www.31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8f:d1:79:b9:72:c1:0b:06:0b:e9:1e:e6:7c:57:14:9f:86 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): 03:8f:d1:79:b9:72:c1:0b:06:0b:e9:1e:e6:7c:57:14:9f:86
Serial Number (int): 310275676945351401482532824710196097228678
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cc:7f:df:b3:97:2f:d9:58:d4:35:dc:3b:3e:03:47:98:c0:72:cc:dd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b4:3a:8f:a4:a9:3c:c8:e1:14:a9:19:e3:0b:53:68:6c:b0:2d:cb:5a
Fingerprint (sha256): 2e:d7:27:02:15:c6:e1:bb:13:5c:26:28:a7:d2:3e:9d:09:1f:8b:38:e3:26:ec:50:df:7d:a7:52:a2:9e:ec:1c

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-----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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 310275676945351401482532824710196097228678
 . . . . . . . . [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 2019-08-08 10:52:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-06 10:52:26 +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 982680934033274036377740733337599754356542598164484970250914803531550500375297170554454119715637753813875748104724879629266939300345319053807620304948118372340797799814692161601480654453909266381666342436905565176240345183440138340193957924083566614857406511639152993896226416729264735187803655665583727266077557051472550714320923028831665248203818942169837576785568356292816007366521157493971976789455876901669565044001000887690438084875230177693335293563023921869009912848350853407258777833627029050015117634943104518369484241084584544451820019119605465487831954242114971080561317093712507986944414162611179084013679609203623251600753401263805704510062209822613209592699744860642569964751315415844800519464610406556544308512979882495190927567332847573316516319549592223786934947276626580429500171645432554475474632453141599133898116351835664969059942080017478247030298050442575266781571704164998751215214488583607946304520399220615327435027292144535858624999716567793326427205998961785986565646497544428525464046345978521579750056890100387093812998663801068586088625078870139823247005659865281157062357958076302835237368534463934604138826258428467235175074995160959908603902841637021116345611881416471014100399667211749522916786227
 . . . . . . . . . . . . . . . . . . . . [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)
							cc7fdfb3972fd958d435dc3b3e034798c072ccdd
 . . . . . . . . . . . . . . . . [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)
							00f00075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016c7112b1b90000040300463044022063582cfc0ba01d836bcbd84de7256ed94cf134c13853495a13b29e1d5e03aee302204872ed06dd551b2432b3c72434c27ba3e278d33f6bca45d86c19325020922847007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c7112b379000004030048304602210080f571b4764baca00180f19843e876c034115f22174fd9a4bf8c9399eeb825bd022100f67d5ef1d5aca64bbb0dacdcef1dcef2a9149090f4a871df9c3d5d1766a443c5
 . . . . [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)
		001e9568c408c82db1d238526e3497226b19584de360a22999405831e5af03b0c10f18e50fa04514d703a83e3534b684f4a7d735dd97382a659c8cea8916f6ec40ccf2d41c584ffaaed8cfa65b029a3d6e931a6c6c973abaa3d48234897267302de9f0fefbe00a7ffe39ba18ca6b1edc58fb342bc883200d27ee66ab32eb487e538afa4112f9c1caf12a67ab3e3febfe36daa4d5672f1bafe028dfb83c590c7f0f902c5e6d5e8f37960624dcc69757da83332499f4e808961bb3ee65b1f2f202c2e8fa20155e3df0d4c07183d1090b4a73a728dc9838bffe382abfa101b5483967342a37920356bd5ec953896d748d684c6c5cfd2ab69495fbf2ffde2f28e47d4d