www.79873.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:77:f5:32:76:8e:0f:90:ba:36:2d:e4:aa:32:b6:a0:4a:89 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.79873.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:77:f5:32:76:8e:0f:90:ba:36:2d:e4:aa:32:b6:a0:4a:89
Serial Number (int): 389268668269022444416627623144682644589193
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 39:43:a7:73:5b:c8:cf:b4:75:6d:64:82:22:1e:ab:04:fe:ac:72:a2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): db:61:d2:48:cd:85:fe:ec:c6:6f:0c:b2:7b:81:13:33:f5:fe:6d:4a
Fingerprint (sha256): bb:46:61:60:81:23:b0:a1:30:d4:3f:6c:ad:19:e2:b0:4d:38:a4:ce:2b:d9:17:12:90:96:09:db:e4:32:e6:31

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.79873.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.79873.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.79873.com

Other certificates including the domain name 79873.com

(limited to 100 certificates)
79873.com
www.79873.com
www.79873.com
37782.com
www.83195.com
www.82573.com
79873.com
79873.com
79873.com
www.79873.com
www.79873.com
85915.com
79873.com
www.79873.com
79873.com
www.79873.com
79873.com

Certificate

The complete raw certificate details for www.79873.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 389268668269022444416627623144682644589193
 . . . . . . . . [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 2020-03-22 07:08:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-20 07:08:23 +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.79873.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 868982938922295483918513100380614844112134735874448503445692744386319129977099052698119371718194335246275339741401517626179272812389565601236197838969522953000891880868342013965296789960845009136818439627191607798272237483114561212800054340136845149591777242210875598547381321116946608148570220747384004620285318241220774271749493456868446127985100371307558597561511771640797464545669462271291814666674500109737469010017143114413288104331688547288257046466708910592591536834783207370586845318031133999849732902345691862783975856110816886606746192117791912337035578627889726888339343381541962512532648976161728312282757513090158737350581712543951707355724946474846562383255943921196649109752998133914973513370136961517511232828028178361140954958685066917261355926751059718117551090223577276128559704527526119513675728055239152820238809270843906388237975428915593342253319899608548127836108480828887236111505636692686101634903982497298815610548372003505724509852165525729372300765500098151146774659266526243462458128456322646004154243787350483233994284794699948398927309214785349776006219952191528850426784747189632630816104492222825799899892187163820118286891249863762934071349694931478067887730723530515279822095465856060016082790349
 . . . . . . . . . . . . . . . . . . . . [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)
							3943a7735bc8cfb4756d6482221eab04feac72a2
 . . . . . . . . . . . . . . . . [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.79873.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb273000001710149265c0000040300483046022100c69e133fd9a9fd4d5e78272042d812dd23d4a2430849251aa547d6ecfe074a6602210085d9784e7e5ca9e780f77079fef8f1a243239045131e6313da5afcf7c4c59ed600770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000171014926890000040300483046022100994d47580109dcd30bbbdfd6682267057fecd6c47bd1a8ea4fd9185bc82531c50221008351f30740020e1318181838c292acaf288cc1791c3604936797f723f6f629e1
 . . . . [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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