www.31981.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:1d:d6:c4:fb:92:28:f4:e7:d2:b0:5f:e0:fb:79:f3:4c:5a 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): 03:1d:d6:c4:fb:92:28:f4:e7:d2:b0:5f:e0:fb:79:f3:4c:5a
Serial Number (int): 271490524019734997920024061205396094930010
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3a:34:ca:27:ae:e2:ae:63:86:7b:46:50:fe:b4:93:37:41:00:85:3c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 75:b0:b9:09:6e:d6:e3:2a:80:b4:34:a5:78:cc:e1:57:ac:6d:4f:c8
Fingerprint (sha256): d5:22:02:8d:8c:b3:56:6e:d1:28:20:6e:24:0e:05:4e:26:4e:9d:6c:8d:6d:cb:7e:09:bc:f7:42:45:69:8d:85

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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAt/W5k+XCMRSjlIFF32a6
LIDYsOoTU0TtubDxHeMI4wp423xT0J8XGSYlojSOB56jdMPzt8aGtz9BshTtE//7
i5SE/ky2tOJjm++4oI/mydldp8leJGLOuJWPSjjyqYMAsgbou3RF0fe3VgWE7g3E
sdXHb4Natkao3jGA9Bt8J7xsIPrxMzmAJxIieCizIMtAiLcjsy0xXTbHpcFzCSMQ
AL2So/Z954w81h1bhfPiPhWGwrNbcCJwHFEz5Vm0AWteZhd1I/TwncG7Bq/eLItZ
YrzRfliFp817qBRJruCXusrPfyuQyEu6UyjTAxl47vpuBo7NpF/2EpRFlf2YvArl
C10ygRaYZTvAf0WFVvFqQEa7nDpjB6dPoZhOBMC9yqdTzUV5HpRDUZ5ClJINvJQ6
C/p8xvn1ZBN2nEjqTF+aQB9EDAktbSOVZ1LYTBWGsCCAIR+XYYOi5zNxbkT+bgkJ
5VsnhYHYYopPx3zAydBGpSaPsdsnojbAuwlP74A3LBNaePfsEDjppoifIjZ7NCIG
Kcrgdou4QjchMOf2+t9HvMTYgSu/bCS3NE7e4tO8Ay3DbyS/adoQcD8pxAPwRbyA
rhDZ+tP8h+WJDEaOA2y8AXFYZU8Zegrj9UbkjuuwtLdRGq/3aI/UDKAeuAnEZQR3
QgY+A/ZI0QkXPxF5LeoW1UECAwEAAQ==
-----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 271490524019734997920024061205396094930010
 . . . . . . . . [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 2019-12-17 17:32:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-16 17:32:46 +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 750490763602491161412026079082851243857911845009141842543968665453408917465433012855945684579245837254908473546102548414135775675196287390128669400474551611373509835116644628728981758259671091745661425835624930754696884501634341241108737435875973842943291162247284226599917519810499701448716295112948774314621238317605635901752134191286056378745232309299625241318997733594114838262566489252582618876440230614670512873764655120672778507003160614590549352874614895065424839467934452901165433291822117540003795290076407908894230991992804214093220048478253690612164826229653463381048409291338476038280524229922210778798675550326008602926981269807076224131461758734700053637509692365104032985989632999445788684323602892677013448837205201176742335351341863936964271589410825169274362335001071949040756246973196386898451747188705818189560469195020855370207934997592016835763063690121836021649150838179893153370410644873105156823219746638796924973884596020241611667423961425448154203929691873332956997085548420477320012955751238606168607745143822576743905339137543087436167142150186400641378033769977188919541651683475183629511816924303131490233689793885216807042674204837112465402502295299720211204830935561802158322864117317720999676269889
 . . . . . . . . . . . . . . . . . . . . [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)
							3a34ca27aee2ae63867b4650feb493374100853c
 . . . . . . . . . . . . . . . . [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)
							00f0007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f15224a82000004030046304402203e4a954ff60e5606ce58663662499cf53fbbb591b80d4059060a68b47ab81133022034a6867ab5d52319705d2e410286145b719d9e97999e499b9da9c5468ee3939f00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f15224aac0000040300483046022100f3c4d05f8189886cd391bd0533ea7eb4e439bbeaececc5cd938247f0a094bba40221008e4833163348316a29eca5631f24984fcbf2aaa12837bdf02a3408cb119e7642
 . . . . [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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