo3ZNfGL0Q6JveO93P/QpjK3cy
CDDjAncPzZj0hE6mTqFi1Z8CAwEAAQ==
-----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 426661827497784156148393384059217985299338
 . . . . . . . . [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 2019-10-13 02:23:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 02:23:25 +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 619638340491559662018790685488205823019312614508510293870655315789974547281421314989695190622785402189772397323895869326686723061501141997055966627017192044223274345492262668466080009592966329557355675410818166227097320601490836281456678379595282468670558570814244363854126302747333885907464041298744273644320723405109857664345410899449025752277986156523234969763305985591025407379126670206667221450509253134533740814231138237296541038633435530414659324479075997175428804379037618064373489489684075688754465603502105784063294980189025708141613170363105397354319603073194015335286406088043513756958489405255784277935899775169510225764655968120906257857103214914922448815121607697101505504559836709312207989708193408402040693130116242135463750310569650121844755478119595761207111110727423924452977409664415044048065797352001530099040247918040594450372155586645891651821565051894783576690058606521586115190691082216812829924921713803874221790358217859106071003071854036639044926963576215560287915090028018414930125792821063408365096257438346276022497727719599565723240225769754419427136644285567463885263926467690316833910644495043076947165097128175568498617779726526005820865853881539071556444565340093821535907286275864698204803224991
 . . . . . . . . . . . . . . . . . . . . [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)
							acf3b250e29b6e6052c1bc007fb0e49cde702eae
 . . . . . . . . . . . . . . . . [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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc324661c00000403004630440220265ca270b7a225f4a240e3cc8a869a48254de653f8fb6acb22e8c072a5a61443022028f03853c0f6a00cabedc0b304b275bd5c7fea506eee97e3d290acc138a99039007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc324661100000403004830460221009b3d78bf45a8ae0d1ec10844aba94c7113abce20173b25a6df7067d4ce034df1022100a95517d4558f10350f5d2e55d3bd54290ab6145f4a842b6d22671114b2d69db2
 . . . . [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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