www.28912.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:a2:4c:18:6b:dd:16:a6:58:05:8f:61:3c:31:ca:05:d5:60 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.28912.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a2:4c:18:6b:dd:16:a6:58:05:8f:61:3c:31:ca:05:d5:60
Serial Number (int): 316563749367011290737096254388623722796384
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 34:29:fa:27:38:e7:32:06:0b:d3:0c:4c:2e:7f:a0:64:5e:e3:2e:ba
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6e:17:50:f7:32:8a:f0:a5:8c:68:56:ca:50:c0:7c:ba:0c:29:83:3a
Fingerprint (sha256): aa:b0:dc:31:40:af:59:c9:53:f8:f6:9e:bc:b6:58:c4:94:83:b1:c6:65:ca:4d:a3:4b:c4:b8:28:0e:90:ad:8f

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.28912.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.28912.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.28912.com

Other certificates including the domain name 28912.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.28912.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 316563749367011290737096254388623722796384
 . . . . . . . . [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 2019-11-09 06:35:54 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-07 06:35:54 +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.28912.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 938692217663331795230426314260506236214900241614721191051794939923959147024312811749474637915527225704192431369097630216137086728977557449359937591453786217746382504893691443552841562833257846438258793977231986677206665588656860535420217137152479084449800856532083084845941548985785299575098507401415974128463962574319039107705873113388043197517052551523612853610699742562549684049461406300523889030968601809408042666587281122468149020324942997955978788399970128729306290186856389430530877102989755000490294222550902390372725511455809573593352934694119269127113544147504647908273927410163736146194238102385804807533083636143429091196832379431470855523206688532597020552153650113202625754558893388223982146438294450442168195285345306125857694142709734531033678617299342820658106140855498393349013499824048966637280778380577074972588072451842732848421303396000414335227781321040141241658848125510340512606868050382271856188799682099040463923644618279322417345277997553823781790853839303818100566031719898926940551378182847415266698402822396633132610647259185384193779325451378068929875010965084238183350902563110215626970876387388946336944200230640269403222419124914867302092443742573829541392184995303109921557925481033797557760001069
 . . . . . . . . . . . . . . . . . . . . [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)
							3429fa2738e732060bd30c4c2e7fa0645ee32eba
 . . . . . . . . . . . . . . . . [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.28912.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)
							00f2007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e4f1742150000040300483046022100801af28347fc1a9b90a6fb8d26c0f8cd507d2b0e8c711cdf21fba75b5d5b8278022100934699843d19f29fe44e7b48da82b476fc1c8bc20ffff730f34e932b6ae1a8ed007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e4f1742060000040300483046022100ee334e9f4b684a627937119be86f581037e90021e5d3bf9b3026be7ca2796430022100c1c097fdc120a624e48ac7f36ce3f1ac05da9c6f3ff1c1d818844b633e074814
 . . . . [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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