www.31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:c1:2f:3a:a8:6c:7f:57:a0:85:d1:49:a6:6d:99:ae:6f:c6 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:c1:2f:3a:a8:6c:7f:57:a0:85:d1:49:a6:6d:99:ae:6f:c6
Serial Number (int): 327074132896082414950193863411020222853062
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 37:c1:87:4f:2f:3f:5f:16:35:41:de:0a:88:a5:75:45:76:3b:a5:57
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1e:46:26:a4:25:a7:48:fb:2f:d7:2b:ce:cb:e2:cc:66:96:fc:e5:97
Fingerprint (sha256): 09:8d:99:8e:34:72:ef:cc:9f:0b:88:40:3d:7d:6e:07:ac:9e:09:c7:05:74:c6:b0:90:9b:38:ed:2e:60:a9:0c

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 327074132896082414950193863411020222853062
 . . . . . . . . [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 2020-03-15 02:53:36 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-13 02:53:36 +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 708534910904415905581168106005918674095534597721621208574362750423776127470562430328670552777921431721841825853882360293170995868884901795334884532191149301961058344060898674284027561431740589088895648379738943108792014188240059995640271401772019926676830269051819065282633308141680485182010040247593722907798600614625072109054144694799594152224355867846034106747633100768627624733536719273552423592780484403791080854428794888139314567638781210970505165407729856620599038150131186036415496041875859085205022900389877827919773737796362291273230131368849453553204728447095438227324118125332031432725583736847019219914602429604213309868713220721530152629316470875812191904778998609131521162043963885143093131305482063271027988748382543774005214710855019912196951776411508931751061648710124042281242638608566933512393114691095074640214500469972093754404331922488803617912971150556761367306318064476862631996063686043047684568629744168464721657115473621668373466869756399031151818101769957102238579786010765615209838489749740541065410978488782653814297621709483828448721036334231357821854887300978867289869829276257492951151052908788222568289467221318017834922504176136091929392071262397053879681658146825767006947313489514698461169436311
 . . . . . . . . . . . . . . . . . . . . [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)
							37c1874f2f3f5f163541de0a88a57545763ba557
 . . . . . . . . . . . . . . . . [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)
							00f0007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e00000170dc5361870000040300473045022100dd4c7e0537027fd8ef42f62f67874d8973d20f84f394681845cac0e53198711e022077247430d6690af1738b1fcdac7976ba00cff8926c5dfdf82f962d5b6d0302b6007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170dc53617d000004030047304502206d42656b5acd7a79d8d303f15ebb6b2a5c8a5ea703726cc4ef0786fc9f52d6590221009a119f9b11eeb9b79345822e9d77bf475d4c4a988306f6976f3b31f95d8bdca9
 . . . . [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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